7zx8

Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (OC)

Method: ELECTRON MICROSCOPY D_max: 253.9 Å Quality: GOOD

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1. Protein Identity and Related Structures Protein Identity & Related Structures

DNA-directed RNA polymerase subunit

OrganismNot specified

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein–DNA Heteromer Protein × 22 DNA 2 PDB declaration: 24-meric（24） Consistent with all polymer counts	Chain A； UniProt 1–1970	Not recorded	DNA-directed RNA polymerase subunit beta × 1 （I3LGP4） DNA-directed RNA polymerase II subunit RPB3 × 1 （I3LCH3） RNA polymerase II subunit D × 1 （A0A287ADR4） DNA-directed RNA polymerase II subunit E × 1 （I3LSI7） DNA-directed RNA polymerase II subunit F × 1 （F1SKN8） DNA-directed RNA polymerase II subunit RPB7 × 1 （I3LJZ9） DNA-directed RNA polymerases I, II, and III subunit RPABC3 × 1 （A0A4X1ULF2） DNA-directed RNA polymerase II subunit RPB9 × 1 （P60899） DNA-directed RNA polymerases I, II, and III subunit RPABC5 × 1 （A0A4X1VYD0） RNA polymerase II subunit J × 1 （A0A4X1UK25） RNA polymerase II subunit K × 1 （I3LN51） Transcription initiation factor IIB × 1 （Q00403） Non-template strand × 1 TATA-box-binding protein × 1 （P20226） General transcription factor IIF subunit 1 × 1 （P35269） General transcription factor IIF subunit 2 × 1 （P13984） Template strand × 1 Transcription initiation factor IIA subunit 1 × 1 （P52655） Transcription initiation factor IIA subunit 2 × 1 （P52657） snRNA-activating protein complex subunit 1 × 1 （Q16533） snRNA-activating protein complex subunit 3 × 1 （Q92966） snRNA-activating protein complex subunit 4 × 1 （Q5SXM2） snRNA-activating protein complex subunit 5 × 1 （O75971） ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.00 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB	Difference from Current Entry 7ZX8	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
7ZWD Structure of SNAPc containing Pol II pre-initiation complex bound to U5 snRNA promoter (CC) Deposited 2022-05-19	Parsed fields agree	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain A 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7ZX7 Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (CC) Deposited 2022-05-20	Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain A 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8BZ1 RNA polymerase II core pre-initiation complex with the proximal +1 nucleosome (cPIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 26 PDB declaration: 28-meric	Chain A 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8GXQ PIC-Mediator in complex with +1 nucleosome (T40N) in MH-binding state Deposited 2022-09-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 83 PDB declaration: 87-meric	Chain PA 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 19 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.04 Å
8GXS PIC-Mediator in complex with +1 nucleosome (T40N) in H-binding state Deposited 2022-09-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 83 PDB declaration: 87-meric	Chain PA 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 19 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.16 Å
8QEP RNA polymerase II bound to Alu RNA right arm Deposited 2023-09-01	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: 11-meric	Chain A 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.25 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
8QEQ RNA polymerase II bound to minimal Alu RNA right arm in the alternative conformation Deposited 2023-09-01	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–RNA Heteromer；Protein × 10 PDB declaration: 11-meric	Chain A 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 7 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.25 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8UHA Structure of paused transcription complex Pol II-DSIF-NELF - tilted Deposited 2023-10-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 18 PDB declaration: 21-meric	Chain A 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
8UHD Structure of paused transcription complex Pol II-DSIF-NELF - post-translocated Deposited 2023-10-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 18 PDB declaration: 21-meric	Chain A 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
8UHG Structure of paused transcription complex Pol II-DSIF-NELF - poised post-translocated Deposited 2023-10-09	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 17 PDB declaration: eicosameric	Chain A 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.70 Å
8UI0 Structure of poised transcription complex Pol II-DSIF-NELF - pre-translocated Deposited 2023-10-09	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 17 PDB declaration: eicosameric	Chain A 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.70 Å
8UIS Structure of transcription complex Pol II-DSIF-NELF-TFIIS Deposited 2023-10-10	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain A 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.23 Å
8W8E human co-transcriptional RNA capping enzyme RNGTT Deposited 2023-09-02	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 19 PDB declaration: 22-meric	Chain A 1–1970（1970 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8 GTP GUANOSINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 3.90 Å
8W8F human co-transcriptional RNA capping enzyme RNGTT-CMTR1 Deposited 2023-09-02	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain A 1–1970（1970 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8 GTP GUANOSINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 4.00 Å
8WAK Structure of transcribing complex 2 (TC2), the initially transcribing complex with Pol II positioned 2nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain o 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.47 Å
8WAL Structure of transcribing complex 3 (TC3), the initially transcribing complex with Pol II positioned 3nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain o 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 8.52 Å
8WAN Structure of transcribing complex 4 (TC4), the initially transcribing complex with Pol II positioned 4nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain o 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.07 Å
8WAO Structure of transcribing complex 5 (TC5), the initially transcribing complex with Pol II positioned 5nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain o 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.40 Å
8WAP Structure of transcribing complex 6 (TC6), the initially transcribing complex with Pol II positioned 6nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain o 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.85 Å
8WAQ Structure of transcribing complex 7 (TC7), the initially transcribing complex with Pol II positioned 7nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain o 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.29 Å
8WAR Structure of transcribing complex 8 (TC8), the initially transcribing complex with Pol II positioned 8nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain o 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
8WAS Structure of transcribing complex 9 (TC9), the initially transcribing complex with Pol II positioned 9nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain o 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.13 Å
8WAT De novo transcribing complex 10 (TC10), the early elongation complex with Pol II positioned 10nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain o 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.82 Å
8WAU De novo transcribing complex 11 (TC11), the early elongation complex with Pol II positioned 11nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain o 1–1970（1970 aa）	Not recorded	W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1 ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.78 Å
8WAV De novo transcribing complex 12 (TC12), the early elongation complex with Pol II positioned 12nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain o 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.72 Å
8WAW De novo transcribing complex 13 (TC13), the early elongation complex with Pol II positioned 13nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain o 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.02 Å
8WAX De novo transcribing complex 14 (TC14), the early elongation complex with Pol II positioned 14nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain o 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.75 Å
8WAY De novo transcribing complex 15 (TC15), the early elongation complex with Pol II positioned 15nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain o 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.85 Å
8WAZ De novo transcribing complex 16 (TC16), the early elongation complex with Pol II positioned 16nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain o 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.76 Å
8WB0 De novo transcribing complex 17 (TC17), the early elongation complex with Pol II positioned 17nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain o 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.94 Å
9FD2 Structure of Pol II-TC-NER-STK19 complex Deposited 2024-05-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 19 PDB declaration: 22-meric	Chain A 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
9HVO Structure of the transcribing Pol II-RECQL5 complex Deposited 2024-12-31	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: 16-meric	Chain A 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；20 mM HEPES pH 7.5, 100 mM NaCl, 3 mM MgCl2, 1 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
9HVQ Structure of the transcribing Pol II-DSIF-PAF-SPT6-RECQL5 complex Deposited 2024-12-31	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 21 PDB declaration: 24-meric	Chain A 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；20 mM HEPES pH 7.5, 50 mM KCl, 4 mM MgCl2, 1 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.00 Å
9HWG Structure of the transcribing Pol II-TCR-RECQL5 complex Deposited 2025-01-03	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 18 PDB declaration: 21-meric	Chain A 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；20 mM HEPES pH 7.5, 50 mM KCl, 4 mM MgCl2, 1 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
9J0N Paused elongation complex of mammalian RNA polymerase II with nucleosome (PEC2-nuc) Deposited 2024-08-02	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 27 PDB declaration: 30-meric	Chain A 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
9J0O Arrested elongation complex of mammalian RNA polymerase II with nucleosome (AEC1-nuc) Deposited 2024-08-02	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 26 PDB declaration: 29-meric	Chain A 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
9J0P Arrested elongation complex of mammalian RNA polymerase II with nucleosome (AEC2-nuc) Deposited 2024-08-02	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 26 PDB declaration: 29-meric	Chain A 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
9QEQ Structure of the transcribing Pol II-DSIF-SPT6-U1 snRNP complex Deposited 2025-03-10	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 24 PDB declaration: 28-meric	Chain A 1–1970（1970 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；20 mM Hepes, 100 mM NaCl, 3 mM MgCl2, 0.5 mM TCEP cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
9RTT Activated Elongation Complex with IWS1 and ELOF1 Deposited 2025-07-03	Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 22 PDB declaration: 25-meric	Chain A 1–1970（1970 aa）	Non-standard monomer：Yes (specific site not provided by mmCIF)	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.01 Å
9RZE State 2 MAP 3 RNA Pol II activated elongation complex with SETD2 bound to proximal upstream H3 Deposited 2025-07-15	Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 31 PDB declaration: 34-meric	Chain A 1–1970（1970 aa）	Non-standard monomer：Yes (specific site not provided by mmCIF)	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 8.53 Å
9S0U State 3 MAP 3 RNA Pol II activated elongation complex with SETD2 bound to distal upstream H3 Deposited 2025-07-17	Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 32 PDB declaration: 35-meric	Chain A 1–1970（1970 aa）	Non-standard monomer：Yes (specific site not provided by mmCIF)	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.72 Å
9S3G State 1 MAP3 RNA Pol II activated elongation complex with SETD2 and upstream hexasome Deposited 2025-07-24	Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 31 PDB declaration: 34-meric	Chain A 1–1970（1970 aa）	Non-standard monomer：Yes (specific site not provided by mmCIF)	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.40 Å

42 other PDB entries and 42 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	A0A8D1DPV6_PIG
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–1970； UniProt 1–1970

DNA-directed RNA polymerase subunit beta

OrganismNot specified

UniProt I3LGP4

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein–DNA Heteromer Protein × 22 DNA 2 PDB declaration: 24-meric（24） Consistent with all polymer counts	Chain B； UniProt 78–1251	Not recorded	DNA-directed RNA polymerase subunit × 1 （A0A8D1DPV6） DNA-directed RNA polymerase II subunit RPB3 × 1 （I3LCH3） RNA polymerase II subunit D × 1 （A0A287ADR4） DNA-directed RNA polymerase II subunit E × 1 （I3LSI7） DNA-directed RNA polymerase II subunit F × 1 （F1SKN8） DNA-directed RNA polymerase II subunit RPB7 × 1 （I3LJZ9） DNA-directed RNA polymerases I, II, and III subunit RPABC3 × 1 （A0A4X1ULF2） DNA-directed RNA polymerase II subunit RPB9 × 1 （P60899） DNA-directed RNA polymerases I, II, and III subunit RPABC5 × 1 （A0A4X1VYD0） RNA polymerase II subunit J × 1 （A0A4X1UK25） RNA polymerase II subunit K × 1 （I3LN51） Transcription initiation factor IIB × 1 （Q00403） Non-template strand × 1 TATA-box-binding protein × 1 （P20226） General transcription factor IIF subunit 1 × 1 （P35269） General transcription factor IIF subunit 2 × 1 （P13984） Template strand × 1 Transcription initiation factor IIA subunit 1 × 1 （P52655） Transcription initiation factor IIA subunit 2 × 1 （P52657） snRNA-activating protein complex subunit 1 × 1 （Q16533） snRNA-activating protein complex subunit 3 × 1 （Q92966） snRNA-activating protein complex subunit 4 × 1 （Q5SXM2） snRNA-activating protein complex subunit 5 × 1 （O75971） ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.00 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7ZX8	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
6EXV Structure of mammalian RNA polymerase II elongation complex inhibited by Alpha-amanitin Deposited 2017-11-09	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain B 85–1251（1167 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
6GMH Structure of activated transcription complex Pol II-DSIF-PAF-SPT6 Deposited 2018-05-26	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: heptadecameric	Chain B 78–1251（1174 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE；10s wait prior to blotting, blotting 8.5s	Resolution 3.10 Å
6GML Structure of paused transcription complex Pol II-DSIF-NELF Deposited 2018-05-27	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 18 PDB declaration: 21-meric	Chain B 78–1251（1174 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 9	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
6TED Structure of complete, activated transcription complex Pol II-DSIF-PAF-SPT6 uncovers allosteric elongation activation by RTF1 Deposited 2019-11-11	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 21 PDB declaration: 24-meric	Chain B 1–1251（1251 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE；2 microliters applied to both sides of grid. Sample incubated on grid for 10s prior to blotting. Blotting for 8.5s.	Resolution 3.10 Å
7NVR Human Mediator with RNA Polymerase II Pre-initiation complex Deposited 2021-03-15	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 56 PDB declaration: 58-meric	Chain B 78–1251（1174 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 18 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.50 Å
7NVS RNA polymerase II core pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain B 78–1251（1174 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7NVT RNA polymerase II core pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain B 78–1251（1174 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7NVU RNA polymerase II core pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain B 78–1251（1174 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
7NVY RNA polymerase II pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain B 78–1251（1174 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.30 Å
7NVZ RNA polymerase II pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain B 78–1251（1174 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
7NW0 RNA polymerase II pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain B 78–1251（1174 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 15 ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 2 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.60 Å
7OKX Structure of active transcription elongation complex Pol II-DSIF (SPT5-KOW5)-ELL2-EAF1 (composite structure) Deposited 2021-05-18	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain B 1–1251（1251 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
7OKY Structure of active transcription elongation complex Pol II-DSIF-ELL2-EAF1(composite structure) Deposited 2021-05-18	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain B 1–1251（1251 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 9	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.14 Å
7OL0 Structure of active transcription elongation complex Pol II-DSIF (SPT5-KOW5) Deposited 2021-05-18	Different construct Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain B 1–1251（1251 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OO3 Pol II-CSB-CSA-DDB1-UVSSA (Structure1) Deposited 2021-05-26	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 17 PDB declaration: eicosameric	Chain B 78–1251（1174 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7OOB Pol II-CSB-CSA-DDB1-UVSSA-ADPBeF3 (Structure2) Deposited 2021-05-27	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain B 78–1251（1174 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.70 Å
7OOP Pol II-CSB-CSA-DDB1-UVSSA-PAF-SPT6 (Structure 3) Deposited 2021-05-28	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 23 PDB declaration: 26-meric	Chain B 78–1251（1174 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7OPC Pol II-CSB-CRL4CSA-UVSSA-SPT6-PAF (Structure 4) Deposited 2021-05-31	Different oligomeric state Different ligand/ion	Assembly 1 Other combination Heteromer；Protein × 25 PDB declaration: 28-meric	Chain B 78–1251（1174 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OPD Pol II-CSB-CRL4CSA-UVSSA-SPT6-PAF (Structure 5) Deposited 2021-05-31	Different oligomeric state Different ligand/ion	Assembly 1 Other combination Heteromer；Protein × 25 PDB declaration: 28-meric	Chain B 78–1251（1174 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7ZWD Structure of SNAPc containing Pol II pre-initiation complex bound to U5 snRNA promoter (CC) Deposited 2022-05-19	Parsed fields agree	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain B 78–1251（1174 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7ZX7 Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (CC) Deposited 2022-05-20	Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain B 78–1251（1174 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8A3Y Structure of mammalian Pol II-DSIF-SPT6-PAF1-TFIIS-hexasome elongation complex Deposited 2022-06-09	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Insufficient information Heteromer；Protein × 27 PDB declaration: 30-meric	Chain B 50–1300（1251 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
8A40 Structure of mammalian Pol II-TFIIS elongation complex Deposited 2022-06-09	Different construct Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain B 1–1251（1251 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
8BVW RNA polymerase II pre-initiation complex with the distal +1 nucleosome (PIC-Nuc18W) Deposited 2022-12-20	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 40 PDB declaration: 42-meric	Chain B 78–1251（1174 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.00 Å
8BYQ RNA polymerase II pre-initiation complex with the proximal +1 nucleosome (PIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 38 PDB declaration: 40-meric	Chain B 78–1251（1174 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 16 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
8BZ1 RNA polymerase II core pre-initiation complex with the proximal +1 nucleosome (cPIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 26 PDB declaration: 28-meric	Chain B 78–1251（1174 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8OEU Structure of the mammalian Pol II-SPT6 complex (composite structure, Structure 4) Deposited 2023-03-13	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain B 1–1251（1251 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.04 Å
8OEV Structure of the mammalian Pol II-SPT6-Elongin complex, lacking ELOA latch (composite structure, structure 3) Deposited 2023-03-13	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain B 1–1251（1251 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.86 Å
8OEW Structure of the mammalian Pol II-Elongin complex, lacking the ELOA latch (composite structure, structure 2) Deposited 2023-03-13	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain B 1–1251（1251 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
8OF0 Structure of the mammalian Pol II-SPT6-Elongin complex, Structure 1 Deposited 2023-03-13	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain B 1–1251（1251 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.05 Å
8P4A Structural insights into human co-transcriptional capping - structure 1 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain B 78–1251（1174 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8P4B Structural insights into human co-transcriptional capping - structure 2 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain B 78–1251（1174 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
8P4C Structural insights into human co-transcriptional capping - structure 3 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain B 78–1251（1174 aa）	Not recorded	ZN ZINC ION × 3 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8P4D Structural insights into human co-transcriptional capping - structure 4 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain B 78–1251（1174 aa）	Not recorded	ZN ZINC ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8P4E Structural insights into human co-transcriptional capping - structure 5 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain B 78–1251（1174 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.90 Å
8P4F Structural insights into human co-transcriptional capping - structure 6 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain B 78–1251（1174 aa）	Not recorded	MGT 7N-METHYL-8-HYDROGUANOSINE-5'-TRIPHOSPHATE × 1 ZN ZINC ION × 8 MG MAGNESIUM ION × 1 SAM S-ADENOSYLMETHIONINE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.00 Å
8RBX Structure of Integrator-PP2A bound to a paused RNA polymerase II-DSIF-NELF-nucleosome complex Deposited 2023-12-05	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 43 PDB declaration: 46-meric	Chain B 78–1251（1174 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1 MN MANGANESE (II) ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
8S51 RNA polymerase II core initially transcribing complex with an ordered RNA of 8 nt Deposited 2024-02-22	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain B 1–1300（1300 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8S52 RNA polymerase II core initially transcribing complex with an ordered RNA of 10 nt Deposited 2024-02-22	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain B 1–1300（1300 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
8S54 RNA polymerase II early elongation complex bound to TFIIE and TFIIF - state b (composite structure) Deposited 2024-02-22	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: 18-meric	Chain B 1–1300（1300 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8S55 RNA polymerase II early elongation complex bound to TFIIE and TFIIF - state a (composite structure) Deposited 2024-02-22	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: 19-meric	Chain B 1–1300（1300 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8S5N RNA polymerase II core initially transcribing complex with an ordered RNA of 12 nt Deposited 2024-02-24	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain B 1–1300（1300 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
9ER2 PolII-TCR-STK19 structure. Deposited 2024-03-22	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 19 PDB declaration: 22-meric	Chain B 1–1167（1167 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
9FD2 Structure of Pol II-TC-NER-STK19 complex Deposited 2024-05-16	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 19 PDB declaration: 22-meric	Chain B 1–1300（1300 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
9MLC Pol II-DSIF-SPT6-PAF1c-TFIIS-IWS1-ELOF1-LEDGF-nucleosome activated elongation complex Composite map T Deposited 2024-12-19	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 24 PDB declaration: 27-meric	Chain B 1–1300（1300 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.40 Å
9RTT Activated Elongation Complex with IWS1 and ELOF1 Deposited 2025-07-03	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 22 PDB declaration: 25-meric	Chain B 78–1251（1174 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.01 Å
9RZE State 2 MAP 3 RNA Pol II activated elongation complex with SETD2 bound to proximal upstream H3 Deposited 2025-07-15	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 31 PDB declaration: 34-meric	Chain B 78–1251（1174 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 8.53 Å
9S0U State 3 MAP 3 RNA Pol II activated elongation complex with SETD2 bound to distal upstream H3 Deposited 2025-07-17	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 32 PDB declaration: 35-meric	Chain B 78–1251（1174 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.72 Å
9S3G State 1 MAP3 RNA Pol II activated elongation complex with SETD2 and upstream hexasome Deposited 2025-07-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 31 PDB declaration: 34-meric	Chain B 78–1251（1174 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.40 Å
9VD9 Cryo-EM structure of the human DSS1-INTAC-PEC complex Deposited 2025-06-07	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Insufficient information Heteromer；Protein × 35 PDB declaration: 38-meric	Chain 2 1–126（126 aa）	Not recorded	ZN ZINC ION × 10 MN MANGANESE (II) ION × 2 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.60 Å

50 other PDB entries and 50 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	I3LGP4_PIG
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 1–1174； UniProt 78–1251

DNA-directed RNA polymerase II subunit RPB3

OrganismNot specified

UniProt I3LCH3

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein–DNA Heteromer Protein × 22 DNA 2 PDB declaration: 24-meric（24） Consistent with all polymer counts	Chain C； UniProt 1–275	Not recorded	DNA-directed RNA polymerase subunit × 1 （A0A8D1DPV6） DNA-directed RNA polymerase subunit beta × 1 （I3LGP4） RNA polymerase II subunit D × 1 （A0A287ADR4） DNA-directed RNA polymerase II subunit E × 1 （I3LSI7） DNA-directed RNA polymerase II subunit F × 1 （F1SKN8） DNA-directed RNA polymerase II subunit RPB7 × 1 （I3LJZ9） DNA-directed RNA polymerases I, II, and III subunit RPABC3 × 1 （A0A4X1ULF2） DNA-directed RNA polymerase II subunit RPB9 × 1 （P60899） DNA-directed RNA polymerases I, II, and III subunit RPABC5 × 1 （A0A4X1VYD0） RNA polymerase II subunit J × 1 （A0A4X1UK25） RNA polymerase II subunit K × 1 （I3LN51） Transcription initiation factor IIB × 1 （Q00403） Non-template strand × 1 TATA-box-binding protein × 1 （P20226） General transcription factor IIF subunit 1 × 1 （P35269） General transcription factor IIF subunit 2 × 1 （P13984） Template strand × 1 Transcription initiation factor IIA subunit 1 × 1 （P52655） Transcription initiation factor IIA subunit 2 × 1 （P52657） snRNA-activating protein complex subunit 1 × 1 （Q16533） snRNA-activating protein complex subunit 3 × 1 （Q92966） snRNA-activating protein complex subunit 4 × 1 （Q5SXM2） snRNA-activating protein complex subunit 5 × 1 （O75971） ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.00 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7ZX8	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
6EXV Structure of mammalian RNA polymerase II elongation complex inhibited by Alpha-amanitin Deposited 2017-11-09	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
6GMH Structure of activated transcription complex Pol II-DSIF-PAF-SPT6 Deposited 2018-05-26	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: heptadecameric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE；10s wait prior to blotting, blotting 8.5s	Resolution 3.10 Å
6GML Structure of paused transcription complex Pol II-DSIF-NELF Deposited 2018-05-27	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 18 PDB declaration: 21-meric	Chain C 1–271（271 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 9	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
6TED Structure of complete, activated transcription complex Pol II-DSIF-PAF-SPT6 uncovers allosteric elongation activation by RTF1 Deposited 2019-11-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 21 PDB declaration: 24-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE；2 microliters applied to both sides of grid. Sample incubated on grid for 10s prior to blotting. Blotting for 8.5s.	Resolution 3.10 Å
7B0Y Structure of a transcribing RNA polymerase II-U1 snRNP complex Deposited 2020-11-23	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 21 PDB declaration: 25-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
7B7U Cryo-EM structure of mammalian RNA polymerase II in complex with human RPAP2 Deposited 2020-12-11	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric	Chain C 1–271（271 aa）	Not recorded	ZN ZINC ION × 6	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7EDX p53-bound TFIID-based core PIC on HDM2 promoter Deposited 2021-03-17	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain q 1–275（275 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.50 Å
7EG7 TFIID-based core PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain q 1–275（275 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.20 Å
7EG8 TFIID-based core PIC on PUMA promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain q 1–275（275 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.40 Å
7EG9 TFIID-based intermediate PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 39 PDB declaration: 41-meric	Chain q 1–275（275 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.70 Å
7EGB TFIID-based holo PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 49 PDB declaration: 51-meric	Chain q 1–275（275 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
7EGC p53-bound TFIID-based holo PIC on HDM2 promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 49 PDB declaration: 51-meric	Chain q 1–275（275 aa）	Not recorded	ZN ZINC ION × 16 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.90 Å
7ENA TFIID-based PIC-Mediator holo-complex in pre-assembled state (pre-hPIC-MED) Deposited 2021-04-16	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 74 PDB declaration: 76-meric	Chain PC 1–275（275 aa）	Not recorded	ZN ZINC ION × 16 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.07 Å
7ENC TFIID-based PIC-Mediator holo-complex in fully-assembled state (hPIC-MED) Deposited 2021-04-16	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 74 PDB declaration: 76-meric	Chain PC 1–275（275 aa）	Not recorded	ZN ZINC ION × 16 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.13 Å
7F4G Structure of RPAP2-bound RNA polymerase II Deposited 2021-06-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 13 PDB declaration: tridecameric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.78 Å
7NVR Human Mediator with RNA Polymerase II Pre-initiation complex Deposited 2021-03-15	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 56 PDB declaration: 58-meric	Chain C 1–275（275 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 18 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.50 Å
7NVS RNA polymerase II core pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7NVT RNA polymerase II core pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7NVU RNA polymerase II core pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
7NVY RNA polymerase II pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain C 1–275（275 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.30 Å
7NVZ RNA polymerase II pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain C 1–275（275 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
7NW0 RNA polymerase II pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain C 1–275（275 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 15 ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 2 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.60 Å
7OKX Structure of active transcription elongation complex Pol II-DSIF (SPT5-KOW5)-ELL2-EAF1 (composite structure) Deposited 2021-05-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain C 1–275（275 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
7OKY Structure of active transcription elongation complex Pol II-DSIF-ELL2-EAF1(composite structure) Deposited 2021-05-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain C 1–275（275 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 9	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.14 Å
7OL0 Structure of active transcription elongation complex Pol II-DSIF (SPT5-KOW5) Deposited 2021-05-18	Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain C 1–275（275 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OO3 Pol II-CSB-CSA-DDB1-UVSSA (Structure1) Deposited 2021-05-26	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 17 PDB declaration: eicosameric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7OOB Pol II-CSB-CSA-DDB1-UVSSA-ADPBeF3 (Structure2) Deposited 2021-05-27	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.70 Å
7OOP Pol II-CSB-CSA-DDB1-UVSSA-PAF-SPT6 (Structure 3) Deposited 2021-05-28	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 23 PDB declaration: 26-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7OPC Pol II-CSB-CRL4CSA-UVSSA-SPT6-PAF (Structure 4) Deposited 2021-05-31	Different oligomeric state Different ligand/ion	Assembly 1 Other combination Heteromer；Protein × 25 PDB declaration: 28-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OPD Pol II-CSB-CRL4CSA-UVSSA-SPT6-PAF (Structure 5) Deposited 2021-05-31	Different oligomeric state Different ligand/ion	Assembly 1 Other combination Heteromer；Protein × 25 PDB declaration: 28-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7ZWD Structure of SNAPc containing Pol II pre-initiation complex bound to U5 snRNA promoter (CC) Deposited 2022-05-19	Parsed fields agree	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7ZX7 Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (CC) Deposited 2022-05-20	Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8A3Y Structure of mammalian Pol II-DSIF-SPT6-PAF1-TFIIS-hexasome elongation complex Deposited 2022-06-09	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Insufficient information Heteromer；Protein × 27 PDB declaration: 30-meric	Chain C 1–270（270 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
8A40 Structure of mammalian Pol II-TFIIS elongation complex Deposited 2022-06-09	Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
8BVW RNA polymerase II pre-initiation complex with the distal +1 nucleosome (PIC-Nuc18W) Deposited 2022-12-20	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 40 PDB declaration: 42-meric	Chain C 1–275（275 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.00 Å
8BYQ RNA polymerase II pre-initiation complex with the proximal +1 nucleosome (PIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 38 PDB declaration: 40-meric	Chain C 1–275（275 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 16 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
8BZ1 RNA polymerase II core pre-initiation complex with the proximal +1 nucleosome (cPIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 26 PDB declaration: 28-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8GXQ PIC-Mediator in complex with +1 nucleosome (T40N) in MH-binding state Deposited 2022-09-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 83 PDB declaration: 87-meric	Chain PC 1–275（275 aa）	Not recorded	ZN ZINC ION × 19 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.04 Å
8GXS PIC-Mediator in complex with +1 nucleosome (T40N) in H-binding state Deposited 2022-09-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 83 PDB declaration: 87-meric	Chain PC 1–275（275 aa）	Not recorded	ZN ZINC ION × 19 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.16 Å
8OEU Structure of the mammalian Pol II-SPT6 complex (composite structure, Structure 4) Deposited 2023-03-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain C 1–275（275 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.04 Å
8OEV Structure of the mammalian Pol II-SPT6-Elongin complex, lacking ELOA latch (composite structure, structure 3) Deposited 2023-03-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain C 1–275（275 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.86 Å
8OEW Structure of the mammalian Pol II-Elongin complex, lacking the ELOA latch (composite structure, structure 2) Deposited 2023-03-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain C 1–275（275 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
8OF0 Structure of the mammalian Pol II-SPT6-Elongin complex, Structure 1 Deposited 2023-03-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain C 1–275（275 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.05 Å
8P4A Structural insights into human co-transcriptional capping - structure 1 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain C 1–275（275 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8P4B Structural insights into human co-transcriptional capping - structure 2 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
8P4C Structural insights into human co-transcriptional capping - structure 3 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 3 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8P4D Structural insights into human co-transcriptional capping - structure 4 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8P4E Structural insights into human co-transcriptional capping - structure 5 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain C 1–275（275 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.90 Å
8P4F Structural insights into human co-transcriptional capping - structure 6 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain C 1–275（275 aa）	Not recorded	MGT 7N-METHYL-8-HYDROGUANOSINE-5'-TRIPHOSPHATE × 1 ZN ZINC ION × 8 MG MAGNESIUM ION × 1 SAM S-ADENOSYLMETHIONINE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.00 Å
8QEP RNA polymerase II bound to Alu RNA right arm Deposited 2023-09-01	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: 11-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.25 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
8QEQ RNA polymerase II bound to minimal Alu RNA right arm in the alternative conformation Deposited 2023-09-01	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–RNA Heteromer；Protein × 10 PDB declaration: 11-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 7 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.25 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8RBX Structure of Integrator-PP2A bound to a paused RNA polymerase II-DSIF-NELF-nucleosome complex Deposited 2023-12-05	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 43 PDB declaration: 46-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1 MN MANGANESE (II) ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
8S51 RNA polymerase II core initially transcribing complex with an ordered RNA of 8 nt Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8S52 RNA polymerase II core initially transcribing complex with an ordered RNA of 10 nt Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
8S54 RNA polymerase II early elongation complex bound to TFIIE and TFIIF - state b (composite structure) Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: 18-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8S55 RNA polymerase II early elongation complex bound to TFIIE and TFIIF - state a (composite structure) Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: 19-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8S5N RNA polymerase II core initially transcribing complex with an ordered RNA of 12 nt Deposited 2024-02-24	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8WAK Structure of transcribing complex 2 (TC2), the initially transcribing complex with Pol II positioned 2nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain q 1–275（275 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.47 Å
8WAL Structure of transcribing complex 3 (TC3), the initially transcribing complex with Pol II positioned 3nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain q 1–275（275 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 8.52 Å
8WAN Structure of transcribing complex 4 (TC4), the initially transcribing complex with Pol II positioned 4nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain q 1–275（275 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.07 Å
8WAO Structure of transcribing complex 5 (TC5), the initially transcribing complex with Pol II positioned 5nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain q 1–275（275 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.40 Å
8WAP Structure of transcribing complex 6 (TC6), the initially transcribing complex with Pol II positioned 6nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain q 1–275（275 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.85 Å
8WAQ Structure of transcribing complex 7 (TC7), the initially transcribing complex with Pol II positioned 7nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain q 1–275（275 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.29 Å
8WAR Structure of transcribing complex 8 (TC8), the initially transcribing complex with Pol II positioned 8nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain q 1–275（275 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
8WAS Structure of transcribing complex 9 (TC9), the initially transcribing complex with Pol II positioned 9nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain q 1–275（275 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.13 Å
8WAT De novo transcribing complex 10 (TC10), the early elongation complex with Pol II positioned 10nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain q 1–275（275 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.82 Å
8WAU De novo transcribing complex 11 (TC11), the early elongation complex with Pol II positioned 11nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain q 1–275（275 aa）	Not recorded	W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1 ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.78 Å
8WAV De novo transcribing complex 12 (TC12), the early elongation complex with Pol II positioned 12nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain q 1–275（275 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.72 Å
8WAW De novo transcribing complex 13 (TC13), the early elongation complex with Pol II positioned 13nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain q 1–275（275 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.02 Å
8WAX De novo transcribing complex 14 (TC14), the early elongation complex with Pol II positioned 14nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain q 1–275（275 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.75 Å
8WAY De novo transcribing complex 15 (TC15), the early elongation complex with Pol II positioned 15nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain q 1–275（275 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.85 Å
8WAZ De novo transcribing complex 16 (TC16), the early elongation complex with Pol II positioned 16nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain q 1–275（275 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.76 Å
8WB0 De novo transcribing complex 17 (TC17), the early elongation complex with Pol II positioned 17nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain q 1–275（275 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.94 Å
9ER2 PolII-TCR-STK19 structure. Deposited 2024-03-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 19 PDB declaration: 22-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
9FD2 Structure of Pol II-TC-NER-STK19 complex Deposited 2024-05-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 19 PDB declaration: 22-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
9FYX Influenza A/H7N9 polymerase pre-cleavage cap-snatching complex Deposited 2024-07-04	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 18 PDB declaration: 23-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 9 G1G 7-METHYL-GUANOSINE-5'-TRIPHOSPHATE-5'-(2'-O-METHYL)-GUANOSINE × 1 MG MAGNESIUM ION × 2 PO4 PHOSPHATE ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 8；20 mM BICINE pH 8.0 150 mM NaCl 0.1 mM MgCl2 4% glycerol cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
9G0A Influenza A/H7N9 polymerase post-cleavage cap-snatching complex Deposited 2024-07-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 18 PDB declaration: 23-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 2 G1G 7-METHYL-GUANOSINE-5'-TRIPHOSPHATE-5'-(2'-O-METHYL)-GUANOSINE × 1 PO4 PHOSPHATE ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 8；20 mM BICINE pH 8.0 150 mM NaCl 3 mM MgCl2 4% glycerol cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
9HVO Structure of the transcribing Pol II-RECQL5 complex Deposited 2024-12-31	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: 16-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；20 mM HEPES pH 7.5, 100 mM NaCl, 3 mM MgCl2, 1 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
9HVQ Structure of the transcribing Pol II-DSIF-PAF-SPT6-RECQL5 complex Deposited 2024-12-31	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 21 PDB declaration: 24-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；20 mM HEPES pH 7.5, 50 mM KCl, 4 mM MgCl2, 1 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.00 Å
9HWG Structure of the transcribing Pol II-TCR-RECQL5 complex Deposited 2025-01-03	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 18 PDB declaration: 21-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；20 mM HEPES pH 7.5, 50 mM KCl, 4 mM MgCl2, 1 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
9QEQ Structure of the transcribing Pol II-DSIF-SPT6-U1 snRNP complex Deposited 2025-03-10	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 24 PDB declaration: 28-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；20 mM Hepes, 100 mM NaCl, 3 mM MgCl2, 0.5 mM TCEP cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
9RTT Activated Elongation Complex with IWS1 and ELOF1 Deposited 2025-07-03	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 22 PDB declaration: 25-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.01 Å
9RZE State 2 MAP 3 RNA Pol II activated elongation complex with SETD2 bound to proximal upstream H3 Deposited 2025-07-15	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 31 PDB declaration: 34-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 8.53 Å
9S0U State 3 MAP 3 RNA Pol II activated elongation complex with SETD2 bound to distal upstream H3 Deposited 2025-07-17	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 32 PDB declaration: 35-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.72 Å
9S3G State 1 MAP3 RNA Pol II activated elongation complex with SETD2 and upstream hexasome Deposited 2025-07-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 31 PDB declaration: 34-meric	Chain C 1–275（275 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.40 Å

85 other PDB entries and 85 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	I3LCH3_PIG
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain C； PDBConstruct 1–275； UniProt 1–275

RNA polymerase II subunit D

OrganismNot specified

UniProt A0A287ADR4

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein–DNA Heteromer Protein × 22 DNA 2 PDB declaration: 24-meric（24） Consistent with all polymer counts	Chain D； UniProt 43–184	Not recorded	DNA-directed RNA polymerase subunit × 1 （A0A8D1DPV6） DNA-directed RNA polymerase subunit beta × 1 （I3LGP4） DNA-directed RNA polymerase II subunit RPB3 × 1 （I3LCH3） DNA-directed RNA polymerase II subunit E × 1 （I3LSI7） DNA-directed RNA polymerase II subunit F × 1 （F1SKN8） DNA-directed RNA polymerase II subunit RPB7 × 1 （I3LJZ9） DNA-directed RNA polymerases I, II, and III subunit RPABC3 × 1 （A0A4X1ULF2） DNA-directed RNA polymerase II subunit RPB9 × 1 （P60899） DNA-directed RNA polymerases I, II, and III subunit RPABC5 × 1 （A0A4X1VYD0） RNA polymerase II subunit J × 1 （A0A4X1UK25） RNA polymerase II subunit K × 1 （I3LN51） Transcription initiation factor IIB × 1 （Q00403） Non-template strand × 1 TATA-box-binding protein × 1 （P20226） General transcription factor IIF subunit 1 × 1 （P35269） General transcription factor IIF subunit 2 × 1 （P13984） Template strand × 1 Transcription initiation factor IIA subunit 1 × 1 （P52655） Transcription initiation factor IIA subunit 2 × 1 （P52657） snRNA-activating protein complex subunit 1 × 1 （Q16533） snRNA-activating protein complex subunit 3 × 1 （Q92966） snRNA-activating protein complex subunit 4 × 1 （Q5SXM2） snRNA-activating protein complex subunit 5 × 1 （O75971） ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.00 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7ZX8	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
6EXV Structure of mammalian RNA polymerase II elongation complex inhibited by Alpha-amanitin Deposited 2017-11-09	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain D 1–142（142 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
6GMH Structure of activated transcription complex Pol II-DSIF-PAF-SPT6 Deposited 2018-05-26	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: heptadecameric	Chain D 1–142（142 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE；10s wait prior to blotting, blotting 8.5s	Resolution 3.10 Å
6GML Structure of paused transcription complex Pol II-DSIF-NELF Deposited 2018-05-27	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 18 PDB declaration: 21-meric	Chain D 1–142（142 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 9	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
6TED Structure of complete, activated transcription complex Pol II-DSIF-PAF-SPT6 uncovers allosteric elongation activation by RTF1 Deposited 2019-11-11	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 21 PDB declaration: 24-meric	Chain D 1–142（142 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE；2 microliters applied to both sides of grid. Sample incubated on grid for 10s prior to blotting. Blotting for 8.5s.	Resolution 3.10 Å
7B0Y Structure of a transcribing RNA polymerase II-U1 snRNP complex Deposited 2020-11-23	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 21 PDB declaration: 25-meric	Chain D 43–184（142 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
7NVR Human Mediator with RNA Polymerase II Pre-initiation complex Deposited 2021-03-15	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 56 PDB declaration: 58-meric	Chain D 43–184（142 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 18 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.50 Å
7NVS RNA polymerase II core pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain D 43–184（142 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7NVT RNA polymerase II core pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain D 43–184（142 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7NVU RNA polymerase II core pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain D 43–184（142 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
7NVY RNA polymerase II pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain D 43–184（142 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.30 Å
7NVZ RNA polymerase II pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain D 43–184（142 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
7NW0 RNA polymerase II pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain D 43–184（142 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 15 ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 2 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.60 Å
7OKX Structure of active transcription elongation complex Pol II-DSIF (SPT5-KOW5)-ELL2-EAF1 (composite structure) Deposited 2021-05-18	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain D 1–184（184 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
7OKY Structure of active transcription elongation complex Pol II-DSIF-ELL2-EAF1(composite structure) Deposited 2021-05-18	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain D 1–184（184 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 9	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.14 Å
7OL0 Structure of active transcription elongation complex Pol II-DSIF (SPT5-KOW5) Deposited 2021-05-18	Different construct Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain D 1–184（184 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OO3 Pol II-CSB-CSA-DDB1-UVSSA (Structure1) Deposited 2021-05-26	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 17 PDB declaration: eicosameric	Chain D 43–184（142 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7OOB Pol II-CSB-CSA-DDB1-UVSSA-ADPBeF3 (Structure2) Deposited 2021-05-27	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain D 43–184（142 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.70 Å
7OOP Pol II-CSB-CSA-DDB1-UVSSA-PAF-SPT6 (Structure 3) Deposited 2021-05-28	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 23 PDB declaration: 26-meric	Chain D 43–184（142 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7OPC Pol II-CSB-CRL4CSA-UVSSA-SPT6-PAF (Structure 4) Deposited 2021-05-31	Different oligomeric state Different ligand/ion	Assembly 1 Other combination Heteromer；Protein × 25 PDB declaration: 28-meric	Chain D 43–184（142 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OPD Pol II-CSB-CRL4CSA-UVSSA-SPT6-PAF (Structure 5) Deposited 2021-05-31	Different oligomeric state Different ligand/ion	Assembly 1 Other combination Heteromer；Protein × 25 PDB declaration: 28-meric	Chain D 43–184（142 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OZN RNA Polymerase II dimer (Class 1) Deposited 2021-06-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric	Chain D 43–184（142 aa） Chain P 43–184（142 aa）	Not recorded	ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
7OZO RNA Polymerase II dimer (Class 2) Deposited 2021-06-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric	Chain D 43–184（142 aa） Chain P 43–184（142 aa）	Not recorded	ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
7OZP RNA Polymerase II dimer (Class 3) Deposited 2021-06-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric	Chain D 43–184（142 aa） Chain P 43–184（142 aa）	Not recorded	ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
7PKS Structural basis of Integrator-mediated transcription regulation Deposited 2021-08-26	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 30 PDB declaration: 31-meric	Chain D 43–184（142 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 10 MN MANGANESE (II) ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
7ZWD Structure of SNAPc containing Pol II pre-initiation complex bound to U5 snRNA promoter (CC) Deposited 2022-05-19	Parsed fields agree	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain D 43–184（142 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7ZX7 Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (CC) Deposited 2022-05-20	Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain D 43–184（142 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8A3Y Structure of mammalian Pol II-DSIF-SPT6-PAF1-TFIIS-hexasome elongation complex Deposited 2022-06-09	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Insufficient information Heteromer；Protein × 27 PDB declaration: 30-meric	Chain D 43–184（142 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
8A40 Structure of mammalian Pol II-TFIIS elongation complex Deposited 2022-06-09	Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain D 43–184（142 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
8B3D Structure of the Pol II-TCR-ELOF1 complex. Deposited 2022-09-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 17 PDB declaration: eicosameric	Chain D 43–184（142 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.60 Å
8B3F Pol II-CSB-CSA-DDB1-ELOF1 Deposited 2022-09-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain D 43–184（142 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8BVW RNA polymerase II pre-initiation complex with the distal +1 nucleosome (PIC-Nuc18W) Deposited 2022-12-20	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 40 PDB declaration: 42-meric	Chain D 43–184（142 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.00 Å
8BYQ RNA polymerase II pre-initiation complex with the proximal +1 nucleosome (PIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 38 PDB declaration: 40-meric	Chain D 43–184（142 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 16 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
8BZ1 RNA polymerase II core pre-initiation complex with the proximal +1 nucleosome (cPIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 26 PDB declaration: 28-meric	Chain D 43–184（142 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8OEU Structure of the mammalian Pol II-SPT6 complex (composite structure, Structure 4) Deposited 2023-03-13	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain D 1–184（184 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.04 Å
8OEV Structure of the mammalian Pol II-SPT6-Elongin complex, lacking ELOA latch (composite structure, structure 3) Deposited 2023-03-13	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain D 1–184（184 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.86 Å
8OEW Structure of the mammalian Pol II-Elongin complex, lacking the ELOA latch (composite structure, structure 2) Deposited 2023-03-13	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain D 1–184（184 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
8OF0 Structure of the mammalian Pol II-SPT6-Elongin complex, Structure 1 Deposited 2023-03-13	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain D 1–184（184 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.05 Å
8P4A Structural insights into human co-transcriptional capping - structure 1 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain D 43–184（142 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8P4B Structural insights into human co-transcriptional capping - structure 2 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain D 43–184（142 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
8P4C Structural insights into human co-transcriptional capping - structure 3 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain D 43–184（142 aa）	Not recorded	ZN ZINC ION × 3 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8P4D Structural insights into human co-transcriptional capping - structure 4 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain D 43–184（142 aa）	Not recorded	ZN ZINC ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8P4E Structural insights into human co-transcriptional capping - structure 5 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain D 43–184（142 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.90 Å
8P4F Structural insights into human co-transcriptional capping - structure 6 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain D 43–184（142 aa）	Not recorded	MGT 7N-METHYL-8-HYDROGUANOSINE-5'-TRIPHOSPHATE × 1 ZN ZINC ION × 8 MG MAGNESIUM ION × 1 SAM S-ADENOSYLMETHIONINE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.00 Å
8RBX Structure of Integrator-PP2A bound to a paused RNA polymerase II-DSIF-NELF-nucleosome complex Deposited 2023-12-05	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 43 PDB declaration: 46-meric	Chain D 43–184（142 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1 MN MANGANESE (II) ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
8S51 RNA polymerase II core initially transcribing complex with an ordered RNA of 8 nt Deposited 2024-02-22	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain D 1–184（184 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8S52 RNA polymerase II core initially transcribing complex with an ordered RNA of 10 nt Deposited 2024-02-22	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain D 1–184（184 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
8S54 RNA polymerase II early elongation complex bound to TFIIE and TFIIF - state b (composite structure) Deposited 2024-02-22	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: 18-meric	Chain D 1–184（184 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8S55 RNA polymerase II early elongation complex bound to TFIIE and TFIIF - state a (composite structure) Deposited 2024-02-22	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: 19-meric	Chain D 1–184（184 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8S5N RNA polymerase II core initially transcribing complex with an ordered RNA of 12 nt Deposited 2024-02-24	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain D 1–184（184 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
9ER2 PolII-TCR-STK19 structure. Deposited 2024-03-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 19 PDB declaration: 22-meric	Chain D 43–184（142 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
9FYX Influenza A/H7N9 polymerase pre-cleavage cap-snatching complex Deposited 2024-07-04	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 18 PDB declaration: 23-meric	Chain D 1–184（184 aa）	Not recorded	ZN ZINC ION × 9 G1G 7-METHYL-GUANOSINE-5'-TRIPHOSPHATE-5'-(2'-O-METHYL)-GUANOSINE × 1 MG MAGNESIUM ION × 2 PO4 PHOSPHATE ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 8；20 mM BICINE pH 8.0 150 mM NaCl 0.1 mM MgCl2 4% glycerol cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
9G0A Influenza A/H7N9 polymerase post-cleavage cap-snatching complex Deposited 2024-07-07	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 18 PDB declaration: 23-meric	Chain D 1–184（184 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 2 G1G 7-METHYL-GUANOSINE-5'-TRIPHOSPHATE-5'-(2'-O-METHYL)-GUANOSINE × 1 PO4 PHOSPHATE ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 8；20 mM BICINE pH 8.0 150 mM NaCl 3 mM MgCl2 4% glycerol cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
9RTN State 2 MAP 2 SPT6 with SETD2 Deposited 2025-07-03	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric	Chain D 43–184（142 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.82 Å
9RTT Activated Elongation Complex with IWS1 and ELOF1 Deposited 2025-07-03	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 22 PDB declaration: 25-meric	Chain D 43–184（142 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.01 Å
9RZD State 3 MAP 2 SPT6 with SETD2 Deposited 2025-07-15	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric	Chain D 43–184（142 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.69 Å
9RZE State 2 MAP 3 RNA Pol II activated elongation complex with SETD2 bound to proximal upstream H3 Deposited 2025-07-15	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 31 PDB declaration: 34-meric	Chain D 43–184（142 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 8.53 Å
9S0U State 3 MAP 3 RNA Pol II activated elongation complex with SETD2 bound to distal upstream H3 Deposited 2025-07-17	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 32 PDB declaration: 35-meric	Chain D 43–184（142 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.72 Å
9S3G State 1 MAP3 RNA Pol II activated elongation complex with SETD2 and upstream hexasome Deposited 2025-07-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 31 PDB declaration: 34-meric	Chain D 43–184（142 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.40 Å

58 other PDB entries and 58 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	A0A287ADR4_PIG
Isoform	—
PDB entities	4
Chains and sequence ranges	Author chain D； PDBConstruct 1–142； UniProt 43–184

DNA-directed RNA polymerase II subunit E

OrganismNot specified

UniProt I3LSI7

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein–DNA Heteromer Protein × 22 DNA 2 PDB declaration: 24-meric（24） Consistent with all polymer counts	Chain E； UniProt 1–210	Not recorded	DNA-directed RNA polymerase subunit × 1 （A0A8D1DPV6） DNA-directed RNA polymerase subunit beta × 1 （I3LGP4） DNA-directed RNA polymerase II subunit RPB3 × 1 （I3LCH3） RNA polymerase II subunit D × 1 （A0A287ADR4） DNA-directed RNA polymerase II subunit F × 1 （F1SKN8） DNA-directed RNA polymerase II subunit RPB7 × 1 （I3LJZ9） DNA-directed RNA polymerases I, II, and III subunit RPABC3 × 1 （A0A4X1ULF2） DNA-directed RNA polymerase II subunit RPB9 × 1 （P60899） DNA-directed RNA polymerases I, II, and III subunit RPABC5 × 1 （A0A4X1VYD0） RNA polymerase II subunit J × 1 （A0A4X1UK25） RNA polymerase II subunit K × 1 （I3LN51） Transcription initiation factor IIB × 1 （Q00403） Non-template strand × 1 TATA-box-binding protein × 1 （P20226） General transcription factor IIF subunit 1 × 1 （P35269） General transcription factor IIF subunit 2 × 1 （P13984） Template strand × 1 Transcription initiation factor IIA subunit 1 × 1 （P52655） Transcription initiation factor IIA subunit 2 × 1 （P52657） snRNA-activating protein complex subunit 1 × 1 （Q16533） snRNA-activating protein complex subunit 3 × 1 （Q92966） snRNA-activating protein complex subunit 4 × 1 （Q5SXM2） snRNA-activating protein complex subunit 5 × 1 （O75971） ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.00 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7ZX8	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
6EXV Structure of mammalian RNA polymerase II elongation complex inhibited by Alpha-amanitin Deposited 2017-11-09	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
6GMH Structure of activated transcription complex Pol II-DSIF-PAF-SPT6 Deposited 2018-05-26	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: heptadecameric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE；10s wait prior to blotting, blotting 8.5s	Resolution 3.10 Å
6GML Structure of paused transcription complex Pol II-DSIF-NELF Deposited 2018-05-27	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 18 PDB declaration: 21-meric	Chain E 1–210（210 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 9	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
6TED Structure of complete, activated transcription complex Pol II-DSIF-PAF-SPT6 uncovers allosteric elongation activation by RTF1 Deposited 2019-11-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 21 PDB declaration: 24-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE；2 microliters applied to both sides of grid. Sample incubated on grid for 10s prior to blotting. Blotting for 8.5s.	Resolution 3.10 Å
7B0Y Structure of a transcribing RNA polymerase II-U1 snRNP complex Deposited 2020-11-23	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 21 PDB declaration: 25-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
7B7U Cryo-EM structure of mammalian RNA polymerase II in complex with human RPAP2 Deposited 2020-12-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 6	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7EG7 TFIID-based core PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain s 1–210（210 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.20 Å
7EG8 TFIID-based core PIC on PUMA promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain s 1–210（210 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.40 Å
7EG9 TFIID-based intermediate PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 39 PDB declaration: 41-meric	Chain s 1–210（210 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.70 Å
7NVR Human Mediator with RNA Polymerase II Pre-initiation complex Deposited 2021-03-15	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 56 PDB declaration: 58-meric	Chain E 1–210（210 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 18 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.50 Å
7NVS RNA polymerase II core pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7NVT RNA polymerase II core pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7NVU RNA polymerase II core pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
7NVY RNA polymerase II pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain E 1–210（210 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.30 Å
7NVZ RNA polymerase II pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain E 1–210（210 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
7NW0 RNA polymerase II pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain E 1–210（210 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 15 ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 2 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.60 Å
7OKX Structure of active transcription elongation complex Pol II-DSIF (SPT5-KOW5)-ELL2-EAF1 (composite structure) Deposited 2021-05-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain E 1–210（210 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
7OKY Structure of active transcription elongation complex Pol II-DSIF-ELL2-EAF1(composite structure) Deposited 2021-05-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain E 1–210（210 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 9	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.14 Å
7OL0 Structure of active transcription elongation complex Pol II-DSIF (SPT5-KOW5) Deposited 2021-05-18	Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain E 1–210（210 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OO3 Pol II-CSB-CSA-DDB1-UVSSA (Structure1) Deposited 2021-05-26	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 17 PDB declaration: eicosameric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7OOB Pol II-CSB-CSA-DDB1-UVSSA-ADPBeF3 (Structure2) Deposited 2021-05-27	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.70 Å
7OOP Pol II-CSB-CSA-DDB1-UVSSA-PAF-SPT6 (Structure 3) Deposited 2021-05-28	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 23 PDB declaration: 26-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7OPC Pol II-CSB-CRL4CSA-UVSSA-SPT6-PAF (Structure 4) Deposited 2021-05-31	Different oligomeric state Different ligand/ion	Assembly 1 Other combination Heteromer；Protein × 25 PDB declaration: 28-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OPD Pol II-CSB-CRL4CSA-UVSSA-SPT6-PAF (Structure 5) Deposited 2021-05-31	Different oligomeric state Different ligand/ion	Assembly 1 Other combination Heteromer；Protein × 25 PDB declaration: 28-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OZN RNA Polymerase II dimer (Class 1) Deposited 2021-06-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric	Chain E 1–210（210 aa） Chain Q 1–210（210 aa）	Not recorded	ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
7OZO RNA Polymerase II dimer (Class 2) Deposited 2021-06-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric	Chain E 1–210（210 aa） Chain Q 1–210（210 aa）	Not recorded	ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
7OZP RNA Polymerase II dimer (Class 3) Deposited 2021-06-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric	Chain E 1–210（210 aa） Chain Q 1–210（210 aa）	Not recorded	ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
7PKS Structural basis of Integrator-mediated transcription regulation Deposited 2021-08-26	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 30 PDB declaration: 31-meric	Chain E 1–210（210 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 10 MN MANGANESE (II) ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
7ZWD Structure of SNAPc containing Pol II pre-initiation complex bound to U5 snRNA promoter (CC) Deposited 2022-05-19	Parsed fields agree	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7ZX7 Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (CC) Deposited 2022-05-20	Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8A3Y Structure of mammalian Pol II-DSIF-SPT6-PAF1-TFIIS-hexasome elongation complex Deposited 2022-06-09	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Insufficient information Heteromer；Protein × 27 PDB declaration: 30-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
8B3D Structure of the Pol II-TCR-ELOF1 complex. Deposited 2022-09-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 17 PDB declaration: eicosameric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.60 Å
8B3F Pol II-CSB-CSA-DDB1-ELOF1 Deposited 2022-09-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8BVW RNA polymerase II pre-initiation complex with the distal +1 nucleosome (PIC-Nuc18W) Deposited 2022-12-20	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 40 PDB declaration: 42-meric	Chain E 1–210（210 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.00 Å
8BYQ RNA polymerase II pre-initiation complex with the proximal +1 nucleosome (PIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 38 PDB declaration: 40-meric	Chain E 1–210（210 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 16 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
8BZ1 RNA polymerase II core pre-initiation complex with the proximal +1 nucleosome (cPIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 26 PDB declaration: 28-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8OEU Structure of the mammalian Pol II-SPT6 complex (composite structure, Structure 4) Deposited 2023-03-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain E 1–210（210 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.04 Å
8OEV Structure of the mammalian Pol II-SPT6-Elongin complex, lacking ELOA latch (composite structure, structure 3) Deposited 2023-03-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain E 1–210（210 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.86 Å
8OEW Structure of the mammalian Pol II-Elongin complex, lacking the ELOA latch (composite structure, structure 2) Deposited 2023-03-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain E 1–210（210 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
8OF0 Structure of the mammalian Pol II-SPT6-Elongin complex, Structure 1 Deposited 2023-03-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain E 1–210（210 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.05 Å
8P4A Structural insights into human co-transcriptional capping - structure 1 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain E 1–210（210 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8P4B Structural insights into human co-transcriptional capping - structure 2 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
8P4C Structural insights into human co-transcriptional capping - structure 3 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 3 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8P4D Structural insights into human co-transcriptional capping - structure 4 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8P4E Structural insights into human co-transcriptional capping - structure 5 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain E 1–210（210 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.90 Å
8P4F Structural insights into human co-transcriptional capping - structure 6 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain E 1–210（210 aa）	Not recorded	MGT 7N-METHYL-8-HYDROGUANOSINE-5'-TRIPHOSPHATE × 1 ZN ZINC ION × 8 MG MAGNESIUM ION × 1 SAM S-ADENOSYLMETHIONINE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.00 Å
8QEP RNA polymerase II bound to Alu RNA right arm Deposited 2023-09-01	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: 11-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.25 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
8QEQ RNA polymerase II bound to minimal Alu RNA right arm in the alternative conformation Deposited 2023-09-01	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–RNA Heteromer；Protein × 10 PDB declaration: 11-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 7 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.25 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8RBX Structure of Integrator-PP2A bound to a paused RNA polymerase II-DSIF-NELF-nucleosome complex Deposited 2023-12-05	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 43 PDB declaration: 46-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1 MN MANGANESE (II) ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
8S51 RNA polymerase II core initially transcribing complex with an ordered RNA of 8 nt Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8S52 RNA polymerase II core initially transcribing complex with an ordered RNA of 10 nt Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
8S54 RNA polymerase II early elongation complex bound to TFIIE and TFIIF - state b (composite structure) Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: 18-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8S55 RNA polymerase II early elongation complex bound to TFIIE and TFIIF - state a (composite structure) Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: 19-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8S5N RNA polymerase II core initially transcribing complex with an ordered RNA of 12 nt Deposited 2024-02-24	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
9ER2 PolII-TCR-STK19 structure. Deposited 2024-03-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 19 PDB declaration: 22-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
9FD2 Structure of Pol II-TC-NER-STK19 complex Deposited 2024-05-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 19 PDB declaration: 22-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
9FYX Influenza A/H7N9 polymerase pre-cleavage cap-snatching complex Deposited 2024-07-04	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 18 PDB declaration: 23-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 9 G1G 7-METHYL-GUANOSINE-5'-TRIPHOSPHATE-5'-(2'-O-METHYL)-GUANOSINE × 1 MG MAGNESIUM ION × 2 PO4 PHOSPHATE ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 8；20 mM BICINE pH 8.0 150 mM NaCl 0.1 mM MgCl2 4% glycerol cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
9G0A Influenza A/H7N9 polymerase post-cleavage cap-snatching complex Deposited 2024-07-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 18 PDB declaration: 23-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 2 G1G 7-METHYL-GUANOSINE-5'-TRIPHOSPHATE-5'-(2'-O-METHYL)-GUANOSINE × 1 PO4 PHOSPHATE ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 8；20 mM BICINE pH 8.0 150 mM NaCl 3 mM MgCl2 4% glycerol cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
9HVO Structure of the transcribing Pol II-RECQL5 complex Deposited 2024-12-31	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: 16-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；20 mM HEPES pH 7.5, 100 mM NaCl, 3 mM MgCl2, 1 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
9HVQ Structure of the transcribing Pol II-DSIF-PAF-SPT6-RECQL5 complex Deposited 2024-12-31	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 21 PDB declaration: 24-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；20 mM HEPES pH 7.5, 50 mM KCl, 4 mM MgCl2, 1 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.00 Å
9HWG Structure of the transcribing Pol II-TCR-RECQL5 complex Deposited 2025-01-03	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 18 PDB declaration: 21-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；20 mM HEPES pH 7.5, 50 mM KCl, 4 mM MgCl2, 1 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
9QEQ Structure of the transcribing Pol II-DSIF-SPT6-U1 snRNP complex Deposited 2025-03-10	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 24 PDB declaration: 28-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；20 mM Hepes, 100 mM NaCl, 3 mM MgCl2, 0.5 mM TCEP cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
9RTT Activated Elongation Complex with IWS1 and ELOF1 Deposited 2025-07-03	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 22 PDB declaration: 25-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.01 Å
9RZE State 2 MAP 3 RNA Pol II activated elongation complex with SETD2 bound to proximal upstream H3 Deposited 2025-07-15	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 31 PDB declaration: 34-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 8.53 Å
9S0U State 3 MAP 3 RNA Pol II activated elongation complex with SETD2 bound to distal upstream H3 Deposited 2025-07-17	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 32 PDB declaration: 35-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.72 Å
9S3G State 1 MAP3 RNA Pol II activated elongation complex with SETD2 and upstream hexasome Deposited 2025-07-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 31 PDB declaration: 34-meric	Chain E 1–210（210 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.40 Å

66 other PDB entries and 66 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	I3LSI7_PIG
Isoform	—
PDB entities	5
Chains and sequence ranges	Author chain E； PDBConstruct 1–210； UniProt 1–210

DNA-directed RNA polymerase II subunit F

OrganismNot specified

UniProt F1SKN8

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein–DNA Heteromer Protein × 22 DNA 2 PDB declaration: 24-meric（24） Consistent with all polymer counts	Chain F； UniProt 1–127	Not recorded	DNA-directed RNA polymerase subunit × 1 （A0A8D1DPV6） DNA-directed RNA polymerase subunit beta × 1 （I3LGP4） DNA-directed RNA polymerase II subunit RPB3 × 1 （I3LCH3） RNA polymerase II subunit D × 1 （A0A287ADR4） DNA-directed RNA polymerase II subunit E × 1 （I3LSI7） DNA-directed RNA polymerase II subunit RPB7 × 1 （I3LJZ9） DNA-directed RNA polymerases I, II, and III subunit RPABC3 × 1 （A0A4X1ULF2） DNA-directed RNA polymerase II subunit RPB9 × 1 （P60899） DNA-directed RNA polymerases I, II, and III subunit RPABC5 × 1 （A0A4X1VYD0） RNA polymerase II subunit J × 1 （A0A4X1UK25） RNA polymerase II subunit K × 1 （I3LN51） Transcription initiation factor IIB × 1 （Q00403） Non-template strand × 1 TATA-box-binding protein × 1 （P20226） General transcription factor IIF subunit 1 × 1 （P35269） General transcription factor IIF subunit 2 × 1 （P13984） Template strand × 1 Transcription initiation factor IIA subunit 1 × 1 （P52655） Transcription initiation factor IIA subunit 2 × 1 （P52657） snRNA-activating protein complex subunit 1 × 1 （Q16533） snRNA-activating protein complex subunit 3 × 1 （Q92966） snRNA-activating protein complex subunit 4 × 1 （Q5SXM2） snRNA-activating protein complex subunit 5 × 1 （O75971） ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.00 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7ZX8	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
6EXV Structure of mammalian RNA polymerase II elongation complex inhibited by Alpha-amanitin Deposited 2017-11-09	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain F 1–127（127 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
6GMH Structure of activated transcription complex Pol II-DSIF-PAF-SPT6 Deposited 2018-05-26	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: heptadecameric	Chain F 1–127（127 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE；10s wait prior to blotting, blotting 8.5s	Resolution 3.10 Å
6GML Structure of paused transcription complex Pol II-DSIF-NELF Deposited 2018-05-27	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 18 PDB declaration: 21-meric	Chain F 1–127（127 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 9	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
6TED Structure of complete, activated transcription complex Pol II-DSIF-PAF-SPT6 uncovers allosteric elongation activation by RTF1 Deposited 2019-11-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 21 PDB declaration: 24-meric	Chain F 1–127（127 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE；2 microliters applied to both sides of grid. Sample incubated on grid for 10s prior to blotting. Blotting for 8.5s.	Resolution 3.10 Å
7B0Y Structure of a transcribing RNA polymerase II-U1 snRNP complex Deposited 2020-11-23	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 21 PDB declaration: 25-meric	Chain F 1–127（127 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
7B7U Cryo-EM structure of mammalian RNA polymerase II in complex with human RPAP2 Deposited 2020-12-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric	Chain F 1–127（127 aa）	Not recorded	ZN ZINC ION × 6	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7NVR Human Mediator with RNA Polymerase II Pre-initiation complex Deposited 2021-03-15	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 56 PDB declaration: 58-meric	Chain F 1–127（127 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 18 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.50 Å
7NVS RNA polymerase II core pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain F 1–127（127 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7NVT RNA polymerase II core pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain F 1–127（127 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7NVU RNA polymerase II core pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain F 1–127（127 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
7NVY RNA polymerase II pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain F 1–127（127 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.30 Å
7NVZ RNA polymerase II pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain F 1–127（127 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
7NW0 RNA polymerase II pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain F 1–127（127 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 15 ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 2 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.60 Å
7OKX Structure of active transcription elongation complex Pol II-DSIF (SPT5-KOW5)-ELL2-EAF1 (composite structure) Deposited 2021-05-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain F 1–127（127 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
7OKY Structure of active transcription elongation complex Pol II-DSIF-ELL2-EAF1(composite structure) Deposited 2021-05-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain F 1–127（127 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 9	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.14 Å
7OL0 Structure of active transcription elongation complex Pol II-DSIF (SPT5-KOW5) Deposited 2021-05-18	Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain F 1–127（127 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OO3 Pol II-CSB-CSA-DDB1-UVSSA (Structure1) Deposited 2021-05-26	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 17 PDB declaration: eicosameric	Chain F 1–127（127 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7OOB Pol II-CSB-CSA-DDB1-UVSSA-ADPBeF3 (Structure2) Deposited 2021-05-27	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain F 1–127（127 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.70 Å
7OOP Pol II-CSB-CSA-DDB1-UVSSA-PAF-SPT6 (Structure 3) Deposited 2021-05-28	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 23 PDB declaration: 26-meric	Chain F 1–127（127 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7OPC Pol II-CSB-CRL4CSA-UVSSA-SPT6-PAF (Structure 4) Deposited 2021-05-31	Different oligomeric state Different ligand/ion	Assembly 1 Other combination Heteromer；Protein × 25 PDB declaration: 28-meric	Chain F 1–127（127 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OPD Pol II-CSB-CRL4CSA-UVSSA-SPT6-PAF (Structure 5) Deposited 2021-05-31	Different oligomeric state Different ligand/ion	Assembly 1 Other combination Heteromer；Protein × 25 PDB declaration: 28-meric	Chain F 1–127（127 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OZN RNA Polymerase II dimer (Class 1) Deposited 2021-06-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric	Chain F 1–127（127 aa） Chain R 1–127（127 aa）	Not recorded	ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
7OZO RNA Polymerase II dimer (Class 2) Deposited 2021-06-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric	Chain F 1–127（127 aa） Chain R 1–127（127 aa）	Not recorded	ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
7OZP RNA Polymerase II dimer (Class 3) Deposited 2021-06-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric	Chain F 1–127（127 aa） Chain R 1–127（127 aa）	Not recorded	ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
7PKS Structural basis of Integrator-mediated transcription regulation Deposited 2021-08-26	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 30 PDB declaration: 31-meric	Chain F 1–127（127 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 10 MN MANGANESE (II) ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
7ZWD Structure of SNAPc containing Pol II pre-initiation complex bound to U5 snRNA promoter (CC) Deposited 2022-05-19	Parsed fields agree	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain F 1–127（127 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7ZX7 Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (CC) Deposited 2022-05-20	Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain F 1–127（127 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8B3D Structure of the Pol II-TCR-ELOF1 complex. Deposited 2022-09-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 17 PDB declaration: eicosameric	Chain F 1–127（127 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.60 Å
8B3F Pol II-CSB-CSA-DDB1-ELOF1 Deposited 2022-09-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain F 1–127（127 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8BVW RNA polymerase II pre-initiation complex with the distal +1 nucleosome (PIC-Nuc18W) Deposited 2022-12-20	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 40 PDB declaration: 42-meric	Chain F 1–127（127 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.00 Å
8BYQ RNA polymerase II pre-initiation complex with the proximal +1 nucleosome (PIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 38 PDB declaration: 40-meric	Chain F 1–127（127 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 16 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
8BZ1 RNA polymerase II core pre-initiation complex with the proximal +1 nucleosome (cPIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 26 PDB declaration: 28-meric	Chain F 1–127（127 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8OEU Structure of the mammalian Pol II-SPT6 complex (composite structure, Structure 4) Deposited 2023-03-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain F 1–127（127 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.04 Å
8OEV Structure of the mammalian Pol II-SPT6-Elongin complex, lacking ELOA latch (composite structure, structure 3) Deposited 2023-03-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain F 1–127（127 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.86 Å
8OEW Structure of the mammalian Pol II-Elongin complex, lacking the ELOA latch (composite structure, structure 2) Deposited 2023-03-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain F 1–127（127 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
8OF0 Structure of the mammalian Pol II-SPT6-Elongin complex, Structure 1 Deposited 2023-03-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain F 1–127（127 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.05 Å
8P4A Structural insights into human co-transcriptional capping - structure 1 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain F 1–127（127 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8P4B Structural insights into human co-transcriptional capping - structure 2 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain F 1–127（127 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
8P4C Structural insights into human co-transcriptional capping - structure 3 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain F 1–127（127 aa）	Not recorded	ZN ZINC ION × 3 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8P4D Structural insights into human co-transcriptional capping - structure 4 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain F 1–127（127 aa）	Not recorded	ZN ZINC ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8P4E Structural insights into human co-transcriptional capping - structure 5 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain F 1–127（127 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.90 Å
8P4F Structural insights into human co-transcriptional capping - structure 6 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain F 1–127（127 aa）	Not recorded	MGT 7N-METHYL-8-HYDROGUANOSINE-5'-TRIPHOSPHATE × 1 ZN ZINC ION × 8 MG MAGNESIUM ION × 1 SAM S-ADENOSYLMETHIONINE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.00 Å

42 other PDB entries and 42 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	F1SKN8_PIG
Isoform	—
PDB entities	6
Chains and sequence ranges	Author chain F； PDBConstruct 1–127； UniProt 1–127

DNA-directed RNA polymerase II subunit RPB7

OrganismNot specified

UniProt I3LJZ9

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein–DNA Heteromer Protein × 22 DNA 2 PDB declaration: 24-meric（24） Consistent with all polymer counts	Chain G； UniProt 1–172	Not recorded	DNA-directed RNA polymerase subunit × 1 （A0A8D1DPV6） DNA-directed RNA polymerase subunit beta × 1 （I3LGP4） DNA-directed RNA polymerase II subunit RPB3 × 1 （I3LCH3） RNA polymerase II subunit D × 1 （A0A287ADR4） DNA-directed RNA polymerase II subunit E × 1 （I3LSI7） DNA-directed RNA polymerase II subunit F × 1 （F1SKN8） DNA-directed RNA polymerases I, II, and III subunit RPABC3 × 1 （A0A4X1ULF2） DNA-directed RNA polymerase II subunit RPB9 × 1 （P60899） DNA-directed RNA polymerases I, II, and III subunit RPABC5 × 1 （A0A4X1VYD0） RNA polymerase II subunit J × 1 （A0A4X1UK25） RNA polymerase II subunit K × 1 （I3LN51） Transcription initiation factor IIB × 1 （Q00403） Non-template strand × 1 TATA-box-binding protein × 1 （P20226） General transcription factor IIF subunit 1 × 1 （P35269） General transcription factor IIF subunit 2 × 1 （P13984） Template strand × 1 Transcription initiation factor IIA subunit 1 × 1 （P52655） Transcription initiation factor IIA subunit 2 × 1 （P52657） snRNA-activating protein complex subunit 1 × 1 （Q16533） snRNA-activating protein complex subunit 3 × 1 （Q92966） snRNA-activating protein complex subunit 4 × 1 （Q5SXM2） snRNA-activating protein complex subunit 5 × 1 （O75971） ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.00 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7ZX8	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
6EXV Structure of mammalian RNA polymerase II elongation complex inhibited by Alpha-amanitin Deposited 2017-11-09	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain G 1–172（172 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
6GMH Structure of activated transcription complex Pol II-DSIF-PAF-SPT6 Deposited 2018-05-26	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: heptadecameric	Chain G 1–172（172 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE；10s wait prior to blotting, blotting 8.5s	Resolution 3.10 Å
6GML Structure of paused transcription complex Pol II-DSIF-NELF Deposited 2018-05-27	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 18 PDB declaration: 21-meric	Chain G 1–172（172 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 9	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
6TED Structure of complete, activated transcription complex Pol II-DSIF-PAF-SPT6 uncovers allosteric elongation activation by RTF1 Deposited 2019-11-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 21 PDB declaration: 24-meric	Chain G 1–172（172 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE；2 microliters applied to both sides of grid. Sample incubated on grid for 10s prior to blotting. Blotting for 8.5s.	Resolution 3.10 Å
7B0Y Structure of a transcribing RNA polymerase II-U1 snRNP complex Deposited 2020-11-23	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 21 PDB declaration: 25-meric	Chain G 1–172（172 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
7NVR Human Mediator with RNA Polymerase II Pre-initiation complex Deposited 2021-03-15	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 56 PDB declaration: 58-meric	Chain G 1–172（172 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 18 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.50 Å
7NVS RNA polymerase II core pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain G 1–172（172 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7NVT RNA polymerase II core pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain G 1–172（172 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7NVU RNA polymerase II core pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain G 1–172（172 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
7NVY RNA polymerase II pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain G 1–172（172 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.30 Å
7NVZ RNA polymerase II pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain G 1–172（172 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
7NW0 RNA polymerase II pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain G 1–172（172 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 15 ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 2 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.60 Å
7OKX Structure of active transcription elongation complex Pol II-DSIF (SPT5-KOW5)-ELL2-EAF1 (composite structure) Deposited 2021-05-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain G 1–172（172 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
7OKY Structure of active transcription elongation complex Pol II-DSIF-ELL2-EAF1(composite structure) Deposited 2021-05-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain G 1–172（172 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 9	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.14 Å
7OL0 Structure of active transcription elongation complex Pol II-DSIF (SPT5-KOW5) Deposited 2021-05-18	Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain G 1–172（172 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OO3 Pol II-CSB-CSA-DDB1-UVSSA (Structure1) Deposited 2021-05-26	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 17 PDB declaration: eicosameric	Chain G 1–172（172 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7OOB Pol II-CSB-CSA-DDB1-UVSSA-ADPBeF3 (Structure2) Deposited 2021-05-27	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain G 1–172（172 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.70 Å
7OOP Pol II-CSB-CSA-DDB1-UVSSA-PAF-SPT6 (Structure 3) Deposited 2021-05-28	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 23 PDB declaration: 26-meric	Chain G 1–172（172 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7OPC Pol II-CSB-CRL4CSA-UVSSA-SPT6-PAF (Structure 4) Deposited 2021-05-31	Different oligomeric state Different ligand/ion	Assembly 1 Other combination Heteromer；Protein × 25 PDB declaration: 28-meric	Chain G 1–172（172 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OPD Pol II-CSB-CRL4CSA-UVSSA-SPT6-PAF (Structure 5) Deposited 2021-05-31	Different oligomeric state Different ligand/ion	Assembly 1 Other combination Heteromer；Protein × 25 PDB declaration: 28-meric	Chain G 1–172（172 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OZN RNA Polymerase II dimer (Class 1) Deposited 2021-06-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric	Chain G 1–172（172 aa） Chain S 1–172（172 aa）	Not recorded	ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
7OZO RNA Polymerase II dimer (Class 2) Deposited 2021-06-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric	Chain G 1–172（172 aa） Chain S 1–172（172 aa）	Not recorded	ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
7OZP RNA Polymerase II dimer (Class 3) Deposited 2021-06-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric	Chain G 1–172（172 aa） Chain S 1–172（172 aa）	Not recorded	ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
7PKS Structural basis of Integrator-mediated transcription regulation Deposited 2021-08-26	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 30 PDB declaration: 31-meric	Chain G 1–172（172 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 10 MN MANGANESE (II) ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
7ZWD Structure of SNAPc containing Pol II pre-initiation complex bound to U5 snRNA promoter (CC) Deposited 2022-05-19	Parsed fields agree	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain G 1–172（172 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7ZX7 Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (CC) Deposited 2022-05-20	Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain G 1–172（172 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8BZ1 RNA polymerase II core pre-initiation complex with the proximal +1 nucleosome (cPIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 26 PDB declaration: 28-meric	Chain G 1–172（172 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å

27 other PDB entries and 27 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	I3LJZ9_PIG
Isoform	—
PDB entities	7
Chains and sequence ranges	Author chain G； PDBConstruct 1–172； UniProt 1–172

DNA-directed RNA polymerases I, II, and III subunit RPABC3

OrganismNot specified

UniProt A0A4X1ULF2

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein–DNA Heteromer Protein × 22 DNA 2 PDB declaration: 24-meric（24） Consistent with all polymer counts	Chain H； UniProt 1–150	Not recorded	DNA-directed RNA polymerase subunit × 1 （A0A8D1DPV6） DNA-directed RNA polymerase subunit beta × 1 （I3LGP4） DNA-directed RNA polymerase II subunit RPB3 × 1 （I3LCH3） RNA polymerase II subunit D × 1 （A0A287ADR4） DNA-directed RNA polymerase II subunit E × 1 （I3LSI7） DNA-directed RNA polymerase II subunit F × 1 （F1SKN8） DNA-directed RNA polymerase II subunit RPB7 × 1 （I3LJZ9） DNA-directed RNA polymerase II subunit RPB9 × 1 （P60899） DNA-directed RNA polymerases I, II, and III subunit RPABC5 × 1 （A0A4X1VYD0） RNA polymerase II subunit J × 1 （A0A4X1UK25） RNA polymerase II subunit K × 1 （I3LN51） Transcription initiation factor IIB × 1 （Q00403） Non-template strand × 1 TATA-box-binding protein × 1 （P20226） General transcription factor IIF subunit 1 × 1 （P35269） General transcription factor IIF subunit 2 × 1 （P13984） Template strand × 1 Transcription initiation factor IIA subunit 1 × 1 （P52655） Transcription initiation factor IIA subunit 2 × 1 （P52657） snRNA-activating protein complex subunit 1 × 1 （Q16533） snRNA-activating protein complex subunit 3 × 1 （Q92966） snRNA-activating protein complex subunit 4 × 1 （Q5SXM2） snRNA-activating protein complex subunit 5 × 1 （O75971） ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.00 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7ZX8	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
7B7U Cryo-EM structure of mammalian RNA polymerase II in complex with human RPAP2 Deposited 2020-12-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric	Chain H 1–150（150 aa）	Not recorded	ZN ZINC ION × 6	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7EDX p53-bound TFIID-based core PIC on HDM2 promoter Deposited 2021-03-17	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain v 1–150（150 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.50 Å
7EG7 TFIID-based core PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain v 1–150（150 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.20 Å
7EG8 TFIID-based core PIC on PUMA promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain v 1–150（150 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.40 Å
7EG9 TFIID-based intermediate PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 39 PDB declaration: 41-meric	Chain v 1–150（150 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.70 Å
7EGA TFIID-based intermediate PIC on PUMA promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 39 PDB declaration: 41-meric	Chain v 1–150（150 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
7EGB TFIID-based holo PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 49 PDB declaration: 51-meric	Chain v 1–150（150 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
7EGC p53-bound TFIID-based holo PIC on HDM2 promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 49 PDB declaration: 51-meric	Chain v 1–150（150 aa）	Not recorded	ZN ZINC ION × 16 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.90 Å
7ENA TFIID-based PIC-Mediator holo-complex in pre-assembled state (pre-hPIC-MED) Deposited 2021-04-16	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 74 PDB declaration: 76-meric	Chain PH 1–150（150 aa）	Not recorded	ZN ZINC ION × 16 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.07 Å
7ENC TFIID-based PIC-Mediator holo-complex in fully-assembled state (hPIC-MED) Deposited 2021-04-16	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 74 PDB declaration: 76-meric	Chain PH 1–150（150 aa）	Not recorded	ZN ZINC ION × 16 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.13 Å
7F4G Structure of RPAP2-bound RNA polymerase II Deposited 2021-06-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 13 PDB declaration: tridecameric	Chain H 1–150（150 aa）	Not recorded	ZN ZINC ION × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.78 Å
7NVR Human Mediator with RNA Polymerase II Pre-initiation complex Deposited 2021-03-15	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 56 PDB declaration: 58-meric	Chain H 1–150（150 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 18 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.50 Å
7NVS RNA polymerase II core pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain H 1–150（150 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7NVT RNA polymerase II core pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain H 1–150（150 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7NVU RNA polymerase II core pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain H 1–150（150 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
7NVY RNA polymerase II pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain H 1–150（150 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.30 Å
7NVZ RNA polymerase II pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain H 1–150（150 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
7NW0 RNA polymerase II pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain H 1–150（150 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 15 ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 2 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.60 Å
7OKX Structure of active transcription elongation complex Pol II-DSIF (SPT5-KOW5)-ELL2-EAF1 (composite structure) Deposited 2021-05-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain H 1–150（150 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
7OKY Structure of active transcription elongation complex Pol II-DSIF-ELL2-EAF1(composite structure) Deposited 2021-05-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain H 1–150（150 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 9	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.14 Å
7OL0 Structure of active transcription elongation complex Pol II-DSIF (SPT5-KOW5) Deposited 2021-05-18	Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain H 1–150（150 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OO3 Pol II-CSB-CSA-DDB1-UVSSA (Structure1) Deposited 2021-05-26	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 17 PDB declaration: eicosameric	Chain H 1–150（150 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7OOB Pol II-CSB-CSA-DDB1-UVSSA-ADPBeF3 (Structure2) Deposited 2021-05-27	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain H 1–150（150 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.70 Å
7OOP Pol II-CSB-CSA-DDB1-UVSSA-PAF-SPT6 (Structure 3) Deposited 2021-05-28	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 23 PDB declaration: 26-meric	Chain H 1–150（150 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7OPC Pol II-CSB-CRL4CSA-UVSSA-SPT6-PAF (Structure 4) Deposited 2021-05-31	Different oligomeric state Different ligand/ion	Assembly 1 Other combination Heteromer；Protein × 25 PDB declaration: 28-meric	Chain H 1–150（150 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OPD Pol II-CSB-CRL4CSA-UVSSA-SPT6-PAF (Structure 5) Deposited 2021-05-31	Different oligomeric state Different ligand/ion	Assembly 1 Other combination Heteromer；Protein × 25 PDB declaration: 28-meric	Chain H 1–150（150 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OZN RNA Polymerase II dimer (Class 1) Deposited 2021-06-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric	Chain H 1–150（150 aa） Chain T 1–150（150 aa）	Not recorded	ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
7OZO RNA Polymerase II dimer (Class 2) Deposited 2021-06-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric	Chain H 1–150（150 aa） Chain T 1–150（150 aa）	Not recorded	ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
7OZP RNA Polymerase II dimer (Class 3) Deposited 2021-06-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric	Chain H 1–150（150 aa） Chain T 1–150（150 aa）	Not recorded	ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
7PKS Structural basis of Integrator-mediated transcription regulation Deposited 2021-08-26	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 30 PDB declaration: 31-meric	Chain H 1–150（150 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 10 MN MANGANESE (II) ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
7YCX The structure of INTAC-PEC complex Deposited 2022-07-02	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 31 PDB declaration: 34-meric	Chain 6 1–150（150 aa）	Not recorded	ZN ZINC ION × 10 MN MANGANESE (II) ION × 2 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.18 Å
7ZWD Structure of SNAPc containing Pol II pre-initiation complex bound to U5 snRNA promoter (CC) Deposited 2022-05-19	Parsed fields agree	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain H 1–150（150 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7ZX7 Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (CC) Deposited 2022-05-20	Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain H 1–150（150 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8B3D Structure of the Pol II-TCR-ELOF1 complex. Deposited 2022-09-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 17 PDB declaration: eicosameric	Chain H 1–150（150 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.60 Å
8B3F Pol II-CSB-CSA-DDB1-ELOF1 Deposited 2022-09-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain H 1–150（150 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8GXQ PIC-Mediator in complex with +1 nucleosome (T40N) in MH-binding state Deposited 2022-09-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 83 PDB declaration: 87-meric	Chain PH 1–150（150 aa）	Not recorded	ZN ZINC ION × 19 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.04 Å
8GXS PIC-Mediator in complex with +1 nucleosome (T40N) in H-binding state Deposited 2022-09-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 83 PDB declaration: 87-meric	Chain PH 1–150（150 aa）	Not recorded	ZN ZINC ION × 19 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.16 Å

37 other PDB entries and 37 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	A0A4X1ULF2_PIG
Isoform	—
PDB entities	8
Chains and sequence ranges	Author chain H； PDBConstruct 1–150； UniProt 1–150

DNA-directed RNA polymerase II subunit RPB9

OrganismNot specified

UniProt P60899

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein–DNA Heteromer Protein × 22 DNA 2 PDB declaration: 24-meric（24） Consistent with all polymer counts	Chain I； UniProt 1–125	Not recorded	DNA-directed RNA polymerase subunit × 1 （A0A8D1DPV6） DNA-directed RNA polymerase subunit beta × 1 （I3LGP4） DNA-directed RNA polymerase II subunit RPB3 × 1 （I3LCH3） RNA polymerase II subunit D × 1 （A0A287ADR4） DNA-directed RNA polymerase II subunit E × 1 （I3LSI7） DNA-directed RNA polymerase II subunit F × 1 （F1SKN8） DNA-directed RNA polymerase II subunit RPB7 × 1 （I3LJZ9） DNA-directed RNA polymerases I, II, and III subunit RPABC3 × 1 （A0A4X1ULF2） DNA-directed RNA polymerases I, II, and III subunit RPABC5 × 1 （A0A4X1VYD0） RNA polymerase II subunit J × 1 （A0A4X1UK25） RNA polymerase II subunit K × 1 （I3LN51） Transcription initiation factor IIB × 1 （Q00403） Non-template strand × 1 TATA-box-binding protein × 1 （P20226） General transcription factor IIF subunit 1 × 1 （P35269） General transcription factor IIF subunit 2 × 1 （P13984） Template strand × 1 Transcription initiation factor IIA subunit 1 × 1 （P52655） Transcription initiation factor IIA subunit 2 × 1 （P52657） snRNA-activating protein complex subunit 1 × 1 （Q16533） snRNA-activating protein complex subunit 3 × 1 （Q92966） snRNA-activating protein complex subunit 4 × 1 （Q5SXM2） snRNA-activating protein complex subunit 5 × 1 （O75971） ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.00 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7ZX8	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
6EXV Structure of mammalian RNA polymerase II elongation complex inhibited by Alpha-amanitin Deposited 2017-11-09	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
6GMH Structure of activated transcription complex Pol II-DSIF-PAF-SPT6 Deposited 2018-05-26	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: heptadecameric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE；10s wait prior to blotting, blotting 8.5s	Resolution 3.10 Å
6GML Structure of paused transcription complex Pol II-DSIF-NELF Deposited 2018-05-27	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 18 PDB declaration: 21-meric	Chain I 1–125（125 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 9	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
6TED Structure of complete, activated transcription complex Pol II-DSIF-PAF-SPT6 uncovers allosteric elongation activation by RTF1 Deposited 2019-11-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 21 PDB declaration: 24-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE；2 microliters applied to both sides of grid. Sample incubated on grid for 10s prior to blotting. Blotting for 8.5s.	Resolution 3.10 Å
7B0Y Structure of a transcribing RNA polymerase II-U1 snRNP complex Deposited 2020-11-23	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 21 PDB declaration: 25-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
7B7U Cryo-EM structure of mammalian RNA polymerase II in complex with human RPAP2 Deposited 2020-12-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 6	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7EDX p53-bound TFIID-based core PIC on HDM2 promoter Deposited 2021-03-17	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain w 1–125（125 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.50 Å
7EG7 TFIID-based core PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain w 1–125（125 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.20 Å
7EG8 TFIID-based core PIC on PUMA promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain w 1–125（125 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.40 Å
7EG9 TFIID-based intermediate PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 39 PDB declaration: 41-meric	Chain w 1–125（125 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.70 Å
7EGA TFIID-based intermediate PIC on PUMA promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 39 PDB declaration: 41-meric	Chain w 1–125（125 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
7EGB TFIID-based holo PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 49 PDB declaration: 51-meric	Chain w 1–125（125 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
7EGC p53-bound TFIID-based holo PIC on HDM2 promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 49 PDB declaration: 51-meric	Chain w 1–125（125 aa）	Not recorded	ZN ZINC ION × 16 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.90 Å
7ENA TFIID-based PIC-Mediator holo-complex in pre-assembled state (pre-hPIC-MED) Deposited 2021-04-16	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 74 PDB declaration: 76-meric	Chain PI 1–125（125 aa）	Not recorded	ZN ZINC ION × 16 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.07 Å
7ENC TFIID-based PIC-Mediator holo-complex in fully-assembled state (hPIC-MED) Deposited 2021-04-16	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 74 PDB declaration: 76-meric	Chain PI 1–125（125 aa）	Not recorded	ZN ZINC ION × 16 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.13 Å
7F4G Structure of RPAP2-bound RNA polymerase II Deposited 2021-06-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 13 PDB declaration: tridecameric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.78 Å
7NVR Human Mediator with RNA Polymerase II Pre-initiation complex Deposited 2021-03-15	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 56 PDB declaration: 58-meric	Chain I 1–125（125 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 18 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.50 Å
7NVS RNA polymerase II core pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7NVT RNA polymerase II core pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7NVU RNA polymerase II core pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
7NVY RNA polymerase II pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain I 1–125（125 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.30 Å
7NVZ RNA polymerase II pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain I 1–125（125 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
7NW0 RNA polymerase II pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain I 1–125（125 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 15 ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 2 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.60 Å
7OKX Structure of active transcription elongation complex Pol II-DSIF (SPT5-KOW5)-ELL2-EAF1 (composite structure) Deposited 2021-05-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain I 1–125（125 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
7OKY Structure of active transcription elongation complex Pol II-DSIF-ELL2-EAF1(composite structure) Deposited 2021-05-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain I 1–125（125 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 9	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.14 Å
7OL0 Structure of active transcription elongation complex Pol II-DSIF (SPT5-KOW5) Deposited 2021-05-18	Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain I 1–125（125 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OO3 Pol II-CSB-CSA-DDB1-UVSSA (Structure1) Deposited 2021-05-26	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 17 PDB declaration: eicosameric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7OOB Pol II-CSB-CSA-DDB1-UVSSA-ADPBeF3 (Structure2) Deposited 2021-05-27	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.70 Å
7OOP Pol II-CSB-CSA-DDB1-UVSSA-PAF-SPT6 (Structure 3) Deposited 2021-05-28	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 23 PDB declaration: 26-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7OPC Pol II-CSB-CRL4CSA-UVSSA-SPT6-PAF (Structure 4) Deposited 2021-05-31	Different oligomeric state Different ligand/ion	Assembly 1 Other combination Heteromer；Protein × 25 PDB declaration: 28-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OPD Pol II-CSB-CRL4CSA-UVSSA-SPT6-PAF (Structure 5) Deposited 2021-05-31	Different oligomeric state Different ligand/ion	Assembly 1 Other combination Heteromer；Protein × 25 PDB declaration: 28-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OZN RNA Polymerase II dimer (Class 1) Deposited 2021-06-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric	Chain I 1–125（125 aa） Chain U 1–125（125 aa）	Not recorded	ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
7OZO RNA Polymerase II dimer (Class 2) Deposited 2021-06-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric	Chain I 1–125（125 aa） Chain U 1–125（125 aa）	Not recorded	ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
7OZP RNA Polymerase II dimer (Class 3) Deposited 2021-06-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric	Chain I 1–125（125 aa） Chain U 1–125（125 aa）	Not recorded	ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
7PKS Structural basis of Integrator-mediated transcription regulation Deposited 2021-08-26	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 30 PDB declaration: 31-meric	Chain I 1–125（125 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 10 MN MANGANESE (II) ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
7YCX The structure of INTAC-PEC complex Deposited 2022-07-02	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 31 PDB declaration: 34-meric	Chain 7 1–125（125 aa）	Not recorded	ZN ZINC ION × 10 MN MANGANESE (II) ION × 2 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.18 Å
7ZWD Structure of SNAPc containing Pol II pre-initiation complex bound to U5 snRNA promoter (CC) Deposited 2022-05-19	Parsed fields agree	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7ZX7 Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (CC) Deposited 2022-05-20	Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8A3Y Structure of mammalian Pol II-DSIF-SPT6-PAF1-TFIIS-hexasome elongation complex Deposited 2022-06-09	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Insufficient information Heteromer；Protein × 27 PDB declaration: 30-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
8A40 Structure of mammalian Pol II-TFIIS elongation complex Deposited 2022-06-09	Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
8B3D Structure of the Pol II-TCR-ELOF1 complex. Deposited 2022-09-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 17 PDB declaration: eicosameric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.60 Å
8B3F Pol II-CSB-CSA-DDB1-ELOF1 Deposited 2022-09-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8BVW RNA polymerase II pre-initiation complex with the distal +1 nucleosome (PIC-Nuc18W) Deposited 2022-12-20	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 40 PDB declaration: 42-meric	Chain I 1–125（125 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.00 Å
8BYQ RNA polymerase II pre-initiation complex with the proximal +1 nucleosome (PIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 38 PDB declaration: 40-meric	Chain I 1–125（125 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 16 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
8BZ1 RNA polymerase II core pre-initiation complex with the proximal +1 nucleosome (cPIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 26 PDB declaration: 28-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8GXQ PIC-Mediator in complex with +1 nucleosome (T40N) in MH-binding state Deposited 2022-09-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 83 PDB declaration: 87-meric	Chain PI 1–125（125 aa）	Not recorded	ZN ZINC ION × 19 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.04 Å
8GXS PIC-Mediator in complex with +1 nucleosome (T40N) in H-binding state Deposited 2022-09-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 83 PDB declaration: 87-meric	Chain PI 1–125（125 aa）	Not recorded	ZN ZINC ION × 19 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.16 Å
8OEU Structure of the mammalian Pol II-SPT6 complex (composite structure, Structure 4) Deposited 2023-03-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain I 1–125（125 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.04 Å
8OEV Structure of the mammalian Pol II-SPT6-Elongin complex, lacking ELOA latch (composite structure, structure 3) Deposited 2023-03-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain I 1–125（125 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.86 Å
8OEW Structure of the mammalian Pol II-Elongin complex, lacking the ELOA latch (composite structure, structure 2) Deposited 2023-03-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain I 1–125（125 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
8OF0 Structure of the mammalian Pol II-SPT6-Elongin complex, Structure 1 Deposited 2023-03-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain I 1–125（125 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.05 Å
8P4A Structural insights into human co-transcriptional capping - structure 1 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain I 1–125（125 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8P4B Structural insights into human co-transcriptional capping - structure 2 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
8P4C Structural insights into human co-transcriptional capping - structure 3 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 3 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8P4D Structural insights into human co-transcriptional capping - structure 4 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8P4E Structural insights into human co-transcriptional capping - structure 5 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain I 1–125（125 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.90 Å
8P4F Structural insights into human co-transcriptional capping - structure 6 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain I 1–125（125 aa）	Not recorded	MGT 7N-METHYL-8-HYDROGUANOSINE-5'-TRIPHOSPHATE × 1 ZN ZINC ION × 8 MG MAGNESIUM ION × 1 SAM S-ADENOSYLMETHIONINE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.00 Å
8QEP RNA polymerase II bound to Alu RNA right arm Deposited 2023-09-01	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: 11-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.25 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
8QEQ RNA polymerase II bound to minimal Alu RNA right arm in the alternative conformation Deposited 2023-09-01	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–RNA Heteromer；Protein × 10 PDB declaration: 11-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 7 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.25 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8RBX Structure of Integrator-PP2A bound to a paused RNA polymerase II-DSIF-NELF-nucleosome complex Deposited 2023-12-05	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 43 PDB declaration: 46-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1 MN MANGANESE (II) ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
8S51 RNA polymerase II core initially transcribing complex with an ordered RNA of 8 nt Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8S52 RNA polymerase II core initially transcribing complex with an ordered RNA of 10 nt Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
8S54 RNA polymerase II early elongation complex bound to TFIIE and TFIIF - state b (composite structure) Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: 18-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8S55 RNA polymerase II early elongation complex bound to TFIIE and TFIIF - state a (composite structure) Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: 19-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8S5N RNA polymerase II core initially transcribing complex with an ordered RNA of 12 nt Deposited 2024-02-24	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8UHA Structure of paused transcription complex Pol II-DSIF-NELF - tilted Deposited 2023-10-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 18 PDB declaration: 21-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
8UHD Structure of paused transcription complex Pol II-DSIF-NELF - post-translocated Deposited 2023-10-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 18 PDB declaration: 21-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
8UHG Structure of paused transcription complex Pol II-DSIF-NELF - poised post-translocated Deposited 2023-10-09	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 17 PDB declaration: eicosameric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.70 Å
8UI0 Structure of poised transcription complex Pol II-DSIF-NELF - pre-translocated Deposited 2023-10-09	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 17 PDB declaration: eicosameric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.70 Å
8UIS Structure of transcription complex Pol II-DSIF-NELF-TFIIS Deposited 2023-10-10	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.23 Å
8W8E human co-transcriptional RNA capping enzyme RNGTT Deposited 2023-09-02	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 19 PDB declaration: 22-meric	Chain I 1–125（125 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8 GTP GUANOSINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 3.90 Å
8W8F human co-transcriptional RNA capping enzyme RNGTT-CMTR1 Deposited 2023-09-02	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain I 1–125（125 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8 GTP GUANOSINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 4.00 Å
8WAK Structure of transcribing complex 2 (TC2), the initially transcribing complex with Pol II positioned 2nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain w 1–125（125 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.47 Å
8WAL Structure of transcribing complex 3 (TC3), the initially transcribing complex with Pol II positioned 3nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain w 1–125（125 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 8.52 Å
8WAN Structure of transcribing complex 4 (TC4), the initially transcribing complex with Pol II positioned 4nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain w 1–125（125 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.07 Å
8WAO Structure of transcribing complex 5 (TC5), the initially transcribing complex with Pol II positioned 5nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain w 1–125（125 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.40 Å
8WAP Structure of transcribing complex 6 (TC6), the initially transcribing complex with Pol II positioned 6nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain w 1–125（125 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.85 Å
8WAQ Structure of transcribing complex 7 (TC7), the initially transcribing complex with Pol II positioned 7nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain w 1–125（125 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.29 Å
8WAR Structure of transcribing complex 8 (TC8), the initially transcribing complex with Pol II positioned 8nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain w 1–125（125 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
8WAS Structure of transcribing complex 9 (TC9), the initially transcribing complex with Pol II positioned 9nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain w 1–125（125 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.13 Å
8WAT De novo transcribing complex 10 (TC10), the early elongation complex with Pol II positioned 10nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain w 1–125（125 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.82 Å
8WAU De novo transcribing complex 11 (TC11), the early elongation complex with Pol II positioned 11nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain w 1–125（125 aa）	Not recorded	W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1 ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.78 Å
8WAV De novo transcribing complex 12 (TC12), the early elongation complex with Pol II positioned 12nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain w 1–125（125 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.72 Å
8WAW De novo transcribing complex 13 (TC13), the early elongation complex with Pol II positioned 13nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain w 1–125（125 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.02 Å
8WAX De novo transcribing complex 14 (TC14), the early elongation complex with Pol II positioned 14nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain w 1–125（125 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.75 Å
8WAY De novo transcribing complex 15 (TC15), the early elongation complex with Pol II positioned 15nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain w 1–125（125 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.85 Å
8WAZ De novo transcribing complex 16 (TC16), the early elongation complex with Pol II positioned 16nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain w 1–125（125 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.76 Å
8WB0 De novo transcribing complex 17 (TC17), the early elongation complex with Pol II positioned 17nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain w 1–125（125 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.94 Å
9BZ0 Structure of an STK19-containing TC-NER complex Deposited 2024-05-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 19 PDB declaration: 22-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 1.90 Å
9EGX RNA polymerase II-DSIF-SPT6-PAF1c-TFIIS-IWS1-hexasome, bp +27 Deposited 2024-11-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 29 PDB declaration: 32-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
9EGY RNA polymerase II-DSIF-SPT6-PAF1c-TFIIS-IWS1-nucleosome, bp +27 Deposited 2024-11-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 31 PDB declaration: 34-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
9EGZ RNA polymerase II-DSIF-SPT6-PAF1c-TFIIS-IWS1-SETD2-nucleosome, bp +27 Deposited 2024-11-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 32 PDB declaration: 35-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 12 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
9EH0 RNA polymerase II-DSIF-SPT6-PAF1c-TFIIS-IWS1-SETD2-nucleosome, 30 bp upstream Deposited 2024-11-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 32 PDB declaration: 35-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
9EH1 RNA polymerase II-DSIF-SPT6-PAF1c-TFIIS-IWS1-SETD2-nucleosome, 20 bp upstream Deposited 2024-11-21	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 32 PDB declaration: 35-meric	Chain I 10–125（116 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
9EH2 RNA polymerase II-DSIF-SPT6-PAF1c-TFIIS-IWS1-SETD2-FACT nucleosome upstream Deposited 2024-11-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 32 PDB declaration: 35-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
9ER2 PolII-TCR-STK19 structure. Deposited 2024-03-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 19 PDB declaration: 22-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
9FD2 Structure of Pol II-TC-NER-STK19 complex Deposited 2024-05-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 19 PDB declaration: 22-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
9FYX Influenza A/H7N9 polymerase pre-cleavage cap-snatching complex Deposited 2024-07-04	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 18 PDB declaration: 23-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 9 G1G 7-METHYL-GUANOSINE-5'-TRIPHOSPHATE-5'-(2'-O-METHYL)-GUANOSINE × 1 MG MAGNESIUM ION × 2 PO4 PHOSPHATE ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 8；20 mM BICINE pH 8.0 150 mM NaCl 0.1 mM MgCl2 4% glycerol cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
9G0A Influenza A/H7N9 polymerase post-cleavage cap-snatching complex Deposited 2024-07-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 18 PDB declaration: 23-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 2 G1G 7-METHYL-GUANOSINE-5'-TRIPHOSPHATE-5'-(2'-O-METHYL)-GUANOSINE × 1 PO4 PHOSPHATE ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 8；20 mM BICINE pH 8.0 150 mM NaCl 3 mM MgCl2 4% glycerol cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
9HVO Structure of the transcribing Pol II-RECQL5 complex Deposited 2024-12-31	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: 16-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；20 mM HEPES pH 7.5, 100 mM NaCl, 3 mM MgCl2, 1 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
9HVQ Structure of the transcribing Pol II-DSIF-PAF-SPT6-RECQL5 complex Deposited 2024-12-31	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 21 PDB declaration: 24-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；20 mM HEPES pH 7.5, 50 mM KCl, 4 mM MgCl2, 1 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.00 Å
9HWG Structure of the transcribing Pol II-TCR-RECQL5 complex Deposited 2025-01-03	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 18 PDB declaration: 21-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；20 mM HEPES pH 7.5, 50 mM KCl, 4 mM MgCl2, 1 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
9J0N Paused elongation complex of mammalian RNA polymerase II with nucleosome (PEC2-nuc) Deposited 2024-08-02	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 27 PDB declaration: 30-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
9J0O Arrested elongation complex of mammalian RNA polymerase II with nucleosome (AEC1-nuc) Deposited 2024-08-02	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 26 PDB declaration: 29-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
9J0P Arrested elongation complex of mammalian RNA polymerase II with nucleosome (AEC2-nuc) Deposited 2024-08-02	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 26 PDB declaration: 29-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
9MLC Pol II-DSIF-SPT6-PAF1c-TFIIS-IWS1-ELOF1-LEDGF-nucleosome activated elongation complex Composite map T Deposited 2024-12-19	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 24 PDB declaration: 27-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.40 Å
9QEQ Structure of the transcribing Pol II-DSIF-SPT6-U1 snRNP complex Deposited 2025-03-10	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 24 PDB declaration: 28-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；20 mM Hepes, 100 mM NaCl, 3 mM MgCl2, 0.5 mM TCEP cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
9RTT Activated Elongation Complex with IWS1 and ELOF1 Deposited 2025-07-03	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 22 PDB declaration: 25-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.01 Å
9RZE State 2 MAP 3 RNA Pol II activated elongation complex with SETD2 bound to proximal upstream H3 Deposited 2025-07-15	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 31 PDB declaration: 34-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 8.53 Å
9S0U State 3 MAP 3 RNA Pol II activated elongation complex with SETD2 bound to distal upstream H3 Deposited 2025-07-17	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 32 PDB declaration: 35-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.72 Å
9S3G State 1 MAP3 RNA Pol II activated elongation complex with SETD2 and upstream hexasome Deposited 2025-07-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 31 PDB declaration: 34-meric	Chain I 1–125（125 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.40 Å

111 other PDB entries and 111 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	RPB9_PIG
Isoform	—
PDB entities	9
Chains and sequence ranges	Author chain I； PDBConstruct 1–125； UniProt 1–125

DNA-directed RNA polymerases I, II, and III subunit RPABC5

OrganismNot specified

UniProt A0A4X1VYD0

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein–DNA Heteromer Protein × 22 DNA 2 PDB declaration: 24-meric（24） Consistent with all polymer counts	Chain J； UniProt 1–67	Not recorded	DNA-directed RNA polymerase subunit × 1 （A0A8D1DPV6） DNA-directed RNA polymerase subunit beta × 1 （I3LGP4） DNA-directed RNA polymerase II subunit RPB3 × 1 （I3LCH3） RNA polymerase II subunit D × 1 （A0A287ADR4） DNA-directed RNA polymerase II subunit E × 1 （I3LSI7） DNA-directed RNA polymerase II subunit F × 1 （F1SKN8） DNA-directed RNA polymerase II subunit RPB7 × 1 （I3LJZ9） DNA-directed RNA polymerases I, II, and III subunit RPABC3 × 1 （A0A4X1ULF2） DNA-directed RNA polymerase II subunit RPB9 × 1 （P60899） RNA polymerase II subunit J × 1 （A0A4X1UK25） RNA polymerase II subunit K × 1 （I3LN51） Transcription initiation factor IIB × 1 （Q00403） Non-template strand × 1 TATA-box-binding protein × 1 （P20226） General transcription factor IIF subunit 1 × 1 （P35269） General transcription factor IIF subunit 2 × 1 （P13984） Template strand × 1 Transcription initiation factor IIA subunit 1 × 1 （P52655） Transcription initiation factor IIA subunit 2 × 1 （P52657） snRNA-activating protein complex subunit 1 × 1 （Q16533） snRNA-activating protein complex subunit 3 × 1 （Q92966） snRNA-activating protein complex subunit 4 × 1 （Q5SXM2） snRNA-activating protein complex subunit 5 × 1 （O75971） ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.00 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7ZX8	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
7B0Y Structure of a transcribing RNA polymerase II-U1 snRNP complex Deposited 2020-11-23	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 21 PDB declaration: 25-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
7NVR Human Mediator with RNA Polymerase II Pre-initiation complex Deposited 2021-03-15	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 56 PDB declaration: 58-meric	Chain J 1–67（67 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 18 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.50 Å
7NVS RNA polymerase II core pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7NVT RNA polymerase II core pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7NVU RNA polymerase II core pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
7NVY RNA polymerase II pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain J 1–67（67 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.30 Å
7NVZ RNA polymerase II pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain J 1–67（67 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
7NW0 RNA polymerase II pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain J 1–67（67 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 15 ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 2 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.60 Å
7OKX Structure of active transcription elongation complex Pol II-DSIF (SPT5-KOW5)-ELL2-EAF1 (composite structure) Deposited 2021-05-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain J 1–67（67 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
7OKY Structure of active transcription elongation complex Pol II-DSIF-ELL2-EAF1(composite structure) Deposited 2021-05-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain J 1–67（67 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 9	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.14 Å
7OL0 Structure of active transcription elongation complex Pol II-DSIF (SPT5-KOW5) Deposited 2021-05-18	Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain J 1–67（67 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OO3 Pol II-CSB-CSA-DDB1-UVSSA (Structure1) Deposited 2021-05-26	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 17 PDB declaration: eicosameric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7OOB Pol II-CSB-CSA-DDB1-UVSSA-ADPBeF3 (Structure2) Deposited 2021-05-27	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.70 Å
7OOP Pol II-CSB-CSA-DDB1-UVSSA-PAF-SPT6 (Structure 3) Deposited 2021-05-28	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 23 PDB declaration: 26-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7OPC Pol II-CSB-CRL4CSA-UVSSA-SPT6-PAF (Structure 4) Deposited 2021-05-31	Different oligomeric state Different ligand/ion	Assembly 1 Other combination Heteromer；Protein × 25 PDB declaration: 28-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OPD Pol II-CSB-CRL4CSA-UVSSA-SPT6-PAF (Structure 5) Deposited 2021-05-31	Different oligomeric state Different ligand/ion	Assembly 1 Other combination Heteromer；Protein × 25 PDB declaration: 28-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7ZWD Structure of SNAPc containing Pol II pre-initiation complex bound to U5 snRNA promoter (CC) Deposited 2022-05-19	Parsed fields agree	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7ZX7 Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (CC) Deposited 2022-05-20	Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8A3Y Structure of mammalian Pol II-DSIF-SPT6-PAF1-TFIIS-hexasome elongation complex Deposited 2022-06-09	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Insufficient information Heteromer；Protein × 27 PDB declaration: 30-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
8A40 Structure of mammalian Pol II-TFIIS elongation complex Deposited 2022-06-09	Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
8BVW RNA polymerase II pre-initiation complex with the distal +1 nucleosome (PIC-Nuc18W) Deposited 2022-12-20	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 40 PDB declaration: 42-meric	Chain J 1–67（67 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.00 Å
8BYQ RNA polymerase II pre-initiation complex with the proximal +1 nucleosome (PIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 38 PDB declaration: 40-meric	Chain J 1–67（67 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 16 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
8BZ1 RNA polymerase II core pre-initiation complex with the proximal +1 nucleosome (cPIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 26 PDB declaration: 28-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8OEU Structure of the mammalian Pol II-SPT6 complex (composite structure, Structure 4) Deposited 2023-03-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain J 1–67（67 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.04 Å
8OEV Structure of the mammalian Pol II-SPT6-Elongin complex, lacking ELOA latch (composite structure, structure 3) Deposited 2023-03-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain J 1–67（67 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.86 Å
8OEW Structure of the mammalian Pol II-Elongin complex, lacking the ELOA latch (composite structure, structure 2) Deposited 2023-03-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain J 1–67（67 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
8OF0 Structure of the mammalian Pol II-SPT6-Elongin complex, Structure 1 Deposited 2023-03-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain J 1–67（67 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.05 Å
8P4A Structural insights into human co-transcriptional capping - structure 1 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain J 1–67（67 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8P4B Structural insights into human co-transcriptional capping - structure 2 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
8P4C Structural insights into human co-transcriptional capping - structure 3 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 3 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8P4D Structural insights into human co-transcriptional capping - structure 4 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8P4E Structural insights into human co-transcriptional capping - structure 5 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain J 1–67（67 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.90 Å
8P4F Structural insights into human co-transcriptional capping - structure 6 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain J 1–67（67 aa）	Not recorded	MGT 7N-METHYL-8-HYDROGUANOSINE-5'-TRIPHOSPHATE × 1 ZN ZINC ION × 8 MG MAGNESIUM ION × 1 SAM S-ADENOSYLMETHIONINE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.00 Å
8QEP RNA polymerase II bound to Alu RNA right arm Deposited 2023-09-01	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: 11-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.25 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
8QEQ RNA polymerase II bound to minimal Alu RNA right arm in the alternative conformation Deposited 2023-09-01	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–RNA Heteromer；Protein × 10 PDB declaration: 11-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 7 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.25 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8RBX Structure of Integrator-PP2A bound to a paused RNA polymerase II-DSIF-NELF-nucleosome complex Deposited 2023-12-05	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 43 PDB declaration: 46-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1 MN MANGANESE (II) ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
8S51 RNA polymerase II core initially transcribing complex with an ordered RNA of 8 nt Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8S52 RNA polymerase II core initially transcribing complex with an ordered RNA of 10 nt Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
8S54 RNA polymerase II early elongation complex bound to TFIIE and TFIIF - state b (composite structure) Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: 18-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8S55 RNA polymerase II early elongation complex bound to TFIIE and TFIIF - state a (composite structure) Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: 19-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8S5N RNA polymerase II core initially transcribing complex with an ordered RNA of 12 nt Deposited 2024-02-24	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
9ER2 PolII-TCR-STK19 structure. Deposited 2024-03-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 19 PDB declaration: 22-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
9FD2 Structure of Pol II-TC-NER-STK19 complex Deposited 2024-05-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 19 PDB declaration: 22-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
9FYX Influenza A/H7N9 polymerase pre-cleavage cap-snatching complex Deposited 2024-07-04	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 18 PDB declaration: 23-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 9 G1G 7-METHYL-GUANOSINE-5'-TRIPHOSPHATE-5'-(2'-O-METHYL)-GUANOSINE × 1 MG MAGNESIUM ION × 2 PO4 PHOSPHATE ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 8；20 mM BICINE pH 8.0 150 mM NaCl 0.1 mM MgCl2 4% glycerol cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
9G0A Influenza A/H7N9 polymerase post-cleavage cap-snatching complex Deposited 2024-07-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 18 PDB declaration: 23-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 2 G1G 7-METHYL-GUANOSINE-5'-TRIPHOSPHATE-5'-(2'-O-METHYL)-GUANOSINE × 1 PO4 PHOSPHATE ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 8；20 mM BICINE pH 8.0 150 mM NaCl 3 mM MgCl2 4% glycerol cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
9HVO Structure of the transcribing Pol II-RECQL5 complex Deposited 2024-12-31	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: 16-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；20 mM HEPES pH 7.5, 100 mM NaCl, 3 mM MgCl2, 1 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
9HVQ Structure of the transcribing Pol II-DSIF-PAF-SPT6-RECQL5 complex Deposited 2024-12-31	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 21 PDB declaration: 24-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；20 mM HEPES pH 7.5, 50 mM KCl, 4 mM MgCl2, 1 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.00 Å
9HWG Structure of the transcribing Pol II-TCR-RECQL5 complex Deposited 2025-01-03	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 18 PDB declaration: 21-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；20 mM HEPES pH 7.5, 50 mM KCl, 4 mM MgCl2, 1 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
9QEQ Structure of the transcribing Pol II-DSIF-SPT6-U1 snRNP complex Deposited 2025-03-10	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 24 PDB declaration: 28-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；20 mM Hepes, 100 mM NaCl, 3 mM MgCl2, 0.5 mM TCEP cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
9RTT Activated Elongation Complex with IWS1 and ELOF1 Deposited 2025-07-03	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 22 PDB declaration: 25-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.01 Å
9RZE State 2 MAP 3 RNA Pol II activated elongation complex with SETD2 bound to proximal upstream H3 Deposited 2025-07-15	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 31 PDB declaration: 34-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 8.53 Å
9S0U State 3 MAP 3 RNA Pol II activated elongation complex with SETD2 bound to distal upstream H3 Deposited 2025-07-17	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 32 PDB declaration: 35-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.72 Å
9S3G State 1 MAP3 RNA Pol II activated elongation complex with SETD2 and upstream hexasome Deposited 2025-07-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 31 PDB declaration: 34-meric	Chain J 1–67（67 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.40 Å

53 other PDB entries and 53 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	A0A4X1VYD0_PIG
Isoform	—
PDB entities	10
Chains and sequence ranges	Author chain J； PDBConstruct 1–67； UniProt 1–67

RNA polymerase II subunit J

OrganismNot specified

UniProt A0A4X1UK25

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein–DNA Heteromer Protein × 22 DNA 2 PDB declaration: 24-meric（24） Consistent with all polymer counts	Chain K； UniProt 1–117	Not recorded	DNA-directed RNA polymerase subunit × 1 （A0A8D1DPV6） DNA-directed RNA polymerase subunit beta × 1 （I3LGP4） DNA-directed RNA polymerase II subunit RPB3 × 1 （I3LCH3） RNA polymerase II subunit D × 1 （A0A287ADR4） DNA-directed RNA polymerase II subunit E × 1 （I3LSI7） DNA-directed RNA polymerase II subunit F × 1 （F1SKN8） DNA-directed RNA polymerase II subunit RPB7 × 1 （I3LJZ9） DNA-directed RNA polymerases I, II, and III subunit RPABC3 × 1 （A0A4X1ULF2） DNA-directed RNA polymerase II subunit RPB9 × 1 （P60899） DNA-directed RNA polymerases I, II, and III subunit RPABC5 × 1 （A0A4X1VYD0） RNA polymerase II subunit K × 1 （I3LN51） Transcription initiation factor IIB × 1 （Q00403） Non-template strand × 1 TATA-box-binding protein × 1 （P20226） General transcription factor IIF subunit 1 × 1 （P35269） General transcription factor IIF subunit 2 × 1 （P13984） Template strand × 1 Transcription initiation factor IIA subunit 1 × 1 （P52655） Transcription initiation factor IIA subunit 2 × 1 （P52657） snRNA-activating protein complex subunit 1 × 1 （Q16533） snRNA-activating protein complex subunit 3 × 1 （Q92966） snRNA-activating protein complex subunit 4 × 1 （Q5SXM2） snRNA-activating protein complex subunit 5 × 1 （O75971） ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.00 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7ZX8	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
7B7U Cryo-EM structure of mammalian RNA polymerase II in complex with human RPAP2 Deposited 2020-12-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric	Chain K 1–117（117 aa）	Not recorded	ZN ZINC ION × 6	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7EDX p53-bound TFIID-based core PIC on HDM2 promoter Deposited 2021-03-17	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain y 1–117（117 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.50 Å
7EG7 TFIID-based core PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain y 1–117（117 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.20 Å
7EG8 TFIID-based core PIC on PUMA promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain y 1–117（117 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.40 Å
7EG9 TFIID-based intermediate PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 39 PDB declaration: 41-meric	Chain y 1–117（117 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.70 Å
7EGA TFIID-based intermediate PIC on PUMA promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 39 PDB declaration: 41-meric	Chain y 1–117（117 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
7EGB TFIID-based holo PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 49 PDB declaration: 51-meric	Chain y 1–117（117 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
7EGC p53-bound TFIID-based holo PIC on HDM2 promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 49 PDB declaration: 51-meric	Chain y 1–117（117 aa）	Not recorded	ZN ZINC ION × 16 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.90 Å
7ENA TFIID-based PIC-Mediator holo-complex in pre-assembled state (pre-hPIC-MED) Deposited 2021-04-16	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 74 PDB declaration: 76-meric	Chain PK 1–117（117 aa）	Not recorded	ZN ZINC ION × 16 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.07 Å
7ENC TFIID-based PIC-Mediator holo-complex in fully-assembled state (hPIC-MED) Deposited 2021-04-16	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 74 PDB declaration: 76-meric	Chain PK 1–117（117 aa）	Not recorded	ZN ZINC ION × 16 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.13 Å
7F4G Structure of RPAP2-bound RNA polymerase II Deposited 2021-06-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 13 PDB declaration: tridecameric	Chain K 1–117（117 aa）	Not recorded	ZN ZINC ION × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.78 Å
7NVR Human Mediator with RNA Polymerase II Pre-initiation complex Deposited 2021-03-15	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 56 PDB declaration: 58-meric	Chain K 1–117（117 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 18 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.50 Å
7NVS RNA polymerase II core pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain K 1–117（117 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7NVT RNA polymerase II core pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain K 1–117（117 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7NVU RNA polymerase II core pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain K 1–117（117 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
7NVY RNA polymerase II pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain K 1–117（117 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.30 Å
7NVZ RNA polymerase II pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain K 1–117（117 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
7NW0 RNA polymerase II pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain K 1–117（117 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 15 ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 2 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.60 Å
7OKX Structure of active transcription elongation complex Pol II-DSIF (SPT5-KOW5)-ELL2-EAF1 (composite structure) Deposited 2021-05-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain K 1–117（117 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
7OKY Structure of active transcription elongation complex Pol II-DSIF-ELL2-EAF1(composite structure) Deposited 2021-05-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain K 1–117（117 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 9	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.14 Å
7OL0 Structure of active transcription elongation complex Pol II-DSIF (SPT5-KOW5) Deposited 2021-05-18	Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain K 1–117（117 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OO3 Pol II-CSB-CSA-DDB1-UVSSA (Structure1) Deposited 2021-05-26	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 17 PDB declaration: eicosameric	Chain K 1–117（117 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7OOB Pol II-CSB-CSA-DDB1-UVSSA-ADPBeF3 (Structure2) Deposited 2021-05-27	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain K 1–117（117 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.70 Å
7OOP Pol II-CSB-CSA-DDB1-UVSSA-PAF-SPT6 (Structure 3) Deposited 2021-05-28	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 23 PDB declaration: 26-meric	Chain K 1–117（117 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7OPC Pol II-CSB-CRL4CSA-UVSSA-SPT6-PAF (Structure 4) Deposited 2021-05-31	Different oligomeric state Different ligand/ion	Assembly 1 Other combination Heteromer；Protein × 25 PDB declaration: 28-meric	Chain K 1–117（117 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OPD Pol II-CSB-CRL4CSA-UVSSA-SPT6-PAF (Structure 5) Deposited 2021-05-31	Different oligomeric state Different ligand/ion	Assembly 1 Other combination Heteromer；Protein × 25 PDB declaration: 28-meric	Chain K 1–117（117 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OZN RNA Polymerase II dimer (Class 1) Deposited 2021-06-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric	Chain K 1–117（117 aa） Chain W 1–117（117 aa）	Not recorded	ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
7OZO RNA Polymerase II dimer (Class 2) Deposited 2021-06-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric	Chain K 1–117（117 aa） Chain W 1–117（117 aa）	Not recorded	ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
7OZP RNA Polymerase II dimer (Class 3) Deposited 2021-06-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric	Chain K 1–117（117 aa） Chain W 1–117（117 aa）	Not recorded	ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
7PKS Structural basis of Integrator-mediated transcription regulation Deposited 2021-08-26	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 30 PDB declaration: 31-meric	Chain K 1–117（117 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 10 MN MANGANESE (II) ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
7YCX The structure of INTAC-PEC complex Deposited 2022-07-02	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 31 PDB declaration: 34-meric	Chain 9 1–117（117 aa）	Not recorded	ZN ZINC ION × 10 MN MANGANESE (II) ION × 2 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.18 Å
7ZWD Structure of SNAPc containing Pol II pre-initiation complex bound to U5 snRNA promoter (CC) Deposited 2022-05-19	Parsed fields agree	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain K 1–117（117 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7ZX7 Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (CC) Deposited 2022-05-20	Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain K 1–117（117 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8B3D Structure of the Pol II-TCR-ELOF1 complex. Deposited 2022-09-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 17 PDB declaration: eicosameric	Chain K 1–117（117 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.60 Å
8B3F Pol II-CSB-CSA-DDB1-ELOF1 Deposited 2022-09-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain K 1–117（117 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8GXQ PIC-Mediator in complex with +1 nucleosome (T40N) in MH-binding state Deposited 2022-09-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 83 PDB declaration: 87-meric	Chain PK 1–117（117 aa）	Not recorded	ZN ZINC ION × 19 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.04 Å
8GXS PIC-Mediator in complex with +1 nucleosome (T40N) in H-binding state Deposited 2022-09-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 83 PDB declaration: 87-meric	Chain PK 1–117（117 aa）	Not recorded	ZN ZINC ION × 19 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.16 Å

37 other PDB entries and 37 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	A0A4X1UK25_PIG
Isoform	—
PDB entities	11
Chains and sequence ranges	Author chain K； PDBConstruct 1–117； UniProt 1–117

RNA polymerase II subunit K

OrganismNot specified

UniProt I3LN51

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein–DNA Heteromer Protein × 22 DNA 2 PDB declaration: 24-meric（24） Consistent with all polymer counts	Chain L； UniProt 1–58	Not recorded	DNA-directed RNA polymerase subunit × 1 （A0A8D1DPV6） DNA-directed RNA polymerase subunit beta × 1 （I3LGP4） DNA-directed RNA polymerase II subunit RPB3 × 1 （I3LCH3） RNA polymerase II subunit D × 1 （A0A287ADR4） DNA-directed RNA polymerase II subunit E × 1 （I3LSI7） DNA-directed RNA polymerase II subunit F × 1 （F1SKN8） DNA-directed RNA polymerase II subunit RPB7 × 1 （I3LJZ9） DNA-directed RNA polymerases I, II, and III subunit RPABC3 × 1 （A0A4X1ULF2） DNA-directed RNA polymerase II subunit RPB9 × 1 （P60899） DNA-directed RNA polymerases I, II, and III subunit RPABC5 × 1 （A0A4X1VYD0） RNA polymerase II subunit J × 1 （A0A4X1UK25） Transcription initiation factor IIB × 1 （Q00403） Non-template strand × 1 TATA-box-binding protein × 1 （P20226） General transcription factor IIF subunit 1 × 1 （P35269） General transcription factor IIF subunit 2 × 1 （P13984） Template strand × 1 Transcription initiation factor IIA subunit 1 × 1 （P52655） Transcription initiation factor IIA subunit 2 × 1 （P52657） snRNA-activating protein complex subunit 1 × 1 （Q16533） snRNA-activating protein complex subunit 3 × 1 （Q92966） snRNA-activating protein complex subunit 4 × 1 （Q5SXM2） snRNA-activating protein complex subunit 5 × 1 （O75971） ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.00 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7ZX8	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
6EXV Structure of mammalian RNA polymerase II elongation complex inhibited by Alpha-amanitin Deposited 2017-11-09	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain L 1–58（58 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
6GMH Structure of activated transcription complex Pol II-DSIF-PAF-SPT6 Deposited 2018-05-26	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: heptadecameric	Chain L 1–58（58 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE；10s wait prior to blotting, blotting 8.5s	Resolution 3.10 Å
6GML Structure of paused transcription complex Pol II-DSIF-NELF Deposited 2018-05-27	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 18 PDB declaration: 21-meric	Chain L 1–58（58 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 9	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
6TED Structure of complete, activated transcription complex Pol II-DSIF-PAF-SPT6 uncovers allosteric elongation activation by RTF1 Deposited 2019-11-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 21 PDB declaration: 24-meric	Chain L 1–58（58 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE；2 microliters applied to both sides of grid. Sample incubated on grid for 10s prior to blotting. Blotting for 8.5s.	Resolution 3.10 Å
7B0Y Structure of a transcribing RNA polymerase II-U1 snRNP complex Deposited 2020-11-23	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 21 PDB declaration: 25-meric	Chain L 1–58（58 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
7B7U Cryo-EM structure of mammalian RNA polymerase II in complex with human RPAP2 Deposited 2020-12-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric	Chain L 1–58（58 aa）	Not recorded	ZN ZINC ION × 6	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7NVR Human Mediator with RNA Polymerase II Pre-initiation complex Deposited 2021-03-15	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 56 PDB declaration: 58-meric	Chain L 1–58（58 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 18 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.50 Å
7NVS RNA polymerase II core pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain L 1–58（58 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7NVT RNA polymerase II core pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain L 1–58（58 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7NVU RNA polymerase II core pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain L 1–58（58 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
7NVY RNA polymerase II pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain L 1–58（58 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.30 Å
7NVZ RNA polymerase II pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain L 1–58（58 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
7NW0 RNA polymerase II pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain L 1–58（58 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 15 ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 2 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.60 Å
7OKX Structure of active transcription elongation complex Pol II-DSIF (SPT5-KOW5)-ELL2-EAF1 (composite structure) Deposited 2021-05-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain L 1–58（58 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
7OKY Structure of active transcription elongation complex Pol II-DSIF-ELL2-EAF1(composite structure) Deposited 2021-05-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain L 1–58（58 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 9	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.14 Å
7OL0 Structure of active transcription elongation complex Pol II-DSIF (SPT5-KOW5) Deposited 2021-05-18	Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain L 1–58（58 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OO3 Pol II-CSB-CSA-DDB1-UVSSA (Structure1) Deposited 2021-05-26	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 17 PDB declaration: eicosameric	Chain L 1–58（58 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7OOB Pol II-CSB-CSA-DDB1-UVSSA-ADPBeF3 (Structure2) Deposited 2021-05-27	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain L 1–58（58 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.70 Å
7OOP Pol II-CSB-CSA-DDB1-UVSSA-PAF-SPT6 (Structure 3) Deposited 2021-05-28	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 23 PDB declaration: 26-meric	Chain L 1–58（58 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7OPC Pol II-CSB-CRL4CSA-UVSSA-SPT6-PAF (Structure 4) Deposited 2021-05-31	Different oligomeric state Different ligand/ion	Assembly 1 Other combination Heteromer；Protein × 25 PDB declaration: 28-meric	Chain L 1–58（58 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OPD Pol II-CSB-CRL4CSA-UVSSA-SPT6-PAF (Structure 5) Deposited 2021-05-31	Different oligomeric state Different ligand/ion	Assembly 1 Other combination Heteromer；Protein × 25 PDB declaration: 28-meric	Chain L 1–58（58 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OZN RNA Polymerase II dimer (Class 1) Deposited 2021-06-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric	Chain L 1–58（58 aa） Chain X 1–58（58 aa）	Not recorded	ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
7OZO RNA Polymerase II dimer (Class 2) Deposited 2021-06-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric	Chain L 1–58（58 aa） Chain X 1–58（58 aa）	Not recorded	ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
7OZP RNA Polymerase II dimer (Class 3) Deposited 2021-06-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric	Chain L 1–58（58 aa） Chain X 1–58（58 aa）	Not recorded	ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
7PKS Structural basis of Integrator-mediated transcription regulation Deposited 2021-08-26	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 30 PDB declaration: 31-meric	Chain L 1–58（58 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 10 MN MANGANESE (II) ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
7ZWD Structure of SNAPc containing Pol II pre-initiation complex bound to U5 snRNA promoter (CC) Deposited 2022-05-19	Parsed fields agree	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain L 1–58（58 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7ZX7 Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (CC) Deposited 2022-05-20	Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain L 1–58（58 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8B3D Structure of the Pol II-TCR-ELOF1 complex. Deposited 2022-09-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 17 PDB declaration: eicosameric	Chain L 1–58（58 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.60 Å
8B3F Pol II-CSB-CSA-DDB1-ELOF1 Deposited 2022-09-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain L 1–58（58 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8BVW RNA polymerase II pre-initiation complex with the distal +1 nucleosome (PIC-Nuc18W) Deposited 2022-12-20	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 40 PDB declaration: 42-meric	Chain L 1–58（58 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.00 Å
8BYQ RNA polymerase II pre-initiation complex with the proximal +1 nucleosome (PIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 38 PDB declaration: 40-meric	Chain L 1–58（58 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 16 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
8BZ1 RNA polymerase II core pre-initiation complex with the proximal +1 nucleosome (cPIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 26 PDB declaration: 28-meric	Chain L 1–58（58 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8OEU Structure of the mammalian Pol II-SPT6 complex (composite structure, Structure 4) Deposited 2023-03-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain L 1–58（58 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.04 Å
8OEV Structure of the mammalian Pol II-SPT6-Elongin complex, lacking ELOA latch (composite structure, structure 3) Deposited 2023-03-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain L 1–58（58 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.86 Å
8OEW Structure of the mammalian Pol II-Elongin complex, lacking the ELOA latch (composite structure, structure 2) Deposited 2023-03-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain L 1–58（58 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
8OF0 Structure of the mammalian Pol II-SPT6-Elongin complex, Structure 1 Deposited 2023-03-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: nonadecameric	Chain L 1–58（58 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.05 Å
8P4A Structural insights into human co-transcriptional capping - structure 1 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain L 1–58（58 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8P4B Structural insights into human co-transcriptional capping - structure 2 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 13 PDB declaration: hexadecameric	Chain L 1–58（58 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
8P4C Structural insights into human co-transcriptional capping - structure 3 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain L 1–58（58 aa）	Not recorded	ZN ZINC ION × 3 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8P4D Structural insights into human co-transcriptional capping - structure 4 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain L 1–58（58 aa）	Not recorded	ZN ZINC ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8P4E Structural insights into human co-transcriptional capping - structure 5 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain L 1–58（58 aa）	Not recorded	MG MAGNESIUM ION × 1 ZN ZINC ION × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.90 Å
8P4F Structural insights into human co-transcriptional capping - structure 6 Deposited 2023-05-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain L 1–58（58 aa）	Not recorded	MGT 7N-METHYL-8-HYDROGUANOSINE-5'-TRIPHOSPHATE × 1 ZN ZINC ION × 8 MG MAGNESIUM ION × 1 SAM S-ADENOSYLMETHIONINE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.00 Å

42 other PDB entries and 42 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	I3LN51_PIG
Isoform	—
PDB entities	12
Chains and sequence ranges	Author chain L； PDBConstruct 1–58； UniProt 1–58

Transcription initiation factor IIB

Homo sapiens

UniProt Q00403

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein–DNA Heteromer Protein × 22 DNA 2 PDB declaration: 24-meric（24） Consistent with all polymer counts	Chain M； UniProt 1–316	Not recorded	DNA-directed RNA polymerase subunit × 1 （A0A8D1DPV6） DNA-directed RNA polymerase subunit beta × 1 （I3LGP4） DNA-directed RNA polymerase II subunit RPB3 × 1 （I3LCH3） RNA polymerase II subunit D × 1 （A0A287ADR4） DNA-directed RNA polymerase II subunit E × 1 （I3LSI7） DNA-directed RNA polymerase II subunit F × 1 （F1SKN8） DNA-directed RNA polymerase II subunit RPB7 × 1 （I3LJZ9） DNA-directed RNA polymerases I, II, and III subunit RPABC3 × 1 （A0A4X1ULF2） DNA-directed RNA polymerase II subunit RPB9 × 1 （P60899） DNA-directed RNA polymerases I, II, and III subunit RPABC5 × 1 （A0A4X1VYD0） RNA polymerase II subunit J × 1 （A0A4X1UK25） RNA polymerase II subunit K × 1 （I3LN51） Non-template strand × 1 TATA-box-binding protein × 1 （P20226） General transcription factor IIF subunit 1 × 1 （P35269） General transcription factor IIF subunit 2 × 1 （P13984） Template strand × 1 Transcription initiation factor IIA subunit 1 × 1 （P52655） Transcription initiation factor IIA subunit 2 × 1 （P52657） snRNA-activating protein complex subunit 1 × 1 （Q16533） snRNA-activating protein complex subunit 3 × 1 （Q92966） snRNA-activating protein complex subunit 4 × 1 （Q5SXM2） snRNA-activating protein complex subunit 5 × 1 （O75971） ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.00 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7ZX8	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
1C9B CRYSTAL STRUCTURE OF A HUMAN TBP CORE DOMAIN-HUMAN TFIIB CORE DOMAIN COMPLEX BOUND TO AN EXTENDED, MODIFIED ADENOVIRAL MAJOR LATE PROMOTER (ADMLP) Deposited 1999-08-01	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 2 PDB declaration: tetrameric	Chain A 110–316（207 aa） Fragment：C-TERMINAL CORE DOMAIN	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；277 K；PEG 8000, TRIS.HCL, AMMONIUM ACETATE, MAGNESIUM CHLORIDE, POTASSIUM CHLORIDE, SODIUM CITRATE, DTT, GLYCEROL, VAPOR DIFFUSION, HANGING DROP, temperature 277.0K	Resolution 2.65 Å R-free 0.260
1C9B CRYSTAL STRUCTURE OF A HUMAN TBP CORE DOMAIN-HUMAN TFIIB CORE DOMAIN COMPLEX BOUND TO AN EXTENDED, MODIFIED ADENOVIRAL MAJOR LATE PROMOTER (ADMLP) Deposited 1999-08-01	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein–DNA Heteromer；Protein × 2 PDB declaration: tetrameric	Chain E 110–316（207 aa） Fragment：C-TERMINAL CORE DOMAIN	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；277 K；PEG 8000, TRIS.HCL, AMMONIUM ACETATE, MAGNESIUM CHLORIDE, POTASSIUM CHLORIDE, SODIUM CITRATE, DTT, GLYCEROL, VAPOR DIFFUSION, HANGING DROP, temperature 277.0K	Resolution 2.65 Å R-free 0.260
1C9B CRYSTAL STRUCTURE OF A HUMAN TBP CORE DOMAIN-HUMAN TFIIB CORE DOMAIN COMPLEX BOUND TO AN EXTENDED, MODIFIED ADENOVIRAL MAJOR LATE PROMOTER (ADMLP) Deposited 1999-08-01	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 3 Protein–DNA Heteromer；Protein × 2 PDB declaration: tetrameric	Chain I 110–316（207 aa） Fragment：C-TERMINAL CORE DOMAIN	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；277 K；PEG 8000, TRIS.HCL, AMMONIUM ACETATE, MAGNESIUM CHLORIDE, POTASSIUM CHLORIDE, SODIUM CITRATE, DTT, GLYCEROL, VAPOR DIFFUSION, HANGING DROP, temperature 277.0K	Resolution 2.65 Å R-free 0.260
1C9B CRYSTAL STRUCTURE OF A HUMAN TBP CORE DOMAIN-HUMAN TFIIB CORE DOMAIN COMPLEX BOUND TO AN EXTENDED, MODIFIED ADENOVIRAL MAJOR LATE PROMOTER (ADMLP) Deposited 1999-08-01	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 4 Protein–DNA Heteromer；Protein × 2 PDB declaration: tetrameric	Chain M 110–316（207 aa） Fragment：C-TERMINAL CORE DOMAIN	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；277 K；PEG 8000, TRIS.HCL, AMMONIUM ACETATE, MAGNESIUM CHLORIDE, POTASSIUM CHLORIDE, SODIUM CITRATE, DTT, GLYCEROL, VAPOR DIFFUSION, HANGING DROP, temperature 277.0K	Resolution 2.65 Å R-free 0.260
1C9B CRYSTAL STRUCTURE OF A HUMAN TBP CORE DOMAIN-HUMAN TFIIB CORE DOMAIN COMPLEX BOUND TO AN EXTENDED, MODIFIED ADENOVIRAL MAJOR LATE PROMOTER (ADMLP) Deposited 1999-08-01	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 5 Protein–DNA Heteromer；Protein × 2 PDB declaration: tetrameric	Chain Q 110–316（207 aa） Fragment：C-TERMINAL CORE DOMAIN	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；277 K；PEG 8000, TRIS.HCL, AMMONIUM ACETATE, MAGNESIUM CHLORIDE, POTASSIUM CHLORIDE, SODIUM CITRATE, DTT, GLYCEROL, VAPOR DIFFUSION, HANGING DROP, temperature 277.0K	Resolution 2.65 Å R-free 0.260
1DL6 SOLUTION STRUCTURE OF HUMAN TFIIB N-TERMINAL DOMAIN Deposited 1999-12-08	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 2–59（58 aa） Fragment：N-TERMINAL DOMAIN	Not recorded	ZN ZINC ION × 1	SOLUTION NMR NMR measurement conditions pH 7；298 K；Pressure AMBIENT NMR sample composition 3MM HTFIIB N-TERMINAL DOMAIN U-15N; 50MM PHOSPHATE; 90% H2O, 10% D2O	Resolution not provided
1RLY RDC-derived models of the zinc ribbon domain of human general transcription TFIIB (zinc bound structures) Deposited 2003-11-26	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–60（60 aa）	Not recorded	ZN ZINC ION × 1	SOLUTION NMR NMR measurement conditions pH 6.5；298 K；Pressure ambient NMR sample composition 0.6mM TFIIB Uniform labeling with 15N: U-98% 15N, 20mM [2H4]-imidazole hydrochloride, 2.5mM ZnCl2, 5% glycerol, 20mM sodium sulfate at pH 6.5, 95% H2O/5% D2O \| 95% H2O/5% D2O NMR sample composition 0.6mM TFIIB Uniform labeling with 15N: U-98% 15N, 20mM [2H4]-imidazole hydrochloride, 2.5mM ZnCl2, 5% glycerol, 20mM sodium sulfate at pH 6.5, 12mg/mL of filamentous phage, Pf1, 95% H2O/5% D2O \| 95% H2O/5% D2O	Resolution not provided
1RO4 RDC-derived models of the zinc ribbon domain of human general transcription factor TFIIB (zinc free structures) Deposited 2003-12-01	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–60（60 aa）	Not recorded	No recorded non-water small molecule	SOLUTION NMR NMR measurement conditions pH 6.5；298 K；Pressure ambient NMR sample composition 0.6mM TFIIB Uniform labeling with 15N: U-98% 15N, 20mM [2H4]-imidazole hydrochloride, 5% glycerol and 20mM sodium sulfate at pH 6.5, 95% H2O/5% D2O \| 95% H2O/5% D2O NMR sample composition 0.6mM TFIIB Uniform labeling with 15N: U-98% 15N, 20mM [2H4]-imidazole hydrochloride, 5% glycerol and 20mM sodium sulfate at pH 6.5, 12mg/mL of filamentous phage, Pf1, 95% H2O/5% D2O \| 95% H2O/5% D2O	Resolution not provided
1TFB NMR STUDIES OF HUMAN GENERAL TRANSCRIPTION FACTOR TFIIB: DYNAMICS AND INTERACTION WITH VP16 ACTIVATION DOMAIN, 20 STRUCTURES Deposited 1996-11-14	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 112–316（205 aa） Fragment：CONSTRUCT COMPRISES RESIDUES 1 - 3 AND 112 - 316 OF FULL LENGTH HUMAN TFIIB	Mutation：DEL(4 - 111)	No recorded non-water small molecule	SOLUTION NMR mmCIF provides none of the parsed conditions	Resolution not provided
1VOL TFIIB (HUMAN CORE DOMAIN)/TBP (A.THALIANA)/TATA ELEMENT TERNARY COMPLEX Deposited 1996-04-29	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 2 PDB declaration: tetrameric	Chain A 113–316（204 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION mmCIF provides none of the parsed conditions	Resolution 2.70 Å R-free 0.318
2PHG Model for VP16 binding to TFIIB Deposited 2007-04-11	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 112–316（205 aa） Fragment：c-terminal core domain	Mutation：D111S	No recorded non-water small molecule	SOLUTION NMR NMR measurement conditions pH 5.6；298 K；Ionic strength (raw mmCIF value) 100 mM；Pressure 1 NMR sample composition 0.2 mM VP16ad U-15N, 0-0.2 mM TFIIBc, 50 mM KCl, 50 mM phosphate buffer pH 5.6, 95% H2O, 5% D2O \| 95% H2O/5% D2O	Resolution not provided
5IY6 Human holo-PIC in the closed state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 27 PDB declaration: 29-meric	Chain M 1–316（316 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 7.20 Å
5IY7 Human holo-PIC in the open state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 27 PDB declaration: 29-meric	Chain M 1–316（316 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 8.60 Å
5IY8 Human holo-PIC in the initial transcribing state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 27 PDB declaration: 29-meric	Chain M 1–316（316 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 7.90 Å
5IY9 Human holo-PIC in the initial transcribing state (no IIS) Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 26 PDB declaration: 29-meric	Chain M 1–316（316 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 6.30 Å
5IYA Human core-PIC in the closed state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric	Chain M 1–316（316 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 5.40 Å
5IYB Human core-PIC in the open state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric	Chain M 1–316（316 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 3.90 Å
5IYC Human core-PIC in the initial transcribing state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric	Chain M 1–316（316 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 3.90 Å
5IYD Human core-PIC in the initial transcribing state (no IIS) Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain M 1–316（316 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 3.90 Å
5WH1 Apo form of the C-terminal region of human Transcription Factor IIB Deposited 2017-07-14	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 107–316（210 aa） Fragment：C-terminal residues 107-316	Not recorded	SO4 SULFATE ION × 5	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.5；298 K；100 mM sodium acetate trihydrate pH 4.5, 2 M ammonium sulfate	Resolution 3.39 Å R-free 0.214
5WH1 Apo form of the C-terminal region of human Transcription Factor IIB Deposited 2017-07-14	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain B 107–316（210 aa） Fragment：C-terminal residues 107-316	Not recorded	SO4 SULFATE ION × 5	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.5；298 K；100 mM sodium acetate trihydrate pH 4.5, 2 M ammonium sulfate	Resolution 3.39 Å R-free 0.214
5WH1 Apo form of the C-terminal region of human Transcription Factor IIB Deposited 2017-07-14	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain C 107–316（210 aa） Fragment：C-terminal residues 107-316	Not recorded	SO4 SULFATE ION × 8	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.5；298 K；100 mM sodium acetate trihydrate pH 4.5, 2 M ammonium sulfate	Resolution 3.39 Å R-free 0.214
5WH1 Apo form of the C-terminal region of human Transcription Factor IIB Deposited 2017-07-14	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain D 107–316（210 aa） Fragment：C-terminal residues 107-316	Not recorded	SO4 SULFATE ION × 8	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.5；298 K；100 mM sodium acetate trihydrate pH 4.5, 2 M ammonium sulfate	Resolution 3.39 Å R-free 0.214
6O9L Human holo-PIC in the closed state Deposited 2019-03-14	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 31 PDB declaration: 33-meric	Chain M 1–316（316 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
7EDX p53-bound TFIID-based core PIC on HDM2 promoter Deposited 2021-03-17	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain R 1–316（316 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.50 Å
7EG7 TFIID-based core PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain R 1–316（316 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.20 Å
7EG8 TFIID-based core PIC on PUMA promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain R 1–316（316 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.40 Å
7EG9 TFIID-based intermediate PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 39 PDB declaration: 41-meric	Chain R 1–316（316 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.70 Å
7EGA TFIID-based intermediate PIC on PUMA promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 39 PDB declaration: 41-meric	Chain R 1–316（316 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
7EGB TFIID-based holo PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 49 PDB declaration: 51-meric	Chain R 1–316（316 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
7EGC p53-bound TFIID-based holo PIC on HDM2 promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 49 PDB declaration: 51-meric	Chain R 1–316（316 aa）	Not recorded	ZN ZINC ION × 16 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.90 Å
7ENA TFIID-based PIC-Mediator holo-complex in pre-assembled state (pre-hPIC-MED) Deposited 2021-04-16	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 74 PDB declaration: 76-meric	Chain BA 1–316（316 aa）	Not recorded	ZN ZINC ION × 16 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.07 Å
7ENC TFIID-based PIC-Mediator holo-complex in fully-assembled state (hPIC-MED) Deposited 2021-04-16	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 74 PDB declaration: 76-meric	Chain BA 1–316（316 aa）	Not recorded	ZN ZINC ION × 16 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.13 Å
7LBM Structure of the human Mediator-bound transcription pre-initiation complex Deposited 2021-01-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 54 PDB declaration: 56-meric	Chain O 1–316（316 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 16 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.80 Å
7NVR Human Mediator with RNA Polymerase II Pre-initiation complex Deposited 2021-03-15	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 56 PDB declaration: 58-meric	Chain M 1–316（316 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 18 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.50 Å
7NVS RNA polymerase II core pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain M 1–316（316 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7NVT RNA polymerase II core pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain M 1–316（316 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7NVU RNA polymerase II core pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain M 1–316（316 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
7NVY RNA polymerase II pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain M 1–316（316 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.30 Å
7NVZ RNA polymerase II pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain M 1–316（316 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
7NW0 RNA polymerase II pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain M 1–316（316 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 15 ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 2 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.60 Å
7ZWC Structure of SNAPc:TBP-TFIIA-TFIIB sub-complex bound to U5 snRNA promoter Deposited 2022-05-19	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric	Chain M 1–316（316 aa）	Not recorded	ZN ZINC ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
7ZWD Structure of SNAPc containing Pol II pre-initiation complex bound to U5 snRNA promoter (CC) Deposited 2022-05-19	Parsed fields agree	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain M 1–316（316 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7ZX7 Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (CC) Deposited 2022-05-20	Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain M 1–316（316 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
7ZXE Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (OC) Deposited 2022-05-20	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric	Chain M 1–316（316 aa）	Not recorded	ZN ZINC ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
8BVW RNA polymerase II pre-initiation complex with the distal +1 nucleosome (PIC-Nuc18W) Deposited 2022-12-20	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 40 PDB declaration: 42-meric	Chain M 1–316（316 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.00 Å
8BYQ RNA polymerase II pre-initiation complex with the proximal +1 nucleosome (PIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 38 PDB declaration: 40-meric	Chain M 1–316（316 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 16 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
8BZ1 RNA polymerase II core pre-initiation complex with the proximal +1 nucleosome (cPIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 26 PDB declaration: 28-meric	Chain M 1–316（316 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8GXQ PIC-Mediator in complex with +1 nucleosome (T40N) in MH-binding state Deposited 2022-09-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 83 PDB declaration: 87-meric	Chain BA 1–316（316 aa）	Not recorded	ZN ZINC ION × 19 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.04 Å
8GXS PIC-Mediator in complex with +1 nucleosome (T40N) in H-binding state Deposited 2022-09-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 83 PDB declaration: 87-meric	Chain BA 1–316（316 aa）	Not recorded	ZN ZINC ION × 19 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.16 Å
8S51 RNA polymerase II core initially transcribing complex with an ordered RNA of 8 nt Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain M 1–316（316 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8S52 RNA polymerase II core initially transcribing complex with an ordered RNA of 10 nt Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain M 1–316（316 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
8S5N RNA polymerase II core initially transcribing complex with an ordered RNA of 12 nt Deposited 2024-02-24	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain M 1–316（316 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8WAK Structure of transcribing complex 2 (TC2), the initially transcribing complex with Pol II positioned 2nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain R 1–316（316 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.47 Å
8WAL Structure of transcribing complex 3 (TC3), the initially transcribing complex with Pol II positioned 3nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain R 1–316（316 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 8.52 Å
8WAN Structure of transcribing complex 4 (TC4), the initially transcribing complex with Pol II positioned 4nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain R 1–316（316 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.07 Å
8WAO Structure of transcribing complex 5 (TC5), the initially transcribing complex with Pol II positioned 5nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain R 1–316（316 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.40 Å
8WAP Structure of transcribing complex 6 (TC6), the initially transcribing complex with Pol II positioned 6nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain R 1–316（316 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.85 Å
8WAQ Structure of transcribing complex 7 (TC7), the initially transcribing complex with Pol II positioned 7nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain R 1–316（316 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.29 Å
8WAR Structure of transcribing complex 8 (TC8), the initially transcribing complex with Pol II positioned 8nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain R 1–316（316 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
8WAS Structure of transcribing complex 9 (TC9), the initially transcribing complex with Pol II positioned 9nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain R 1–316（316 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.13 Å

54 other PDB entries and 61 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	TF2B_HUMAN
Isoform	—
PDB entities	13
Chains and sequence ranges	Author chain M； PDBConstruct 1–316； UniProt 1–316

TATA-box-binding protein

Homo sapiens

UniProt P20226

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein–DNA Heteromer Protein × 22 DNA 2 PDB declaration: 24-meric（24） Consistent with all polymer counts	Chain O； UniProt 1–339	Not recorded	DNA-directed RNA polymerase subunit × 1 （A0A8D1DPV6） DNA-directed RNA polymerase subunit beta × 1 （I3LGP4） DNA-directed RNA polymerase II subunit RPB3 × 1 （I3LCH3） RNA polymerase II subunit D × 1 （A0A287ADR4） DNA-directed RNA polymerase II subunit E × 1 （I3LSI7） DNA-directed RNA polymerase II subunit F × 1 （F1SKN8） DNA-directed RNA polymerase II subunit RPB7 × 1 （I3LJZ9） DNA-directed RNA polymerases I, II, and III subunit RPABC3 × 1 （A0A4X1ULF2） DNA-directed RNA polymerase II subunit RPB9 × 1 （P60899） DNA-directed RNA polymerases I, II, and III subunit RPABC5 × 1 （A0A4X1VYD0） RNA polymerase II subunit J × 1 （A0A4X1UK25） RNA polymerase II subunit K × 1 （I3LN51） Transcription initiation factor IIB × 1 （Q00403） Non-template strand × 1 General transcription factor IIF subunit 1 × 1 （P35269） General transcription factor IIF subunit 2 × 1 （P13984） Template strand × 1 Transcription initiation factor IIA subunit 1 × 1 （P52655） Transcription initiation factor IIA subunit 2 × 1 （P52657） snRNA-activating protein complex subunit 1 × 1 （Q16533） snRNA-activating protein complex subunit 3 × 1 （Q92966） snRNA-activating protein complex subunit 4 × 1 （Q5SXM2） snRNA-activating protein complex subunit 5 × 1 （O75971） ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.00 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7ZX8	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
1C9B CRYSTAL STRUCTURE OF A HUMAN TBP CORE DOMAIN-HUMAN TFIIB CORE DOMAIN COMPLEX BOUND TO AN EXTENDED, MODIFIED ADENOVIRAL MAJOR LATE PROMOTER (ADMLP) Deposited 1999-08-01	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 2 PDB declaration: tetrameric	Chain B 158–337（180 aa） Fragment：C-TERMINAL CORE DOMAIN	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；277 K；PEG 8000, TRIS.HCL, AMMONIUM ACETATE, MAGNESIUM CHLORIDE, POTASSIUM CHLORIDE, SODIUM CITRATE, DTT, GLYCEROL, VAPOR DIFFUSION, HANGING DROP, temperature 277.0K	Resolution 2.65 Å R-free 0.260
1C9B CRYSTAL STRUCTURE OF A HUMAN TBP CORE DOMAIN-HUMAN TFIIB CORE DOMAIN COMPLEX BOUND TO AN EXTENDED, MODIFIED ADENOVIRAL MAJOR LATE PROMOTER (ADMLP) Deposited 1999-08-01	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein–DNA Heteromer；Protein × 2 PDB declaration: tetrameric	Chain F 158–337（180 aa） Fragment：C-TERMINAL CORE DOMAIN	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；277 K；PEG 8000, TRIS.HCL, AMMONIUM ACETATE, MAGNESIUM CHLORIDE, POTASSIUM CHLORIDE, SODIUM CITRATE, DTT, GLYCEROL, VAPOR DIFFUSION, HANGING DROP, temperature 277.0K	Resolution 2.65 Å R-free 0.260
1C9B CRYSTAL STRUCTURE OF A HUMAN TBP CORE DOMAIN-HUMAN TFIIB CORE DOMAIN COMPLEX BOUND TO AN EXTENDED, MODIFIED ADENOVIRAL MAJOR LATE PROMOTER (ADMLP) Deposited 1999-08-01	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 3 Protein–DNA Heteromer；Protein × 2 PDB declaration: tetrameric	Chain J 158–337（180 aa） Fragment：C-TERMINAL CORE DOMAIN	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；277 K；PEG 8000, TRIS.HCL, AMMONIUM ACETATE, MAGNESIUM CHLORIDE, POTASSIUM CHLORIDE, SODIUM CITRATE, DTT, GLYCEROL, VAPOR DIFFUSION, HANGING DROP, temperature 277.0K	Resolution 2.65 Å R-free 0.260
1C9B CRYSTAL STRUCTURE OF A HUMAN TBP CORE DOMAIN-HUMAN TFIIB CORE DOMAIN COMPLEX BOUND TO AN EXTENDED, MODIFIED ADENOVIRAL MAJOR LATE PROMOTER (ADMLP) Deposited 1999-08-01	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 4 Protein–DNA Heteromer；Protein × 2 PDB declaration: tetrameric	Chain N 158–337（180 aa） Fragment：C-TERMINAL CORE DOMAIN	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；277 K；PEG 8000, TRIS.HCL, AMMONIUM ACETATE, MAGNESIUM CHLORIDE, POTASSIUM CHLORIDE, SODIUM CITRATE, DTT, GLYCEROL, VAPOR DIFFUSION, HANGING DROP, temperature 277.0K	Resolution 2.65 Å R-free 0.260
1C9B CRYSTAL STRUCTURE OF A HUMAN TBP CORE DOMAIN-HUMAN TFIIB CORE DOMAIN COMPLEX BOUND TO AN EXTENDED, MODIFIED ADENOVIRAL MAJOR LATE PROMOTER (ADMLP) Deposited 1999-08-01	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 5 Protein–DNA Heteromer；Protein × 2 PDB declaration: tetrameric	Chain R 158–337（180 aa） Fragment：C-TERMINAL CORE DOMAIN	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；277 K；PEG 8000, TRIS.HCL, AMMONIUM ACETATE, MAGNESIUM CHLORIDE, POTASSIUM CHLORIDE, SODIUM CITRATE, DTT, GLYCEROL, VAPOR DIFFUSION, HANGING DROP, temperature 277.0K	Resolution 2.65 Å R-free 0.260
1CDW HUMAN TBP CORE DOMAIN COMPLEXED WITH DNA Deposited 1996-04-11	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric	Chain A 159–337（179 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION mmCIF provides none of the parsed conditions	Resolution 1.90 Å R-free 0.258
1JFI Crystal Structure of the NC2-TBP-DNA Ternary Complex Deposited 2001-06-20	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain C 159–339（181 aa） Fragment：RESIDUES 359-539	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.5；293 K；PEG 4000, sodium citrate, potassium chloride, magnesium chloride, DTT, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 2.62 Å R-free 0.277
1NVP HUMAN TFIIA/TBP/DNA COMPLEX Deposited 2003-02-04	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 4 PDB declaration: hexameric	Chain A 159–339（181 aa） Fragment：C-TERMINAL 181 AMINO ACIDS	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；295 K；PEG6000, lithium nitrate, calcium chloride, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K	Resolution 2.10 Å R-free 0.247
1TGH TATA BINDING PROTEIN (TBP)/DNA COMPLEX Deposited 1996-02-13	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric	Chain A 113–297（185 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions pH 8；pH 8.00	Resolution 2.90 Å R-free 0.294
4ROC Human TFIIB-related factor 2 (Brf2) and TBP bound to U6#2 promoter Deposited 2014-10-28	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 2 PDB declaration: tetrameric	Chain B 159–339（181 aa）	Not recorded	MG MAGNESIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.9；293 K；10-20% PEG 3350, 50-100 mM MgCl2, 2 mM DTT, pH 7.9, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 1.90 Å R-free 0.215
4ROD Human TFIIB-related factor 2 (Brf2) and TBP bound to TRNAU1 promoter Deposited 2014-10-28	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 2 PDB declaration: tetrameric	Chain B 159–339（181 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.9；293 K；10-20% PEG 3350, 50-100 mM MgCl2, 2 mM DTT, pH 7.9, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 2.70 Å R-free 0.247
4ROE Human TFIIB-related factor 2 (Brf2) and TBP bound to RPPH1 promoter Deposited 2014-10-28	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 2 PDB declaration: tetrameric	Chain B 159–339（181 aa）	Not recorded	MG MAGNESIUM ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.9；293 K；10-20% PEG 3350, 50-100 mM MgCl2, 2 mM DTT, pH 7.9, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 2.20 Å R-free 0.222
5FUR Structure of human TFIID-IIA bound to core promoter DNA Deposited 2016-01-29	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 10 PDB declaration: dodecameric	Chain A 1–339（339 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer 10 MM HEPES, 10 MM MGCL2, 50 MM KCL, 3% TREHALOSE 1 MM DTT, 0.0125% NP-40；pH 7.9；10 MM HEPES, 10 MM MGCL2, 50 MM KCL, 3% TREHALOSE 1 MM DTT, 0.0125% NP-40 cryo-EM vitrification conditions Cryogen ETHANE；LIQUID ETHANE	Resolution 8.50 Å
5IY6 Human holo-PIC in the closed state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 27 PDB declaration: 29-meric	Chain P 1–339（339 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 7.20 Å
5IY7 Human holo-PIC in the open state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 27 PDB declaration: 29-meric	Chain P 1–339（339 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 8.60 Å
5IY8 Human holo-PIC in the initial transcribing state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 27 PDB declaration: 29-meric	Chain P 1–339（339 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 7.90 Å
5IY9 Human holo-PIC in the initial transcribing state (no IIS) Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 26 PDB declaration: 29-meric	Chain P 1–339（339 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 6.30 Å
5IYA Human core-PIC in the closed state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric	Chain P 1–339（339 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 5.40 Å
5IYB Human core-PIC in the open state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric	Chain P 1–339（339 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 3.90 Å
5IYC Human core-PIC in the initial transcribing state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric	Chain P 1–339（339 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 3.90 Å
5IYD Human core-PIC in the initial transcribing state (no IIS) Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain P 1–339（339 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 3.90 Å
5N9G TFIIIB -TBP/Brf2/DNA and SANT domain of Bdp1- Deposited 2017-02-24	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 159–339（181 aa） Fragment：UNP residues 159-339	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；10-16% PEG 8000, 150-200 mM KCl, 100 mM MES pH 6.5, 10-15 mM MgCl2, 1 mM TCEP	Resolution 2.70 Å R-free 0.234
5N9G TFIIIB -TBP/Brf2/DNA and SANT domain of Bdp1- Deposited 2017-02-24	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain G 159–339（181 aa） Fragment：UNP residues 159-339	Not recorded	NA SODIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；10-16% PEG 8000, 150-200 mM KCl, 100 mM MES pH 6.5, 10-15 mM MgCl2, 1 mM TCEP	Resolution 2.70 Å R-free 0.234
6MZD Human TFIID Lobe A canonical Deposited 2018-11-05	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric	Chain T 1–339（339 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；BT 4s; BF 15N	Resolution 9.80 Å
6MZL Human TFIID canonical state Deposited 2018-11-05	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 22 PDB declaration: 22-meric	Chain T 1–339（339 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；BT 4s; BF 15N	Resolution 23.00 Å
6MZM Human TFIID bound to promoter DNA and TFIIA Deposited 2018-11-05	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 15 PDB declaration: heptadecameric	Chain T 1–339（339 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；BT 4s; BF 15N	Resolution 7.50 Å
6O9L Human holo-PIC in the closed state Deposited 2019-03-14	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 31 PDB declaration: 33-meric	Chain P 1–339（339 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
7EDX p53-bound TFIID-based core PIC on HDM2 promoter Deposited 2021-03-17	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain P 1–339（339 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.50 Å
7EG7 TFIID-based core PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain P 1–339（339 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.20 Å
7EG8 TFIID-based core PIC on PUMA promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain P 1–339（339 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.40 Å
7EG9 TFIID-based intermediate PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 39 PDB declaration: 41-meric	Chain P 1–339（339 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.70 Å
7EGA TFIID-based intermediate PIC on PUMA promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 39 PDB declaration: 41-meric	Chain P 1–339（339 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
7EGB TFIID-based holo PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 49 PDB declaration: 51-meric	Chain P 1–339（339 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
7EGC p53-bound TFIID-based holo PIC on HDM2 promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 49 PDB declaration: 51-meric	Chain P 1–339（339 aa）	Not recorded	ZN ZINC ION × 16 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.90 Å
7EGD SCP promoter-bound TFIID-TFIIA in initial TBP-loading state Deposited 2021-03-24	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain P 1–339（339 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.75 Å
7EGE TFIID in canonical conformation Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 20 PDB declaration: eicosameric	Chain P 1–339（339 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 9.00 Å
7EGF TFIID lobe A subcomplex Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 10 PDB declaration: decameric	Chain P 1–339（339 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.16 Å
7EGI TFIID in rearranged conformation Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 22 PDB declaration: 22-meric	Chain P 1–339（339 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 9.82 Å
7EGJ SCP promoter-bound TFIID-TFIIA in post TBP-loading state Deposited 2021-03-24	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain P 1–339（339 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 8.64 Å
7ENA TFIID-based PIC-Mediator holo-complex in pre-assembled state (pre-hPIC-MED) Deposited 2021-04-16	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 74 PDB declaration: 76-meric	Chain DP 1–339（339 aa）	Not recorded	ZN ZINC ION × 16 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.07 Å
7ENC TFIID-based PIC-Mediator holo-complex in fully-assembled state (hPIC-MED) Deposited 2021-04-16	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 74 PDB declaration: 76-meric	Chain DP 1–339（339 aa）	Not recorded	ZN ZINC ION × 16 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.13 Å
7LBM Structure of the human Mediator-bound transcription pre-initiation complex Deposited 2021-01-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 54 PDB declaration: 56-meric	Chain P 1–339（339 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 16 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.80 Å
7NVR Human Mediator with RNA Polymerase II Pre-initiation complex Deposited 2021-03-15	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 56 PDB declaration: 58-meric	Chain O 1–339（339 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 18 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.50 Å
7NVS RNA polymerase II core pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain O 1–339（339 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7NVT RNA polymerase II core pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain O 1–339（339 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7NVU RNA polymerase II core pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain O 1–339（339 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
7NVY RNA polymerase II pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain O 1–339（339 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.30 Å
7NVZ RNA polymerase II pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain O 1–339（339 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
7NW0 RNA polymerase II pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain O 1–339（339 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 15 ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 2 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.60 Å
7ZWC Structure of SNAPc:TBP-TFIIA-TFIIB sub-complex bound to U5 snRNA promoter Deposited 2022-05-19	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric	Chain O 1–339（339 aa）	Not recorded	ZN ZINC ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
7ZWD Structure of SNAPc containing Pol II pre-initiation complex bound to U5 snRNA promoter (CC) Deposited 2022-05-19	Parsed fields agree	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain O 1–339（339 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7ZX7 Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (CC) Deposited 2022-05-20	Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain O 1–339（339 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
7ZXE Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (OC) Deposited 2022-05-20	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric	Chain O 1–339（339 aa）	Not recorded	ZN ZINC ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
8BVW RNA polymerase II pre-initiation complex with the distal +1 nucleosome (PIC-Nuc18W) Deposited 2022-12-20	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 40 PDB declaration: 42-meric	Chain O 1–339（339 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.00 Å
8BYQ RNA polymerase II pre-initiation complex with the proximal +1 nucleosome (PIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 38 PDB declaration: 40-meric	Chain O 1–339（339 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 16 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
8BZ1 RNA polymerase II core pre-initiation complex with the proximal +1 nucleosome (cPIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 26 PDB declaration: 28-meric	Chain O 1–339（339 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8GXQ PIC-Mediator in complex with +1 nucleosome (T40N) in MH-binding state Deposited 2022-09-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 83 PDB declaration: 87-meric	Chain DP 1–339（339 aa）	Not recorded	ZN ZINC ION × 19 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.04 Å
8GXS PIC-Mediator in complex with +1 nucleosome (T40N) in H-binding state Deposited 2022-09-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 83 PDB declaration: 87-meric	Chain DP 1–339（339 aa）	Not recorded	ZN ZINC ION × 19 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.16 Å
8ITY human RNA polymerase III pre-initiation complex closed DNA 1 Deposited 2023-03-23	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain U 1–339（339 aa）	Not recorded	ZN ZINC ION × 7 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 3.90 Å
8IUE RNA polymerase III pre-initiation complex melting complex 1 Deposited 2023-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain U 1–339（339 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 4.10 Å
8IUH RNA polymerase III pre-initiation complex open complex 1 Deposited 2023-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain U 1–339（339 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 3.40 Å
8S51 RNA polymerase II core initially transcribing complex with an ordered RNA of 8 nt Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain O 1–339（339 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8S52 RNA polymerase II core initially transcribing complex with an ordered RNA of 10 nt Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain O 1–339（339 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
8S5N RNA polymerase II core initially transcribing complex with an ordered RNA of 12 nt Deposited 2024-02-24	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain O 1–339（339 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8WAK Structure of transcribing complex 2 (TC2), the initially transcribing complex with Pol II positioned 2nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain P 1–339（339 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.47 Å
8WAL Structure of transcribing complex 3 (TC3), the initially transcribing complex with Pol II positioned 3nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain P 1–339（339 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 8.52 Å
8WAN Structure of transcribing complex 4 (TC4), the initially transcribing complex with Pol II positioned 4nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain P 1–339（339 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.07 Å
8WAO Structure of transcribing complex 5 (TC5), the initially transcribing complex with Pol II positioned 5nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain P 1–339（339 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.40 Å
8WAP Structure of transcribing complex 6 (TC6), the initially transcribing complex with Pol II positioned 6nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain P 1–339（339 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.85 Å
8WAQ Structure of transcribing complex 7 (TC7), the initially transcribing complex with Pol II positioned 7nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain P 1–339（339 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.29 Å
8WAR Structure of transcribing complex 8 (TC8), the initially transcribing complex with Pol II positioned 8nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain P 1–339（339 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
8WAS Structure of transcribing complex 9 (TC9), the initially transcribing complex with Pol II positioned 9nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain P 1–339（339 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.13 Å
9FSO Human RNA Polymerase III Class III Open Pre-initiation Complex 1 (OC1) Deposited 2024-06-21	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain R 159–339（181 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.28 Å
9FSP RNA Polymerase III Class III Open Pre-initation Complex 2 (OC2) Deposited 2024-06-21	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain R 159–339（181 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.39 Å
9FSQ RNA Polymerase III Class III Melting Pre-Initiation Complex (MC) Deposited 2024-06-21	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain R 159–339（181 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.51 Å
9FSR RNA Polymerase III Class III Open Mini Pre-initiation Complex 1 (OC1-mini) Deposited 2024-06-21	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain R 159–339（181 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.76 Å
9FSS RNA Polymerase III Class III Open Mini Pre-Initiation complex 2 (OC2-mini) Deposited 2024-06-21	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain R 159–339（181 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.14 Å
9K3B Human RNA Polymerase III de novo transcribing complex 10 overall (TC10-overall) Deposited 2024-10-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 23 PDB declaration: 26-meric	Chain U 1–339（339 aa）	Not recorded	ZN ZINC ION × 6 MG MAGNESIUM ION × 1 3AT 3'-DEOXYADENOSINE-5'-TRIPHOSPHATE × 1 SF4 IRON/SULFUR CLUSTER × 1 GTP GUANOSINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 4.80 Å
9K3U Human RNA Polymerase III de novo transcribing complex 5 (TC5) Deposited 2024-10-20	Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Other combination Heteromer；Protein × 23 PDB declaration: 26-meric	Chain U 1–339（339 aa）	Not recorded	ZN ZINC ION × 7 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1 GTP GUANOSINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 3.00 Å
9K3V Human RNA Polymerase III de novo transcribing complex 4 (TC4) Deposited 2024-10-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 23 PDB declaration: 26-meric	Chain U 1–339（339 aa）	Not recorded	ZN ZINC ION × 7 3AT 3'-DEOXYADENOSINE-5'-TRIPHOSPHATE × 1 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 GTP GUANOSINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 3.50 Å
9LXN Human RNA Polymerase III de novo transcribing complex 5 (TC5)(without 3'dATP) Deposited 2025-02-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 23 PDB declaration: 26-meric	Chain U 1–339（339 aa）	Not recorded	ZN ZINC ION × 7 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1 GTP GUANOSINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 3.30 Å

76 other PDB entries and 81 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	TBP_HUMAN
Isoform	—
PDB entities	15
Chains and sequence ranges	Author chain O； PDBConstruct 1–339； UniProt 1–339

General transcription factor IIF subunit 1

Homo sapiens

UniProt P35269

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein–DNA Heteromer Protein × 22 DNA 2 PDB declaration: 24-meric（24） Consistent with all polymer counts	Chain Q； UniProt 1–517	Not recorded	DNA-directed RNA polymerase subunit × 1 （A0A8D1DPV6） DNA-directed RNA polymerase subunit beta × 1 （I3LGP4） DNA-directed RNA polymerase II subunit RPB3 × 1 （I3LCH3） RNA polymerase II subunit D × 1 （A0A287ADR4） DNA-directed RNA polymerase II subunit E × 1 （I3LSI7） DNA-directed RNA polymerase II subunit F × 1 （F1SKN8） DNA-directed RNA polymerase II subunit RPB7 × 1 （I3LJZ9） DNA-directed RNA polymerases I, II, and III subunit RPABC3 × 1 （A0A4X1ULF2） DNA-directed RNA polymerase II subunit RPB9 × 1 （P60899） DNA-directed RNA polymerases I, II, and III subunit RPABC5 × 1 （A0A4X1VYD0） RNA polymerase II subunit J × 1 （A0A4X1UK25） RNA polymerase II subunit K × 1 （I3LN51） Transcription initiation factor IIB × 1 （Q00403） Non-template strand × 1 TATA-box-binding protein × 1 （P20226） General transcription factor IIF subunit 2 × 1 （P13984） Template strand × 1 Transcription initiation factor IIA subunit 1 × 1 （P52655） Transcription initiation factor IIA subunit 2 × 1 （P52657） snRNA-activating protein complex subunit 1 × 1 （Q16533） snRNA-activating protein complex subunit 3 × 1 （Q92966） snRNA-activating protein complex subunit 4 × 1 （Q5SXM2） snRNA-activating protein complex subunit 5 × 1 （O75971） ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.00 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7ZX8	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
1F3U CRYSTAL STRUCTURE OF THE RAP30/74 INTERACTION DOMAINS OF HUMAN TFIIF Deposited 2000-06-06	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain B 2–172（171 aa） Fragment：RESIDUES 2-172	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；278 K；PEG 1500, lithium nitrate, bis-Tris, DTT, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 278K	Resolution 1.70 Å R-free 0.260
1F3U CRYSTAL STRUCTURE OF THE RAP30/74 INTERACTION DOMAINS OF HUMAN TFIIF Deposited 2000-06-06	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain D 2–172（171 aa） Fragment：RESIDUES 2-172	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；278 K；PEG 1500, lithium nitrate, bis-Tris, DTT, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 278K	Resolution 1.70 Å R-free 0.260
1F3U CRYSTAL STRUCTURE OF THE RAP30/74 INTERACTION DOMAINS OF HUMAN TFIIF Deposited 2000-06-06	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 3 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain F 2–172（171 aa） Fragment：RESIDUES 2-172	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；278 K；PEG 1500, lithium nitrate, bis-Tris, DTT, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 278K	Resolution 1.70 Å R-free 0.260
1F3U CRYSTAL STRUCTURE OF THE RAP30/74 INTERACTION DOMAINS OF HUMAN TFIIF Deposited 2000-06-06	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 4 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain H 2–172（171 aa） Fragment：RESIDUES 2-172	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；278 K；PEG 1500, lithium nitrate, bis-Tris, DTT, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 278K	Resolution 1.70 Å R-free 0.260
1I27 CRYSTAL STRUCTURE OF THE C-TERMINAL DOMAIN OF THE RAP74 SUBUNIT OF HUMAN TRANSCRIPTION FACTOR IIF (TFIIF) Deposited 2001-02-07	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 449–517（69 aa） Fragment：RAP74 SUBUNIT, C-TERMINAL DOMAIN	Mutation：YES	ZN ZINC ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.4；282 K；Zinc Sulfate, Lithium chloride, PEG 2000 MME, polyvinylpyrrolidone 15K, glucosamine hydrochloride, pH 6.4, VAPOR DIFFUSION, HANGING DROP, temperature 282K	Resolution 1.02 Å R-free 0.146
1J2X Crystal structure of RAP74 C-terminal domain complexed with FCP1 C-terminal peptide Deposited 2003-01-15	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 449–517（69 aa） Fragment：C-terminal domain	Not recorded	SO4 SULFATE ION × 2 ZN ZINC ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；PEGMME 550, zinc sulfate, MES, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277.0K	Resolution 2.00 Å R-free 0.254
1NHA Solution Structure of the Carboxyl-Terminal Domain of RAP74 and NMR Characterization of the FCP-Binding Sites of RAP74 and CTD of RAP74, the subunit of Human TFIIF Deposited 2002-12-19	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 436–517（82 aa） Fragment：C-Terminal Domain	Not recorded	No recorded non-water small molecule	SOLUTION NMR NMR measurement conditions pH 6.5；300 K；Ionic strength (raw mmCIF value) 20mM sodium phosphate buffer；Pressure ambient NMR sample composition 1mM cterRAP74 unlabeled, 20mM sodium phosphate, and 1mM EDTA \| 100% D2O NMR sample composition 1mM cterRAP74 U-15N, 20mM sodium phosphate, and 1mM EDTA \| 90% H2O/10% D2O NMR sample composition 1mM cterRAP74 U-15N and U-13C, 20mM sodium phosphate, and 1mM EDTA \| 90% H2O/10% D2O NMR sample composition 1mM cterRAP74 U-15N and U-13C, 20mM sodium phosphate, and 1mM EDTA \| 100% D2O	Resolution not provided
1ONV NMR Structure of a Complex Containing the TFIIF Subunit RAP74 and the RNAP II CTD Phosphatase FCP1 Deposited 2003-03-02	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 436–517（82 aa） Fragment：C-Terminal Domain of RAP74, sequence database residues 436-517	Not recorded	No recorded non-water small molecule	SOLUTION NMR NMR measurement conditions pH 6.5；300 K；Ionic strength (raw mmCIF value) 20mM sodium phosphate buffer；Pressure ambient NMR sample composition 1mM cterRAP74/cterFCP1, 20mM sodium phosphate, and 1mM EDTA \| 100% D2O NMR sample composition 1mM U-15N cterRAP74/cterFCP1, 20mM sodium phosphate, and 1mM EDTA \| 90% H2O/10% D2O NMR sample composition 1mM U-15N,13C cterRAP74/cterFCP1, 20mM sodium phosphate, and 1mM EDTA \| 90% H2O/10% D2O NMR sample composition 1mM cterRAP74/U-15N cterFCP1, 20mM sodium phosphate, and 1mM EDTA \| 90% H2O/10% D2O NMR sample composition 1mM cterRAP74/U-15N,13C cterFCP1, 20mM sodium phosphate, and 1mM EDTA \| 90% H2O/10% D2O NMR sample composition 1mM U-15N,C13 cterRAP74/cterFCP1, 20mM sodium phosphate, and 1mM EDTA; \| 100% D2O NMR sample composition 1mM cterRAP74/U-15N,13C cterFCP1, 20mM sodium phosphate, and 1mM EDTA \| 100% D2O	Resolution not provided
2K7L NMR structure of a complex formed by the C-terminal domain of human RAP74 and a phosphorylated peptide from the central domain of the FCP1 Deposited 2008-08-13	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 451–517（67 aa）	Not recorded	No recorded non-water small molecule	SOLUTION NMR NMR measurement conditions pH 6.5；300 K；Ionic strength (raw mmCIF value) 10-40；Pressure ambient NMR sample composition 1 mM [U-98% 15N] cterRAP74, 1 mM centFCP1-T584PO4, 90% H2O/10% D2O \| 90% H2O/10% D2O NMR sample composition 1 mM [U-98% 13C; U-98% 15N] cterRAP74, 1 mM centFCP1-T584PO4, 90% H2O/10% D2O \| 90% H2O/10% D2O NMR sample composition 1 mM [U-98% 13C; U-98% 15N] cterRAP74, 1 mM centFCP1-T584PO4, 100% D2O \| 100% D2O	Resolution not provided
5IY6 Human holo-PIC in the closed state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 27 PDB declaration: 29-meric	Chain S 1–517（517 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 7.20 Å
5IY7 Human holo-PIC in the open state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 27 PDB declaration: 29-meric	Chain S 1–517（517 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 8.60 Å
5IY8 Human holo-PIC in the initial transcribing state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 27 PDB declaration: 29-meric	Chain S 1–517（517 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 7.90 Å
5IY9 Human holo-PIC in the initial transcribing state (no IIS) Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 26 PDB declaration: 29-meric	Chain S 1–517（517 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 6.30 Å
5IYA Human core-PIC in the closed state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric	Chain S 1–517（517 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 5.40 Å
5IYB Human core-PIC in the open state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric	Chain S 1–517（517 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 3.90 Å
5IYC Human core-PIC in the initial transcribing state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric	Chain S 1–517（517 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 3.90 Å
5IYD Human core-PIC in the initial transcribing state (no IIS) Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain S 1–517（517 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 3.90 Å
6O9L Human holo-PIC in the closed state Deposited 2019-03-14	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 31 PDB declaration: 33-meric	Chain S 1–517（517 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
7EDX p53-bound TFIID-based core PIC on HDM2 promoter Deposited 2021-03-17	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain S 1–517（517 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.50 Å
7EG7 TFIID-based core PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain S 1–517（517 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.20 Å
7EG8 TFIID-based core PIC on PUMA promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain S 1–517（517 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.40 Å
7EG9 TFIID-based intermediate PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 39 PDB declaration: 41-meric	Chain S 1–517（517 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.70 Å
7EGA TFIID-based intermediate PIC on PUMA promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 39 PDB declaration: 41-meric	Chain S 1–517（517 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
7EGB TFIID-based holo PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 49 PDB declaration: 51-meric	Chain S 1–517（517 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
7EGC p53-bound TFIID-based holo PIC on HDM2 promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 49 PDB declaration: 51-meric	Chain S 1–517（517 aa）	Not recorded	ZN ZINC ION × 16 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.90 Å
7ENA TFIID-based PIC-Mediator holo-complex in pre-assembled state (pre-hPIC-MED) Deposited 2021-04-16	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 74 PDB declaration: 76-meric	Chain FA 1–517（517 aa）	Not recorded	ZN ZINC ION × 16 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.07 Å
7ENC TFIID-based PIC-Mediator holo-complex in fully-assembled state (hPIC-MED) Deposited 2021-04-16	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 74 PDB declaration: 76-meric	Chain FA 1–517（517 aa）	Not recorded	ZN ZINC ION × 16 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.13 Å
7LBM Structure of the human Mediator-bound transcription pre-initiation complex Deposited 2021-01-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 54 PDB declaration: 56-meric	Chain S 1–517（517 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 16 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.80 Å
7NVR Human Mediator with RNA Polymerase II Pre-initiation complex Deposited 2021-03-15	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 56 PDB declaration: 58-meric	Chain Q 1–517（517 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 18 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.50 Å
7NVS RNA polymerase II core pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain Q 1–517（517 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7NVT RNA polymerase II core pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain Q 1–517（517 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7NVU RNA polymerase II core pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain Q 1–517（517 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
7NVY RNA polymerase II pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain Q 1–517（517 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.30 Å
7NVZ RNA polymerase II pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain Q 1–517（517 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
7NW0 RNA polymerase II pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain Q 1–517（517 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 15 ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 2 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.60 Å
7ZWD Structure of SNAPc containing Pol II pre-initiation complex bound to U5 snRNA promoter (CC) Deposited 2022-05-19	Parsed fields agree	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain Q 1–517（517 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7ZX7 Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (CC) Deposited 2022-05-20	Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain Q 1–517（517 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8BVW RNA polymerase II pre-initiation complex with the distal +1 nucleosome (PIC-Nuc18W) Deposited 2022-12-20	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 40 PDB declaration: 42-meric	Chain Q 1–517（517 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.00 Å
8BYQ RNA polymerase II pre-initiation complex with the proximal +1 nucleosome (PIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 38 PDB declaration: 40-meric	Chain Q 1–517（517 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 16 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
8BZ1 RNA polymerase II core pre-initiation complex with the proximal +1 nucleosome (cPIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 26 PDB declaration: 28-meric	Chain Q 1–517（517 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8GXQ PIC-Mediator in complex with +1 nucleosome (T40N) in MH-binding state Deposited 2022-09-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 83 PDB declaration: 87-meric	Chain FA 1–517（517 aa）	Not recorded	ZN ZINC ION × 19 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.04 Å
8GXS PIC-Mediator in complex with +1 nucleosome (T40N) in H-binding state Deposited 2022-09-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 83 PDB declaration: 87-meric	Chain FA 1–517（517 aa）	Not recorded	ZN ZINC ION × 19 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.16 Å
8S51 RNA polymerase II core initially transcribing complex with an ordered RNA of 8 nt Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain Q 1–517（517 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8S52 RNA polymerase II core initially transcribing complex with an ordered RNA of 10 nt Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain Q 1–517（517 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
8S54 RNA polymerase II early elongation complex bound to TFIIE and TFIIF - state b (composite structure) Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: 18-meric	Chain Q 1–517（517 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8S55 RNA polymerase II early elongation complex bound to TFIIE and TFIIF - state a (composite structure) Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: 19-meric	Chain Q 1–517（517 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8S5N RNA polymerase II core initially transcribing complex with an ordered RNA of 12 nt Deposited 2024-02-24	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain Q 1–517（517 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8WAK Structure of transcribing complex 2 (TC2), the initially transcribing complex with Pol II positioned 2nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain S 1–517（517 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.47 Å
8WAL Structure of transcribing complex 3 (TC3), the initially transcribing complex with Pol II positioned 3nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain S 1–517（517 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 8.52 Å
8WAN Structure of transcribing complex 4 (TC4), the initially transcribing complex with Pol II positioned 4nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain S 1–517（517 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.07 Å
8WAO Structure of transcribing complex 5 (TC5), the initially transcribing complex with Pol II positioned 5nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain S 1–517（517 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.40 Å
8WAP Structure of transcribing complex 6 (TC6), the initially transcribing complex with Pol II positioned 6nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain S 1–517（517 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.85 Å
8WAQ Structure of transcribing complex 7 (TC7), the initially transcribing complex with Pol II positioned 7nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain S 1–517（517 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.29 Å
8WAR Structure of transcribing complex 8 (TC8), the initially transcribing complex with Pol II positioned 8nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain S 1–517（517 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
8WAS Structure of transcribing complex 9 (TC9), the initially transcribing complex with Pol II positioned 9nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain S 1–517（517 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.13 Å
8WAT De novo transcribing complex 10 (TC10), the early elongation complex with Pol II positioned 10nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain S 1–517（517 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.82 Å
8WAU De novo transcribing complex 11 (TC11), the early elongation complex with Pol II positioned 11nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain S 1–517（517 aa）	Not recorded	W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1 ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.78 Å
8WAV De novo transcribing complex 12 (TC12), the early elongation complex with Pol II positioned 12nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain S 1–517（517 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.72 Å
8WAW De novo transcribing complex 13 (TC13), the early elongation complex with Pol II positioned 13nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain S 1–517（517 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.02 Å
8WAX De novo transcribing complex 14 (TC14), the early elongation complex with Pol II positioned 14nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain S 1–517（517 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.75 Å
8WAY De novo transcribing complex 15 (TC15), the early elongation complex with Pol II positioned 15nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain S 1–517（517 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.85 Å
8WAZ De novo transcribing complex 16 (TC16), the early elongation complex with Pol II positioned 16nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain S 1–517（517 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.76 Å
8WB0 De novo transcribing complex 17 (TC17), the early elongation complex with Pol II positioned 17nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain S 1–517（517 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.94 Å

60 other PDB entries and 63 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	T2FA_HUMAN
Isoform	—
PDB entities	16
Chains and sequence ranges	Author chain Q； PDBConstruct 1–517； UniProt 1–517

General transcription factor IIF subunit 2

Homo sapiens

UniProt P13984

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein–DNA Heteromer Protein × 22 DNA 2 PDB declaration: 24-meric（24） Consistent with all polymer counts	Chain R； UniProt 1–249	Not recorded	DNA-directed RNA polymerase subunit × 1 （A0A8D1DPV6） DNA-directed RNA polymerase subunit beta × 1 （I3LGP4） DNA-directed RNA polymerase II subunit RPB3 × 1 （I3LCH3） RNA polymerase II subunit D × 1 （A0A287ADR4） DNA-directed RNA polymerase II subunit E × 1 （I3LSI7） DNA-directed RNA polymerase II subunit F × 1 （F1SKN8） DNA-directed RNA polymerase II subunit RPB7 × 1 （I3LJZ9） DNA-directed RNA polymerases I, II, and III subunit RPABC3 × 1 （A0A4X1ULF2） DNA-directed RNA polymerase II subunit RPB9 × 1 （P60899） DNA-directed RNA polymerases I, II, and III subunit RPABC5 × 1 （A0A4X1VYD0） RNA polymerase II subunit J × 1 （A0A4X1UK25） RNA polymerase II subunit K × 1 （I3LN51） Transcription initiation factor IIB × 1 （Q00403） Non-template strand × 1 TATA-box-binding protein × 1 （P20226） General transcription factor IIF subunit 1 × 1 （P35269） Template strand × 1 Transcription initiation factor IIA subunit 1 × 1 （P52655） Transcription initiation factor IIA subunit 2 × 1 （P52657） snRNA-activating protein complex subunit 1 × 1 （Q16533） snRNA-activating protein complex subunit 3 × 1 （Q92966） snRNA-activating protein complex subunit 4 × 1 （Q5SXM2） snRNA-activating protein complex subunit 5 × 1 （O75971） ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.00 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7ZX8	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
1BBY DNA-BINDING DOMAIN FROM HUMAN RAP30, NMR, MINIMIZED AVERAGE Deposited 1998-04-26	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 175–243（69 aa） Fragment：DNA-BINDING DOMAIN	Not recorded	No recorded non-water small molecule	SOLUTION NMR NMR measurement conditions pH 7.2；297 K；Ionic strength (raw mmCIF value) 10mM PHOSPHATE, 50mM NACL；Pressure 1 NMR sample composition AQUEOUS	Resolution not provided
1F3U CRYSTAL STRUCTURE OF THE RAP30/74 INTERACTION DOMAINS OF HUMAN TFIIF Deposited 2000-06-06	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 2–119（118 aa） Fragment：RESIDUES 2-119	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；278 K；PEG 1500, lithium nitrate, bis-Tris, DTT, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 278K	Resolution 1.70 Å R-free 0.260
1F3U CRYSTAL STRUCTURE OF THE RAP30/74 INTERACTION DOMAINS OF HUMAN TFIIF Deposited 2000-06-06	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain C 2–119（118 aa） Fragment：RESIDUES 2-119	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；278 K；PEG 1500, lithium nitrate, bis-Tris, DTT, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 278K	Resolution 1.70 Å R-free 0.260
1F3U CRYSTAL STRUCTURE OF THE RAP30/74 INTERACTION DOMAINS OF HUMAN TFIIF Deposited 2000-06-06	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 3 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain E 2–119（118 aa） Fragment：RESIDUES 2-119	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；278 K；PEG 1500, lithium nitrate, bis-Tris, DTT, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 278K	Resolution 1.70 Å R-free 0.260
1F3U CRYSTAL STRUCTURE OF THE RAP30/74 INTERACTION DOMAINS OF HUMAN TFIIF Deposited 2000-06-06	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 4 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain G 2–119（118 aa） Fragment：RESIDUES 2-119	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；278 K；PEG 1500, lithium nitrate, bis-Tris, DTT, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 278K	Resolution 1.70 Å R-free 0.260
2BBY DNA-BINDING DOMAIN FROM HUMAN RAP30, NMR, 30 STRUCTURES Deposited 1998-04-27	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 175–243（69 aa） Fragment：DNA-BINDING DOMAIN	Not recorded	No recorded non-water small molecule	SOLUTION NMR NMR measurement conditions pH 7.2；297 K；Ionic strength (raw mmCIF value) 10mM PHOSPHATE, 50mM NACL；Pressure 1 NMR sample composition AQUEOUS	Resolution not provided
5IY6 Human holo-PIC in the closed state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 27 PDB declaration: 29-meric	Chain T 1–249（249 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 7.20 Å
5IY7 Human holo-PIC in the open state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 27 PDB declaration: 29-meric	Chain T 1–249（249 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 8.60 Å
5IY8 Human holo-PIC in the initial transcribing state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 27 PDB declaration: 29-meric	Chain T 1–249（249 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 7.90 Å
5IY9 Human holo-PIC in the initial transcribing state (no IIS) Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 26 PDB declaration: 29-meric	Chain T 1–249（249 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 6.30 Å
5IYA Human core-PIC in the closed state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric	Chain T 1–249（249 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 5.40 Å
5IYB Human core-PIC in the open state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric	Chain T 1–249（249 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 3.90 Å
5IYC Human core-PIC in the initial transcribing state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric	Chain T 1–249（249 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 3.90 Å
5IYD Human core-PIC in the initial transcribing state (no IIS) Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain T 1–249（249 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 3.90 Å
6O9L Human holo-PIC in the closed state Deposited 2019-03-14	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 31 PDB declaration: 33-meric	Chain T 1–249（249 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
7EDX p53-bound TFIID-based core PIC on HDM2 promoter Deposited 2021-03-17	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain T 1–249（249 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.50 Å
7EG7 TFIID-based core PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain T 1–249（249 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.20 Å
7EG8 TFIID-based core PIC on PUMA promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain T 1–249（249 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.40 Å
7EG9 TFIID-based intermediate PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 39 PDB declaration: 41-meric	Chain T 1–249（249 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.70 Å
7EGA TFIID-based intermediate PIC on PUMA promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 39 PDB declaration: 41-meric	Chain T 1–249（249 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
7EGB TFIID-based holo PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 49 PDB declaration: 51-meric	Chain T 1–249（249 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
7EGC p53-bound TFIID-based holo PIC on HDM2 promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 49 PDB declaration: 51-meric	Chain T 1–249（249 aa）	Not recorded	ZN ZINC ION × 16 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.90 Å
7ENA TFIID-based PIC-Mediator holo-complex in pre-assembled state (pre-hPIC-MED) Deposited 2021-04-16	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 74 PDB declaration: 76-meric	Chain FB 1–249（249 aa）	Not recorded	ZN ZINC ION × 16 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.07 Å
7ENC TFIID-based PIC-Mediator holo-complex in fully-assembled state (hPIC-MED) Deposited 2021-04-16	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 74 PDB declaration: 76-meric	Chain FB 1–249（249 aa）	Not recorded	ZN ZINC ION × 16 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.13 Å
7LBM Structure of the human Mediator-bound transcription pre-initiation complex Deposited 2021-01-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 54 PDB declaration: 56-meric	Chain T 1–249（249 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 16 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.80 Å
7NVR Human Mediator with RNA Polymerase II Pre-initiation complex Deposited 2021-03-15	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 56 PDB declaration: 58-meric	Chain R 1–249（249 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 18 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.50 Å
7NVS RNA polymerase II core pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain R 1–249（249 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7NVT RNA polymerase II core pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain R 1–249（249 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7NVU RNA polymerase II core pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain R 1–249（249 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
7NVY RNA polymerase II pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain R 1–249（249 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.30 Å
7NVZ RNA polymerase II pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain R 1–249（249 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
7NW0 RNA polymerase II pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain R 1–249（249 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 15 ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 2 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.60 Å
7ZWD Structure of SNAPc containing Pol II pre-initiation complex bound to U5 snRNA promoter (CC) Deposited 2022-05-19	Parsed fields agree	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain R 1–249（249 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7ZX7 Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (CC) Deposited 2022-05-20	Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain R 1–249（249 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8BVW RNA polymerase II pre-initiation complex with the distal +1 nucleosome (PIC-Nuc18W) Deposited 2022-12-20	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 40 PDB declaration: 42-meric	Chain R 1–249（249 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.00 Å
8BYQ RNA polymerase II pre-initiation complex with the proximal +1 nucleosome (PIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 38 PDB declaration: 40-meric	Chain R 1–249（249 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 16 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
8BZ1 RNA polymerase II core pre-initiation complex with the proximal +1 nucleosome (cPIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 26 PDB declaration: 28-meric	Chain R 1–249（249 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8GXQ PIC-Mediator in complex with +1 nucleosome (T40N) in MH-binding state Deposited 2022-09-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 83 PDB declaration: 87-meric	Chain FB 1–249（249 aa）	Not recorded	ZN ZINC ION × 19 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.04 Å
8GXS PIC-Mediator in complex with +1 nucleosome (T40N) in H-binding state Deposited 2022-09-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 83 PDB declaration: 87-meric	Chain FB 1–249（249 aa）	Not recorded	ZN ZINC ION × 19 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.16 Å
8S51 RNA polymerase II core initially transcribing complex with an ordered RNA of 8 nt Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain R 1–249（249 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8S52 RNA polymerase II core initially transcribing complex with an ordered RNA of 10 nt Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain R 1–249（249 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
8S54 RNA polymerase II early elongation complex bound to TFIIE and TFIIF - state b (composite structure) Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: 18-meric	Chain R 1–249（249 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8S55 RNA polymerase II early elongation complex bound to TFIIE and TFIIF - state a (composite structure) Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: 19-meric	Chain R 1–249（249 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8S5N RNA polymerase II core initially transcribing complex with an ordered RNA of 12 nt Deposited 2024-02-24	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain R 1–249（249 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8WAK Structure of transcribing complex 2 (TC2), the initially transcribing complex with Pol II positioned 2nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain T 1–249（249 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.47 Å
8WAL Structure of transcribing complex 3 (TC3), the initially transcribing complex with Pol II positioned 3nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain T 1–249（249 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 8.52 Å
8WAN Structure of transcribing complex 4 (TC4), the initially transcribing complex with Pol II positioned 4nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain T 1–249（249 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.07 Å
8WAO Structure of transcribing complex 5 (TC5), the initially transcribing complex with Pol II positioned 5nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain T 1–249（249 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.40 Å
8WAP Structure of transcribing complex 6 (TC6), the initially transcribing complex with Pol II positioned 6nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain T 1–249（249 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.85 Å
8WAQ Structure of transcribing complex 7 (TC7), the initially transcribing complex with Pol II positioned 7nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain T 1–249（249 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.29 Å
8WAR Structure of transcribing complex 8 (TC8), the initially transcribing complex with Pol II positioned 8nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain T 1–249（249 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
8WAS Structure of transcribing complex 9 (TC9), the initially transcribing complex with Pol II positioned 9nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain T 1–249（249 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.13 Å
8WAT De novo transcribing complex 10 (TC10), the early elongation complex with Pol II positioned 10nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain T 1–249（249 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.82 Å
8WAU De novo transcribing complex 11 (TC11), the early elongation complex with Pol II positioned 11nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain T 1–249（249 aa）	Not recorded	W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1 ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.78 Å
8WAV De novo transcribing complex 12 (TC12), the early elongation complex with Pol II positioned 12nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain T 1–249（249 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.72 Å
8WAW De novo transcribing complex 13 (TC13), the early elongation complex with Pol II positioned 13nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain T 1–249（249 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.02 Å
8WAX De novo transcribing complex 14 (TC14), the early elongation complex with Pol II positioned 14nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain T 1–249（249 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.75 Å
8WAY De novo transcribing complex 15 (TC15), the early elongation complex with Pol II positioned 15nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain T 1–249（249 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.85 Å
8WAZ De novo transcribing complex 16 (TC16), the early elongation complex with Pol II positioned 16nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain T 1–249（249 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.76 Å
8WB0 De novo transcribing complex 17 (TC17), the early elongation complex with Pol II positioned 17nt downstream of TSS Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 15 PDB declaration: octadecameric	Chain T 1–249（249 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.94 Å

57 other PDB entries and 60 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	T2FB_HUMAN
Isoform	—
PDB entities	17
Chains and sequence ranges	Author chain R； PDBConstruct 1–249； UniProt 1–249

Transcription initiation factor IIA subunit 1

Homo sapiens

UniProt P52655

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein–DNA Heteromer Protein × 22 DNA 2 PDB declaration: 24-meric（24） Consistent with all polymer counts	Chain U； UniProt 1–376	Not recorded	DNA-directed RNA polymerase subunit × 1 （A0A8D1DPV6） DNA-directed RNA polymerase subunit beta × 1 （I3LGP4） DNA-directed RNA polymerase II subunit RPB3 × 1 （I3LCH3） RNA polymerase II subunit D × 1 （A0A287ADR4） DNA-directed RNA polymerase II subunit E × 1 （I3LSI7） DNA-directed RNA polymerase II subunit F × 1 （F1SKN8） DNA-directed RNA polymerase II subunit RPB7 × 1 （I3LJZ9） DNA-directed RNA polymerases I, II, and III subunit RPABC3 × 1 （A0A4X1ULF2） DNA-directed RNA polymerase II subunit RPB9 × 1 （P60899） DNA-directed RNA polymerases I, II, and III subunit RPABC5 × 1 （A0A4X1VYD0） RNA polymerase II subunit J × 1 （A0A4X1UK25） RNA polymerase II subunit K × 1 （I3LN51） Transcription initiation factor IIB × 1 （Q00403） Non-template strand × 1 TATA-box-binding protein × 1 （P20226） General transcription factor IIF subunit 1 × 1 （P35269） General transcription factor IIF subunit 2 × 1 （P13984） Template strand × 1 Transcription initiation factor IIA subunit 2 × 1 （P52657） snRNA-activating protein complex subunit 1 × 1 （Q16533） snRNA-activating protein complex subunit 3 × 1 （Q92966） snRNA-activating protein complex subunit 4 × 1 （Q5SXM2） snRNA-activating protein complex subunit 5 × 1 （O75971） ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.00 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7ZX8	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
1NVP HUMAN TFIIA/TBP/DNA COMPLEX Deposited 2003-02-04	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 4 PDB declaration: hexameric	Chain B 2–58（57 aa） Fragment：N-terminal 58 amino acids Chain C 303–376（74 aa） Fragment：c-terminal 76 amino acids	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；295 K；PEG6000, lithium nitrate, calcium chloride, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K	Resolution 2.10 Å R-free 0.247
5FUR Structure of human TFIID-IIA bound to core promoter DNA Deposited 2016-01-29	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 10 PDB declaration: dodecameric	Chain B 9–51（43 aa） Chain C 330–376（47 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer 10 MM HEPES, 10 MM MGCL2, 50 MM KCL, 3% TREHALOSE 1 MM DTT, 0.0125% NP-40；pH 7.9；10 MM HEPES, 10 MM MGCL2, 50 MM KCL, 3% TREHALOSE 1 MM DTT, 0.0125% NP-40 cryo-EM vitrification conditions Cryogen ETHANE；LIQUID ETHANE	Resolution 8.50 Å
5IY6 Human holo-PIC in the closed state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 27 PDB declaration: 29-meric	Chain N 1–376（376 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 7.20 Å
5IY7 Human holo-PIC in the open state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 27 PDB declaration: 29-meric	Chain N 1–376（376 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 8.60 Å
5IY8 Human holo-PIC in the initial transcribing state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 27 PDB declaration: 29-meric	Chain N 1–376（376 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 7.90 Å
5IY9 Human holo-PIC in the initial transcribing state (no IIS) Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 26 PDB declaration: 29-meric	Chain N 1–376（376 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 6.30 Å
5IYA Human core-PIC in the closed state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric	Chain N 1–376（376 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 5.40 Å
5IYB Human core-PIC in the open state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric	Chain N 1–376（376 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 3.90 Å
5IYC Human core-PIC in the initial transcribing state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric	Chain N 1–376（376 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 3.90 Å
5IYD Human core-PIC in the initial transcribing state (no IIS) Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain N 1–376（376 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 3.90 Å
5M4S Transcription factor TFIIA as a single chain protein Deposited 2016-10-19	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Insufficient information Monomer；Protein × 1 PDB declaration: monomeric	Chain A 2–58（57 aa） Chain A 328–376（49 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；20mM Tris (8.0), 1mM DTT, 0.5mM EDTA and 25mM NaCl	Resolution 2.38 Å R-free 0.242
6O9L Human holo-PIC in the closed state Deposited 2019-03-14	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 31 PDB declaration: 33-meric	Chain N 1–376（376 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
7EDX p53-bound TFIID-based core PIC on HDM2 promoter Deposited 2021-03-17	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain Q 1–376（376 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.50 Å
7EG7 TFIID-based core PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain Q 1–376（376 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.20 Å
7EG8 TFIID-based core PIC on PUMA promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain Q 1–376（376 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.40 Å
7EG9 TFIID-based intermediate PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 39 PDB declaration: 41-meric	Chain Q 1–376（376 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.70 Å
7EGA TFIID-based intermediate PIC on PUMA promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 39 PDB declaration: 41-meric	Chain Q 1–376（376 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
7EGB TFIID-based holo PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 49 PDB declaration: 51-meric	Chain Q 1–376（376 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
7EGC p53-bound TFIID-based holo PIC on HDM2 promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 49 PDB declaration: 51-meric	Chain Q 1–376（376 aa）	Not recorded	ZN ZINC ION × 16 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.90 Å
7EGD SCP promoter-bound TFIID-TFIIA in initial TBP-loading state Deposited 2021-03-24	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain Q 1–376（376 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.75 Å
7EGI TFIID in rearranged conformation Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 22 PDB declaration: 22-meric	Chain Q 1–376（376 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 9.82 Å
7EGJ SCP promoter-bound TFIID-TFIIA in post TBP-loading state Deposited 2021-03-24	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain Q 1–376（376 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 8.64 Å
7LBM Structure of the human Mediator-bound transcription pre-initiation complex Deposited 2021-01-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 54 PDB declaration: 56-meric	Chain M 1–376（376 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 16 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.80 Å
7NVR Human Mediator with RNA Polymerase II Pre-initiation complex Deposited 2021-03-15	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 56 PDB declaration: 58-meric	Chain U 1–376（376 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 18 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.50 Å
7NVS RNA polymerase II core pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain U 1–376（376 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7NVT RNA polymerase II core pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain U 1–376（376 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7NVU RNA polymerase II core pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain U 1–376（376 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
7NVY RNA polymerase II pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain U 1–376（376 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.30 Å
7NVZ RNA polymerase II pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain U 1–376（376 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
7NW0 RNA polymerase II pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain U 1–376（376 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 15 ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 2 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.60 Å
7ZWC Structure of SNAPc:TBP-TFIIA-TFIIB sub-complex bound to U5 snRNA promoter Deposited 2022-05-19	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric	Chain U 1–376（376 aa）	Not recorded	ZN ZINC ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
7ZWD Structure of SNAPc containing Pol II pre-initiation complex bound to U5 snRNA promoter (CC) Deposited 2022-05-19	Parsed fields agree	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain U 1–376（376 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7ZX7 Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (CC) Deposited 2022-05-20	Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain U 1–376（376 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
7ZXE Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (OC) Deposited 2022-05-20	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric	Chain U 1–376（376 aa）	Not recorded	ZN ZINC ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
8BVW RNA polymerase II pre-initiation complex with the distal +1 nucleosome (PIC-Nuc18W) Deposited 2022-12-20	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 40 PDB declaration: 42-meric	Chain U 1–376（376 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.00 Å
8BYQ RNA polymerase II pre-initiation complex with the proximal +1 nucleosome (PIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 38 PDB declaration: 40-meric	Chain U 1–376（376 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 16 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
8BZ1 RNA polymerase II core pre-initiation complex with the proximal +1 nucleosome (cPIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 26 PDB declaration: 28-meric	Chain U 1–376（376 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8GXQ PIC-Mediator in complex with +1 nucleosome (T40N) in MH-binding state Deposited 2022-09-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 83 PDB declaration: 87-meric	Chain DQ 1–376（376 aa）	Not recorded	ZN ZINC ION × 19 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.04 Å
8GXS PIC-Mediator in complex with +1 nucleosome (T40N) in H-binding state Deposited 2022-09-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 83 PDB declaration: 87-meric	Chain DQ 1–376（376 aa）	Not recorded	ZN ZINC ION × 19 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.16 Å
8S51 RNA polymerase II core initially transcribing complex with an ordered RNA of 8 nt Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain U 1–376（376 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8S52 RNA polymerase II core initially transcribing complex with an ordered RNA of 10 nt Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain U 1–376（376 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
8S5N RNA polymerase II core initially transcribing complex with an ordered RNA of 12 nt Deposited 2024-02-24	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain U 1–376（376 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8WAK Structure of transcribing complex 2 (TC2), the initially transcribing complex with Pol II positioned 2nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain Q 1–376（376 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.47 Å
8WAL Structure of transcribing complex 3 (TC3), the initially transcribing complex with Pol II positioned 3nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain Q 1–376（376 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 8.52 Å
8WAN Structure of transcribing complex 4 (TC4), the initially transcribing complex with Pol II positioned 4nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain Q 1–376（376 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.07 Å
8WAO Structure of transcribing complex 5 (TC5), the initially transcribing complex with Pol II positioned 5nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain Q 1–376（376 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.40 Å
8WAP Structure of transcribing complex 6 (TC6), the initially transcribing complex with Pol II positioned 6nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain Q 1–376（376 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.85 Å
8WAQ Structure of transcribing complex 7 (TC7), the initially transcribing complex with Pol II positioned 7nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain Q 1–376（376 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.29 Å
8WAR Structure of transcribing complex 8 (TC8), the initially transcribing complex with Pol II positioned 8nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain Q 1–376（376 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
8WAS Structure of transcribing complex 9 (TC9), the initially transcribing complex with Pol II positioned 9nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain Q 1–376（376 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.13 Å

50 other PDB entries and 50 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	TF2AA_HUMAN
Isoform	—
PDB entities	19
Chains and sequence ranges	Author chain U； PDBConstruct 1–376； UniProt 1–376

Transcription initiation factor IIA subunit 2

Homo sapiens

UniProt P52657

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein–DNA Heteromer Protein × 22 DNA 2 PDB declaration: 24-meric（24） Consistent with all polymer counts	Chain V； UniProt 1–109	Not recorded	DNA-directed RNA polymerase subunit × 1 （A0A8D1DPV6） DNA-directed RNA polymerase subunit beta × 1 （I3LGP4） DNA-directed RNA polymerase II subunit RPB3 × 1 （I3LCH3） RNA polymerase II subunit D × 1 （A0A287ADR4） DNA-directed RNA polymerase II subunit E × 1 （I3LSI7） DNA-directed RNA polymerase II subunit F × 1 （F1SKN8） DNA-directed RNA polymerase II subunit RPB7 × 1 （I3LJZ9） DNA-directed RNA polymerases I, II, and III subunit RPABC3 × 1 （A0A4X1ULF2） DNA-directed RNA polymerase II subunit RPB9 × 1 （P60899） DNA-directed RNA polymerases I, II, and III subunit RPABC5 × 1 （A0A4X1VYD0） RNA polymerase II subunit J × 1 （A0A4X1UK25） RNA polymerase II subunit K × 1 （I3LN51） Transcription initiation factor IIB × 1 （Q00403） Non-template strand × 1 TATA-box-binding protein × 1 （P20226） General transcription factor IIF subunit 1 × 1 （P35269） General transcription factor IIF subunit 2 × 1 （P13984） Template strand × 1 Transcription initiation factor IIA subunit 1 × 1 （P52655） snRNA-activating protein complex subunit 1 × 1 （Q16533） snRNA-activating protein complex subunit 3 × 1 （Q92966） snRNA-activating protein complex subunit 4 × 1 （Q5SXM2） snRNA-activating protein complex subunit 5 × 1 （O75971） ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.00 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7ZX8	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
1NVP HUMAN TFIIA/TBP/DNA COMPLEX Deposited 2003-02-04	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 4 PDB declaration: hexameric	Chain D 2–109（108 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；295 K；PEG6000, lithium nitrate, calcium chloride, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K	Resolution 2.10 Å R-free 0.247
5FUR Structure of human TFIID-IIA bound to core promoter DNA Deposited 2016-01-29	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 10 PDB declaration: dodecameric	Chain D 3–99（97 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer 10 MM HEPES, 10 MM MGCL2, 50 MM KCL, 3% TREHALOSE 1 MM DTT, 0.0125% NP-40；pH 7.9；10 MM HEPES, 10 MM MGCL2, 50 MM KCL, 3% TREHALOSE 1 MM DTT, 0.0125% NP-40 cryo-EM vitrification conditions Cryogen ETHANE；LIQUID ETHANE	Resolution 8.50 Å
5IY6 Human holo-PIC in the closed state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 27 PDB declaration: 29-meric	Chain O 1–109（109 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 7.20 Å
5IY7 Human holo-PIC in the open state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 27 PDB declaration: 29-meric	Chain O 1–109（109 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 8.60 Å
5IY8 Human holo-PIC in the initial transcribing state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 27 PDB declaration: 29-meric	Chain O 1–109（109 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 7.90 Å
5IY9 Human holo-PIC in the initial transcribing state (no IIS) Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 26 PDB declaration: 29-meric	Chain O 1–109（109 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 6.30 Å
5IYA Human core-PIC in the closed state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric	Chain O 1–109（109 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 5.40 Å
5IYB Human core-PIC in the open state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric	Chain O 1–109（109 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 3.90 Å
5IYC Human core-PIC in the initial transcribing state Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric	Chain O 1–109（109 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 3.90 Å
5IYD Human core-PIC in the initial transcribing state (no IIS) Deposited 2016-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain O 1–109（109 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).	Resolution 3.90 Å
5M4S Transcription factor TFIIA as a single chain protein Deposited 2016-10-19	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Insufficient information Monomer；Protein × 1 PDB declaration: monomeric	Chain A 2–103（102 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；20mM Tris (8.0), 1mM DTT, 0.5mM EDTA and 25mM NaCl	Resolution 2.38 Å R-free 0.242
6MZM Human TFIID bound to promoter DNA and TFIIA Deposited 2018-11-05	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 15 PDB declaration: heptadecameric	Chain X 3–99（97 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE；BT 4s; BF 15N	Resolution 7.50 Å
6O9L Human holo-PIC in the closed state Deposited 2019-03-14	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 31 PDB declaration: 33-meric	Chain O 1–109（109 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
7EDX p53-bound TFIID-based core PIC on HDM2 promoter Deposited 2021-03-17	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain O 1–109（109 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.50 Å
7EG7 TFIID-based core PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain O 1–109（109 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.20 Å
7EG8 TFIID-based core PIC on PUMA promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 37 PDB declaration: 39-meric	Chain O 1–109（109 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.40 Å
7EG9 TFIID-based intermediate PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 39 PDB declaration: 41-meric	Chain O 1–109（109 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.70 Å
7EGA TFIID-based intermediate PIC on PUMA promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 39 PDB declaration: 41-meric	Chain O 1–109（109 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
7EGB TFIID-based holo PIC on SCP promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 49 PDB declaration: 51-meric	Chain O 1–109（109 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
7EGC p53-bound TFIID-based holo PIC on HDM2 promoter Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 49 PDB declaration: 51-meric	Chain O 1–109（109 aa）	Not recorded	ZN ZINC ION × 16 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.90 Å
7EGD SCP promoter-bound TFIID-TFIIA in initial TBP-loading state Deposited 2021-03-24	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain O 1–109（109 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.75 Å
7EGI TFIID in rearranged conformation Deposited 2021-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 22 PDB declaration: 22-meric	Chain O 1–109（109 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 9.82 Å
7EGJ SCP promoter-bound TFIID-TFIIA in post TBP-loading state Deposited 2021-03-24	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain O 1–109（109 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 8.64 Å
7ENA TFIID-based PIC-Mediator holo-complex in pre-assembled state (pre-hPIC-MED) Deposited 2021-04-16	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 74 PDB declaration: 76-meric	Chain DO 1–109（109 aa）	Not recorded	ZN ZINC ION × 16 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.07 Å
7ENC TFIID-based PIC-Mediator holo-complex in fully-assembled state (hPIC-MED) Deposited 2021-04-16	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 74 PDB declaration: 76-meric	Chain DO 1–109（109 aa）	Not recorded	ZN ZINC ION × 16 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.13 Å
7LBM Structure of the human Mediator-bound transcription pre-initiation complex Deposited 2021-01-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 54 PDB declaration: 56-meric	Chain N 1–109（109 aa）	Not recorded	MG MAGNESIUM ION × 2 ZN ZINC ION × 16 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.80 Å
7NVR Human Mediator with RNA Polymerase II Pre-initiation complex Deposited 2021-03-15	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 56 PDB declaration: 58-meric	Chain V 1–109（109 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 18 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.50 Å
7NVS RNA polymerase II core pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain V 1–109（109 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7NVT RNA polymerase II core pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain V 1–109（109 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7NVU RNA polymerase II core pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric	Chain V 1–109（109 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
7NVY RNA polymerase II pre-initiation complex with closed promoter DNA in proximal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain V 1–109（109 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.30 Å
7NVZ RNA polymerase II pre-initiation complex with closed promoter DNA in distal position Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain V 1–109（109 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
7NW0 RNA polymerase II pre-initiation complex with open promoter DNA Deposited 2021-03-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric	Chain V 1–109（109 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 15 ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 2 BEF BERYLLIUM TRIFLUORIDE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.60 Å
7ZWC Structure of SNAPc:TBP-TFIIA-TFIIB sub-complex bound to U5 snRNA promoter Deposited 2022-05-19	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric	Chain V 1–109（109 aa）	Not recorded	ZN ZINC ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
7ZWD Structure of SNAPc containing Pol II pre-initiation complex bound to U5 snRNA promoter (CC) Deposited 2022-05-19	Parsed fields agree	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain V 1–109（109 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7ZX7 Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (CC) Deposited 2022-05-20	Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain V 1–109（109 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
7ZXE Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (OC) Deposited 2022-05-20	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric	Chain V 1–109（109 aa）	Not recorded	ZN ZINC ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
8BVW RNA polymerase II pre-initiation complex with the distal +1 nucleosome (PIC-Nuc18W) Deposited 2022-12-20	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 40 PDB declaration: 42-meric	Chain V 1–109（109 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.00 Å
8BYQ RNA polymerase II pre-initiation complex with the proximal +1 nucleosome (PIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 38 PDB declaration: 40-meric	Chain V 1–109（109 aa）	Not recorded	SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 16 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
8BZ1 RNA polymerase II core pre-initiation complex with the proximal +1 nucleosome (cPIC-Nuc10W) Deposited 2022-12-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 26 PDB declaration: 28-meric	Chain V 1–109（109 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8GXQ PIC-Mediator in complex with +1 nucleosome (T40N) in MH-binding state Deposited 2022-09-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 83 PDB declaration: 87-meric	Chain DO 1–109（109 aa）	Not recorded	ZN ZINC ION × 19 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.04 Å
8GXS PIC-Mediator in complex with +1 nucleosome (T40N) in H-binding state Deposited 2022-09-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 83 PDB declaration: 87-meric	Chain DO 1–109（109 aa）	Not recorded	ZN ZINC ION × 19 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.16 Å
8S51 RNA polymerase II core initially transcribing complex with an ordered RNA of 8 nt Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain V 1–109（109 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8S52 RNA polymerase II core initially transcribing complex with an ordered RNA of 10 nt Deposited 2024-02-22	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain V 1–109（109 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
8S5N RNA polymerase II core initially transcribing complex with an ordered RNA of 12 nt Deposited 2024-02-24	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 20 PDB declaration: 23-meric	Chain V 1–109（109 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8WAK Structure of transcribing complex 2 (TC2), the initially transcribing complex with Pol II positioned 2nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain O 1–109（109 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.47 Å
8WAL Structure of transcribing complex 3 (TC3), the initially transcribing complex with Pol II positioned 3nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain O 1–109（109 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 8.52 Å
8WAN Structure of transcribing complex 4 (TC4), the initially transcribing complex with Pol II positioned 4nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain O 1–109（109 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.07 Å
8WAO Structure of transcribing complex 5 (TC5), the initially transcribing complex with Pol II positioned 5nt downstream of TSS. Deposited 2023-09-07	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain O 1–109（109 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.40 Å
8WAP Structure of transcribing complex 6 (TC6), the initially transcribing complex with Pol II positioned 6nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain O 1–109（109 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.85 Å
8WAQ Structure of transcribing complex 7 (TC7), the initially transcribing complex with Pol II positioned 7nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain O 1–109（109 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.29 Å
8WAR Structure of transcribing complex 8 (TC8), the initially transcribing complex with Pol II positioned 8nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain O 1–109（109 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.20 Å
8WAS Structure of transcribing complex 9 (TC9), the initially transcribing complex with Pol II positioned 9nt downstream of TSS. Deposited 2023-09-08	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 48 PDB declaration: 51-meric	Chain O 1–109（109 aa）	Not recorded	ZN ZINC ION × 17 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 W0F [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-purin-9-yl)-3-methoxy-4-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.13 Å

53 other PDB entries and 53 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	T2AG_HUMAN
Isoform	—
PDB entities	20
Chains and sequence ranges	Author chain V； PDBConstruct 1–109； UniProt 1–109

snRNA-activating protein complex subunit 1

Homo sapiens

UniProt Q16533

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein–DNA Heteromer Protein × 22 DNA 2 PDB declaration: 24-meric（24） Consistent with all polymer counts	Chain a； UniProt 1–368	Not recorded	DNA-directed RNA polymerase subunit × 1 （A0A8D1DPV6） DNA-directed RNA polymerase subunit beta × 1 （I3LGP4） DNA-directed RNA polymerase II subunit RPB3 × 1 （I3LCH3） RNA polymerase II subunit D × 1 （A0A287ADR4） DNA-directed RNA polymerase II subunit E × 1 （I3LSI7） DNA-directed RNA polymerase II subunit F × 1 （F1SKN8） DNA-directed RNA polymerase II subunit RPB7 × 1 （I3LJZ9） DNA-directed RNA polymerases I, II, and III subunit RPABC3 × 1 （A0A4X1ULF2） DNA-directed RNA polymerase II subunit RPB9 × 1 （P60899） DNA-directed RNA polymerases I, II, and III subunit RPABC5 × 1 （A0A4X1VYD0） RNA polymerase II subunit J × 1 （A0A4X1UK25） RNA polymerase II subunit K × 1 （I3LN51） Transcription initiation factor IIB × 1 （Q00403） Non-template strand × 1 TATA-box-binding protein × 1 （P20226） General transcription factor IIF subunit 1 × 1 （P35269） General transcription factor IIF subunit 2 × 1 （P13984） Template strand × 1 Transcription initiation factor IIA subunit 1 × 1 （P52655） Transcription initiation factor IIA subunit 2 × 1 （P52657） snRNA-activating protein complex subunit 3 × 1 （Q92966） snRNA-activating protein complex subunit 4 × 1 （Q5SXM2） snRNA-activating protein complex subunit 5 × 1 （O75971） ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.00 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7ZX8	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
7XUR The cryo-EM structure of human mini-SNAPc in complex with hU6-1 PSE Deposited 2022-05-19	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain C 1–268（268 aa）	Not recorded	ZN ZINC ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.49 Å
7ZWC Structure of SNAPc:TBP-TFIIA-TFIIB sub-complex bound to U5 snRNA promoter Deposited 2022-05-19	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric	Chain a 1–368（368 aa）	Not recorded	ZN ZINC ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
7ZWD Structure of SNAPc containing Pol II pre-initiation complex bound to U5 snRNA promoter (CC) Deposited 2022-05-19	Parsed fields agree	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain a 1–368（368 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7ZX7 Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (CC) Deposited 2022-05-20	Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain a 1–368（368 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
7ZXE Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (OC) Deposited 2022-05-20	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric	Chain a 1–368（368 aa）	Not recorded	ZN ZINC ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
8ITY human RNA polymerase III pre-initiation complex closed DNA 1 Deposited 2023-03-23	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain 1 1–368（368 aa）	Not recorded	ZN ZINC ION × 7 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 3.90 Å
8IUE RNA polymerase III pre-initiation complex melting complex 1 Deposited 2023-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain 1 1–368（368 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 4.10 Å
8IUH RNA polymerase III pre-initiation complex open complex 1 Deposited 2023-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain 1 1–368（368 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 3.40 Å
9FSO Human RNA Polymerase III Class III Open Pre-initiation Complex 1 (OC1) Deposited 2024-06-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain U 1–368（368 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.28 Å
9FSP RNA Polymerase III Class III Open Pre-initation Complex 2 (OC2) Deposited 2024-06-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain U 1–368（368 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.39 Å
9FSQ RNA Polymerase III Class III Melting Pre-Initiation Complex (MC) Deposited 2024-06-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain U 1–368（368 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.51 Å
9FSR RNA Polymerase III Class III Open Mini Pre-initiation Complex 1 (OC1-mini) Deposited 2024-06-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain U 1–368（368 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.76 Å
9FSS RNA Polymerase III Class III Open Mini Pre-Initiation complex 2 (OC2-mini) Deposited 2024-06-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain U 1–368（368 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.14 Å
9K3B Human RNA Polymerase III de novo transcribing complex 10 overall (TC10-overall) Deposited 2024-10-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 23 PDB declaration: 26-meric	Chain 1 1–368（368 aa）	Not recorded	ZN ZINC ION × 6 MG MAGNESIUM ION × 1 3AT 3'-DEOXYADENOSINE-5'-TRIPHOSPHATE × 1 SF4 IRON/SULFUR CLUSTER × 1 GTP GUANOSINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 4.80 Å
9K3U Human RNA Polymerase III de novo transcribing complex 5 (TC5) Deposited 2024-10-20	Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Other combination Heteromer；Protein × 23 PDB declaration: 26-meric	Chain 1 1–368（368 aa）	Not recorded	ZN ZINC ION × 7 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1 GTP GUANOSINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 3.00 Å
9K3V Human RNA Polymerase III de novo transcribing complex 4 (TC4) Deposited 2024-10-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 23 PDB declaration: 26-meric	Chain 1 1–368（368 aa）	Not recorded	ZN ZINC ION × 7 3AT 3'-DEOXYADENOSINE-5'-TRIPHOSPHATE × 1 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 GTP GUANOSINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 3.50 Å
9LXN Human RNA Polymerase III de novo transcribing complex 5 (TC5)(without 3'dATP) Deposited 2025-02-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 23 PDB declaration: 26-meric	Chain 1 1–368（368 aa）	Not recorded	ZN ZINC ION × 7 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1 GTP GUANOSINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 3.30 Å

17 other PDB entries and 17 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	SNPC1_HUMAN
Isoform	—
PDB entities	21
Chains and sequence ranges	Author chain a； PDBConstruct 1–368； UniProt 1–368

snRNA-activating protein complex subunit 3

Homo sapiens

UniProt Q92966

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein–DNA Heteromer Protein × 22 DNA 2 PDB declaration: 24-meric（24） Consistent with all polymer counts	Chain b； UniProt 1–411	Not recorded	DNA-directed RNA polymerase subunit × 1 （A0A8D1DPV6） DNA-directed RNA polymerase subunit beta × 1 （I3LGP4） DNA-directed RNA polymerase II subunit RPB3 × 1 （I3LCH3） RNA polymerase II subunit D × 1 （A0A287ADR4） DNA-directed RNA polymerase II subunit E × 1 （I3LSI7） DNA-directed RNA polymerase II subunit F × 1 （F1SKN8） DNA-directed RNA polymerase II subunit RPB7 × 1 （I3LJZ9） DNA-directed RNA polymerases I, II, and III subunit RPABC3 × 1 （A0A4X1ULF2） DNA-directed RNA polymerase II subunit RPB9 × 1 （P60899） DNA-directed RNA polymerases I, II, and III subunit RPABC5 × 1 （A0A4X1VYD0） RNA polymerase II subunit J × 1 （A0A4X1UK25） RNA polymerase II subunit K × 1 （I3LN51） Transcription initiation factor IIB × 1 （Q00403） Non-template strand × 1 TATA-box-binding protein × 1 （P20226） General transcription factor IIF subunit 1 × 1 （P35269） General transcription factor IIF subunit 2 × 1 （P13984） Template strand × 1 Transcription initiation factor IIA subunit 1 × 1 （P52655） Transcription initiation factor IIA subunit 2 × 1 （P52657） snRNA-activating protein complex subunit 1 × 1 （Q16533） snRNA-activating protein complex subunit 4 × 1 （Q5SXM2） snRNA-activating protein complex subunit 5 × 1 （O75971） ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.00 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7ZX8	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
7XUR The cryo-EM structure of human mini-SNAPc in complex with hU6-1 PSE Deposited 2022-05-19	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 1–411（411 aa）	Not recorded	ZN ZINC ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.49 Å
7ZWC Structure of SNAPc:TBP-TFIIA-TFIIB sub-complex bound to U5 snRNA promoter Deposited 2022-05-19	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric	Chain b 1–411（411 aa）	Not recorded	ZN ZINC ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
7ZWD Structure of SNAPc containing Pol II pre-initiation complex bound to U5 snRNA promoter (CC) Deposited 2022-05-19	Parsed fields agree	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain b 1–411（411 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7ZX7 Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (CC) Deposited 2022-05-20	Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain b 1–411（411 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
7ZXE Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (OC) Deposited 2022-05-20	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric	Chain b 1–411（411 aa）	Not recorded	ZN ZINC ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
8ITY human RNA polymerase III pre-initiation complex closed DNA 1 Deposited 2023-03-23	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain 3 1–411（411 aa）	Not recorded	ZN ZINC ION × 7 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 3.90 Å
8IUE RNA polymerase III pre-initiation complex melting complex 1 Deposited 2023-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain 3 1–411（411 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 4.10 Å
8IUH RNA polymerase III pre-initiation complex open complex 1 Deposited 2023-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain 3 1–411（411 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 3.40 Å
9FSO Human RNA Polymerase III Class III Open Pre-initiation Complex 1 (OC1) Deposited 2024-06-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain Z 1–411（411 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.28 Å
9FSP RNA Polymerase III Class III Open Pre-initation Complex 2 (OC2) Deposited 2024-06-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain Z 1–411（411 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.39 Å
9FSQ RNA Polymerase III Class III Melting Pre-Initiation Complex (MC) Deposited 2024-06-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain Z 1–411（411 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.51 Å
9FSR RNA Polymerase III Class III Open Mini Pre-initiation Complex 1 (OC1-mini) Deposited 2024-06-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain Z 1–411（411 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.76 Å
9FSS RNA Polymerase III Class III Open Mini Pre-Initiation complex 2 (OC2-mini) Deposited 2024-06-21	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain Z 1–411（411 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.14 Å
9K3B Human RNA Polymerase III de novo transcribing complex 10 overall (TC10-overall) Deposited 2024-10-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 23 PDB declaration: 26-meric	Chain 3 1–411（411 aa）	Not recorded	ZN ZINC ION × 6 MG MAGNESIUM ION × 1 3AT 3'-DEOXYADENOSINE-5'-TRIPHOSPHATE × 1 SF4 IRON/SULFUR CLUSTER × 1 GTP GUANOSINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 4.80 Å
9K3U Human RNA Polymerase III de novo transcribing complex 5 (TC5) Deposited 2024-10-20	Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Other combination Heteromer；Protein × 23 PDB declaration: 26-meric	Chain 3 1–411（411 aa）	Not recorded	ZN ZINC ION × 7 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1 GTP GUANOSINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 3.00 Å
9K3V Human RNA Polymerase III de novo transcribing complex 4 (TC4) Deposited 2024-10-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 23 PDB declaration: 26-meric	Chain 3 1–411（411 aa）	Not recorded	ZN ZINC ION × 7 3AT 3'-DEOXYADENOSINE-5'-TRIPHOSPHATE × 1 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 GTP GUANOSINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 3.50 Å
9LXN Human RNA Polymerase III de novo transcribing complex 5 (TC5)(without 3'dATP) Deposited 2025-02-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 23 PDB declaration: 26-meric	Chain 3 1–411（411 aa）	Not recorded	ZN ZINC ION × 7 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1 GTP GUANOSINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 3.30 Å

17 other PDB entries and 17 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	SNPC3_HUMAN
Isoform	—
PDB entities	22
Chains and sequence ranges	Author chain b； PDBConstruct 1–411； UniProt 1–411

snRNA-activating protein complex subunit 4

Homo sapiens

UniProt Q5SXM2

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein–DNA Heteromer Protein × 22 DNA 2 PDB declaration: 24-meric（24） Consistent with all polymer counts	Chain c； UniProt 1–1469	Not recorded	DNA-directed RNA polymerase subunit × 1 （A0A8D1DPV6） DNA-directed RNA polymerase subunit beta × 1 （I3LGP4） DNA-directed RNA polymerase II subunit RPB3 × 1 （I3LCH3） RNA polymerase II subunit D × 1 （A0A287ADR4） DNA-directed RNA polymerase II subunit E × 1 （I3LSI7） DNA-directed RNA polymerase II subunit F × 1 （F1SKN8） DNA-directed RNA polymerase II subunit RPB7 × 1 （I3LJZ9） DNA-directed RNA polymerases I, II, and III subunit RPABC3 × 1 （A0A4X1ULF2） DNA-directed RNA polymerase II subunit RPB9 × 1 （P60899） DNA-directed RNA polymerases I, II, and III subunit RPABC5 × 1 （A0A4X1VYD0） RNA polymerase II subunit J × 1 （A0A4X1UK25） RNA polymerase II subunit K × 1 （I3LN51） Transcription initiation factor IIB × 1 （Q00403） Non-template strand × 1 TATA-box-binding protein × 1 （P20226） General transcription factor IIF subunit 1 × 1 （P35269） General transcription factor IIF subunit 2 × 1 （P13984） Template strand × 1 Transcription initiation factor IIA subunit 1 × 1 （P52655） Transcription initiation factor IIA subunit 2 × 1 （P52657） snRNA-activating protein complex subunit 1 × 1 （Q16533） snRNA-activating protein complex subunit 3 × 1 （Q92966） snRNA-activating protein complex subunit 5 × 1 （O75971） ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.00 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7ZX8	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
7XUR The cryo-EM structure of human mini-SNAPc in complex with hU6-1 PSE Deposited 2022-05-19	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain A 1–505（505 aa）	Not recorded	ZN ZINC ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.49 Å
7ZWC Structure of SNAPc:TBP-TFIIA-TFIIB sub-complex bound to U5 snRNA promoter Deposited 2022-05-19	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric	Chain c 1–1469（1469 aa）	Not recorded	ZN ZINC ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
7ZWD Structure of SNAPc containing Pol II pre-initiation complex bound to U5 snRNA promoter (CC) Deposited 2022-05-19	Parsed fields agree	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain c 1–1469（1469 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7ZX7 Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (CC) Deposited 2022-05-20	Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain c 1–1469（1469 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
7ZXE Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (OC) Deposited 2022-05-20	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric	Chain c 1–1469（1469 aa）	Not recorded	ZN ZINC ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
8ITY human RNA polymerase III pre-initiation complex closed DNA 1 Deposited 2023-03-23	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain 4 1–1469（1469 aa）	Not recorded	ZN ZINC ION × 7 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 3.90 Å
8IUE RNA polymerase III pre-initiation complex melting complex 1 Deposited 2023-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain 4 1–1469（1469 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 4.10 Å
8IUH RNA polymerase III pre-initiation complex open complex 1 Deposited 2023-03-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain 4 1–1469（1469 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 3.40 Å
9FSO Human RNA Polymerase III Class III Open Pre-initiation Complex 1 (OC1) Deposited 2024-06-21	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain W 2–1469（1468 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.28 Å
9FSP RNA Polymerase III Class III Open Pre-initation Complex 2 (OC2) Deposited 2024-06-21	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain W 2–1469（1468 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.39 Å
9FSQ RNA Polymerase III Class III Melting Pre-Initiation Complex (MC) Deposited 2024-06-21	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain W 2–1469（1468 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.51 Å
9FSR RNA Polymerase III Class III Open Mini Pre-initiation Complex 1 (OC1-mini) Deposited 2024-06-21	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain W 2–1469（1468 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.76 Å
9FSS RNA Polymerase III Class III Open Mini Pre-Initiation complex 2 (OC2-mini) Deposited 2024-06-21	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 23 PDB declaration: 25-meric	Chain W 2–1469（1468 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.14 Å
9K3B Human RNA Polymerase III de novo transcribing complex 10 overall (TC10-overall) Deposited 2024-10-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 23 PDB declaration: 26-meric	Chain 4 1–1469（1469 aa）	Not recorded	ZN ZINC ION × 6 MG MAGNESIUM ION × 1 3AT 3'-DEOXYADENOSINE-5'-TRIPHOSPHATE × 1 SF4 IRON/SULFUR CLUSTER × 1 GTP GUANOSINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 4.80 Å
9K3U Human RNA Polymerase III de novo transcribing complex 5 (TC5) Deposited 2024-10-20	Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Other combination Heteromer；Protein × 23 PDB declaration: 26-meric	Chain 4 1–1469（1469 aa）	Not recorded	ZN ZINC ION × 7 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1 GTP GUANOSINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 3.00 Å
9K3V Human RNA Polymerase III de novo transcribing complex 4 (TC4) Deposited 2024-10-20	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 23 PDB declaration: 26-meric	Chain 4 1–1469（1469 aa）	Not recorded	ZN ZINC ION × 7 3AT 3'-DEOXYADENOSINE-5'-TRIPHOSPHATE × 1 SF4 IRON/SULFUR CLUSTER × 1 MG MAGNESIUM ION × 1 GTP GUANOSINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 3.50 Å
9LXN Human RNA Polymerase III de novo transcribing complex 5 (TC5)(without 3'dATP) Deposited 2025-02-18	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 23 PDB declaration: 26-meric	Chain 4 1–1469（1469 aa）	Not recorded	ZN ZINC ION × 7 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1 GTP GUANOSINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 3.30 Å

17 other PDB entries and 17 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	SNPC4_HUMAN
Isoform	—
PDB entities	23
Chains and sequence ranges	Author chain c； PDBConstruct 1–1469； UniProt 1–1469

snRNA-activating protein complex subunit 5

Homo sapiens

UniProt O75971

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein–DNA Heteromer Protein × 22 DNA 2 PDB declaration: 24-meric（24） Consistent with all polymer counts	Chain d； UniProt 1–98	Not recorded	DNA-directed RNA polymerase subunit × 1 （A0A8D1DPV6） DNA-directed RNA polymerase subunit beta × 1 （I3LGP4） DNA-directed RNA polymerase II subunit RPB3 × 1 （I3LCH3） RNA polymerase II subunit D × 1 （A0A287ADR4） DNA-directed RNA polymerase II subunit E × 1 （I3LSI7） DNA-directed RNA polymerase II subunit F × 1 （F1SKN8） DNA-directed RNA polymerase II subunit RPB7 × 1 （I3LJZ9） DNA-directed RNA polymerases I, II, and III subunit RPABC3 × 1 （A0A4X1ULF2） DNA-directed RNA polymerase II subunit RPB9 × 1 （P60899） DNA-directed RNA polymerases I, II, and III subunit RPABC5 × 1 （A0A4X1VYD0） RNA polymerase II subunit J × 1 （A0A4X1UK25） RNA polymerase II subunit K × 1 （I3LN51） Transcription initiation factor IIB × 1 （Q00403） Non-template strand × 1 TATA-box-binding protein × 1 （P20226） General transcription factor IIF subunit 1 × 1 （P35269） General transcription factor IIF subunit 2 × 1 （P13984） Template strand × 1 Transcription initiation factor IIA subunit 1 × 1 （P52655） Transcription initiation factor IIA subunit 2 × 1 （P52657） snRNA-activating protein complex subunit 1 × 1 （Q16533） snRNA-activating protein complex subunit 3 × 1 （Q92966） snRNA-activating protein complex subunit 4 × 1 （Q5SXM2） ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.00 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7ZX8	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
7ZWC Structure of SNAPc:TBP-TFIIA-TFIIB sub-complex bound to U5 snRNA promoter Deposited 2022-05-19	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric	Chain d 1–98（98 aa）	Not recorded	ZN ZINC ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
7ZWD Structure of SNAPc containing Pol II pre-initiation complex bound to U5 snRNA promoter (CC) Deposited 2022-05-19	Parsed fields agree	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain d 1–98（98 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7ZX7 Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (CC) Deposited 2022-05-20	Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 22 PDB declaration: 24-meric	Chain d 1–98（98 aa）	Not recorded	ZN ZINC ION × 11 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
7ZXE Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (OC) Deposited 2022-05-20	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric	Chain d 1–98（98 aa）	Not recorded	ZN ZINC ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å

4 other PDB entries and 4 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	SNPC5_HUMAN
Isoform	—
PDB entities	24
Chains and sequence ranges	Author chain d； PDBConstruct 1–98； UniProt 1–98

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

P(r) Distance Distribution P(r) Distribution

Download Download SAXS (.dat) P(r) (.pr.out) CIF

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	7zx8
Deposition date deposition_date	2022-05-20
Structure title title	Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (OC)
Keywords keywords	RNA polymerase II, Pol II, PIC, SNAPc, snRNA, U1 promoter, TRANSCRIPTION; TRANSCRIPTION
Experimental Method method	ELECTRON MICROSCOPY

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3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier	65.30 Å
Radius of gyration Rg (electron density) rg_electron	65.17 Å
Forward intensity I(0) i0	7589110000.00
Molecular weight molecular_weight	707950.0 kDa
Excluded volume excluded_volume	874470 Å³
Envelope volume envelope_volume	1327200 Å³
Hydration-shell volume shell_volume	165650 Å³
Envelope diameter envelope_diameter	218.5 Å
Shell Rg shell_rg	68.51 Å
Envelope Rg envelope_rg	64.22 Å
Shape Rg shape_rg	65.21 Å
Total Rg total_rg	65.08 Å
Total atoms total_atoms	49534
Residues n_residues	5967
Spherical-harmonic order n_harmonics	20
q range q_range	— – 0.5000 Å⁻¹
Data points n_points	101
Shell type shell_type	directional
Solvent electron density solvent_density	0.3340 e/Å³
Shell contrast contrast_shell	0.0300 e/Å³
CRYSOL version crysol_version	4.1.3

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4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax	253.9 Å
Rg (real space) rg_real	69.51 Å
Rg uncertainty (real space) rg_real_error	1.90 Å
I(0) (real space) i0_real	7.6720e+09
I(0) uncertainty (real space) i0_real_error	1.6920e+08
Rg (reciprocal space) rg_reciprocal	65.30 Å
I(0) (reciprocal space) i0_reciprocal	7589000000.0000
Solution quality estimate total_estimate	0.8656
Solution quality rating solution_quality	GOOD a GOOD solution
P(r) peaks n_peaks	1
Primary peak position r_peak_primary	74.1 Å
Skewness Skewness skewness	0.662
Kurtosis Kurtosis kurtosis	0.381
Angular range angular_range	— – 0.1200 Å⁻¹
Current regularization parameter α current_alpha	0.8044
Highest regularization parameter α highest_alpha	688500000.0000
Real-space data points n_real_points	25
GNOM version gnom_version	4.1.3
Quality Criteria quality_criteria	AN1: 0.000; Oscil: 0.636; Stabil: 0.846; Sysdev: 1.000; Positv: 1.000; Valcen: 0.995; Smooth: 0.897

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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (26)

Entity 1 Entity 1 polymer

Description description	DNA-directed RNA polymerase subunit
Molecular weight formula_weight	217450.1 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	49534

MHGGGPPSGDSACPLRTIKRVQFGVLSPDELKRMSVTEGGIKYPETTEGGRPKLGGLMDPRQGVIERTGRCQTCAGNMTECPGHFGHIELAKPVFHVGFLVKTMKVLRCVCFFCSKLLVDSNNPKIKDILAKSKGQPKKRLTHVYDLCKGKNICEGGEEMDNKFGVEQPEGDEDLTKEKGHGGCGRYQPRIRRSGLELYAEWKHVNEDSQEKKILLSPERVHEIFKRISDEECFVLGMEPRYARPEWMIVTVLPVPPLSVRPAVVMQGSARNQDDLTHKLADIVKINNQLRRNEQNGAAAHVIAEDVKLLQFHVATMVDNELPGLPRAMQKSGRPLKSLKQRLKGKEGRVRGNLMGKRVDFSARTVITPDPNLSIDQVGVPRSIAANMTFAEIVTPFNIDRLQELVRRGNSQYPGAKYIIRDNGDRIDLRFHPKPSDLHLQTGYKVERHMCDGDIVIFNRQPTLHKMSMMGHRVRILPWSTFRLNLSVTTPYNADFDGDEMNLHLPQSLETRAEIQELAMVPRMIVTPQSNRPVMGIVQDTLTAVRKFTKRDVFLERGEVMNLLMFLSTWDGKVPQPAILKPRPLWTGKQIFSLIIPGHINCIRTHSTHPDDEDSGPYKHISPGDTKVVVENGELIMGILCKKSLGTSAGSLVHISYLEMGHDITRLFYSNIQTVINNWLLIEGHTIGIGDSIADSKTYQDIQNTIKKAKQDVIEVIEKAHNNELEPTPGNTLRQTFENQVNRILNDARDKTGSSAQKSLSEYNNFKSMVVSGAKGSKINISQVIAVVGQQNVEGKRIPFGFKHRTLPHFIKDDYGPESRGFVENSYLAGLTPTEFFFHAMGGREGLIDTAVKTAETGYIQRRLIKSMESVMVKYDATVRNSINQVVQLRYGEDGLAGESVEFQNLATLKPSNKAFEKKFRFDYTNERALRRTLQEDLVKDVLSNAHIQNELEREFERMREDREVLRVIFPTGDSKVVLPCNLLRMIWNAQKIFHINPRLPSDLHPIKVVEGVKELSKKLVIVNGDDPLSRQAQENATLLFNIHLRSTLCSRRMAEEFRLSGEAFDWLLGEIESKFNQAIAHPGEMVGALAAQSLGEPATQMTLNTFHYAGVSAKNVTLGVPRLKELINISKKPKTPSLTVFLLGQSARDAERAKDILCRLEHTTLRKVTANTAIYYDPNPQSTVVAEDQEWVNVYYEMPDFDVARISPWLLRVELDRKHMTDRKLTMEQIAEKINAGFGDDLNCIFNDDNAEKLVLRIRIMNSDENKMQEEEEVVDKMDDDVFLRCIESNMLTDMTLQGIEQISKVYMHLPQTDNKKKIIITEDGEFKALQEWILETDGVSLMRVLSEKDVDPVRTTSNDIVEIFTVLGIEAVRKALERELYHVISFDGSYVNYRHLALLCDTMTCRGHLMAITRHGVNRQDTGPLMKCSFEETVDVLMEAAAHGESDPMKGVSENIMLGQLAPAGTGCFDLLLDAEKCKYGMEIPTNIPGLGAAGPTGMFFGSAPSPMGGISPAMTPWNQGATPAYGAWSPSVGSGMTPGAAGFSPSAASDASGFSPGYSPAWSPTPGSPGSPGPSSPYIPSPGGAMSPSYSPTSPAYEPRSPGGYTPQSPSYSPTSPSYSPTSPSYSPTSPNYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPNYSPTSPNYTPTSPSYSPTSPSYSPTSPNYTPTSPNYSPTSPSYSPTSPSYSPTSPSYSPSSPRYTPQSPTYTPSSPSYSPSSPSYSPTSPKYTPTSPSYSPSSPEYTPTSPKYSPTSPKYSPTSPKYSPTSPTYSPTTPKYSPTSPTYSPTSPVYTPTSPKYSPTSPTYSPTSPKYSPTSPTYSPTSPKGSTYSPTSPGYSPTSPTYSLTSPAISPDDSDEEN

Entity 2 Entity 2 polymer

Description description	DNA-directed RNA polymerase subunit beta
Molecular weight formula_weight	134041.4 kDa
EC 编号 ec_number	2.7.7.6
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B

MYDADEDMQYDEDDDEITPDLWQEACWIVISSYFDEKGLVRQQLDSFDEFIQMSVQRIVEDAPPIDLQAEAQHASGEVEEPPRYLLKFEQIYLSKPTHWERDGAPSPMMPNEARLRNLTYSAPLYVDITKTVIKEGEEQLQTQHQKTFIGKIPIMLRSTYCLLNGLTDRDLCELNECPLDPGGYFIINGSEKVLIAQEKMATNTVYVFAKKDSKYAYTGECRSCLENSSRPTSTIWVSMLARGGQGAKKSAIGQRIVATLPYIKQEVPIIIVFRALGFVSDRDILEHIIYDFEDPEMMEMVKPSLDEAFVIQEQNVALNFIGSRGAKPGVTKEKRIKYAKEVLQKEMLPHVGVSDFCETKKAYFLGYMVHRLLLAALGRRELDDRDHYGNKRLDLAGPLLAFLFRGMFKNLLKEVRIYAQKFIDRGKDFNLELAIKTRIISDGLKYSLATGNWGDQKKAHQARAGVSQVLNRLTFASTLSHLRRLNSPIGRDGKLAKPRQLHNTLWGMVCPAETPEGHAVGLVKNLALMAYISVGSQPSPILEFLEEWSMENLEEISPAAIADATKIFVNGCWVGIHKDPEQLMNTLRKLRRQMDIIVSEVSMIRDIREREIRIYTDAGRICRPLLIVEKQKLLLKKRHIDQLKEREYNNYSWQDLVASGVVEYIDTLEEETVMLAMTPDDLQEKEVAYCSTYTHCEIHPSMILGVCASIIPFPDHNQSPRNTYQSAMGKQAMGVYITNFHVRMDTLAHVLYYPQKPLVTTRSMEYLRFRELPAGINSIVAIASYTGYNQEDSVIMNRSAVDRGFFRSVFYRSYKEQESKKGFDQEEVFEKPTRETCQGMRHAIYDKLDDDGLIAPGVRVSGDDVIIGKTVTLPENEDELEGTNRRYTKRDCSTFLRTSETGIVDQVMVTLNQEGYKFCKIRVRSVRIPQIGDKFASRHGQKGTCGIQYRQEDMPFTCEGITPDIIINPHAIPSRMTIGHLIECLQGKVSANKGEIGDATPFNDAVNVQKISNLLSDYGYHLRGNEVLYNGFTGRKITSQIFIGPTYYQRLKHMVDDKIHSRARGPIQILNRQPMEGRSRDGGLRFGEMERDCQIAHGAAQFLRERLFEASDPYQVHVCNLCGIMAIANTRTHTYECRGCRNKTQISLVRMPYACKLLFQELMSMSIAPRMMSV

Entity 3 Entity 3 polymer

Description description	DNA-directed RNA polymerase II subunit RPB3
Molecular weight formula_weight	31439.1 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	C

MPYANQPTVRITELTDENVKFIIENTDLAVANSIRRVFIAEVPIIAIDWVQIDANSSVLHDEFIAHRLGLIPLTSDDIVDKLQYSRDCTCEEFCPECSVEFTLDVRCNEDQTRHVTSRDLISNSPRVIPVTSRNRDNDPSDYVEQDDILIVKLRKGQELRLRAYAKKGFGKEHAKWNPTAGVAFEYDPDNALRHTVYPKPEEWPKSEYSELDEDESQAPYDPNGKPERFYYNVESCGSLRPETIVLSALSGLKKKLSDLQTQLSHEIQSDVLTIN

Entity 4 Entity 4 polymer

Description description	RNA polymerase II subunit D
Molecular weight formula_weight	16331.3 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	D

MAAGGSDPRAGDVEEDASQLIFPKEFETAETLLNSEVHMLLEHRKQQNESAEDEQELSEVFMKTLNYTARFSRFKNRETIASVRSLLLQKKLHKFELACLANLCPETAEESKALIPSLEGRFEDEELQQILDDIQTKRSFQY

Entity 5 Entity 5 polymer

Description description	DNA-directed RNA polymerase II subunit E
Molecular weight formula_weight	24644.3 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	E

MDDEEETYRLWKIRKTIMQLCHDRGYLVTQDELDQTLEEFKAQFGDKPSEGRPRRTDLTVLVAHNDDPTDQMFVFFPEEPKVGIKTIKVYCQRMQEENITRALIVVQQGMTPSAKQSLVDMAPKYILEQFLQQELLINITEHELVPEHVVMTKEEVTELLARYKLRENQLPRIQAGDPVARYFGIKRGQVVKIIRPSETAGRYITYRLVQ

Entity 6 Entity 6 polymer

Description description	DNA-directed RNA polymerase II subunit F
Molecular weight formula_weight	14477.0 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	F

MSDNEDNFDGDDFDDVEEDEGLDDLENAEEEGQENVEILPSGERPQANQKRITTPYMTKYERARVLGTRALQIAMCAPVMVELEGETDPLLIAMKELKARKIPIIIRRYLPDGSYEDWGVDELIISD

Entity 7 Entity 7 polymer

Description description	DNA-directed RNA polymerase II subunit RPB7
Molecular weight formula_weight	19314.3 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	G

MFYHISLEHEILLHPRYFGPNLLNTVKQKLFTEVEGTCTGKYGFVIAVTTIDNIGAGVIQPGRGFVLYPVKYKAIVFRPFKGEVVDAVVTQVNKVGLFTEIGPMSCFISRHSIPSEMEFDPNSNPPCYKTMDEDIVIQQDDEIRLKIVGTRVDKNDIFAIGSLMDDYLGLVS

Entity 8 Entity 8 polymer

Description description	DNA-directed RNA polymerases I, II, and III subunit RPABC3
Molecular weight formula_weight	17162.3 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	H

MAGILFEDIFDVKDIDPEGKKFDRVSRLHCESESFKMDLILDVNIQIYPVDLGDKFRLVIASTLYEDGTLDDGEYNPTDDRPSRADQFEYVMYGKVYRIEGDETSTEAATRLSAYVSYGGLLMRLQGDANNLHGFEVDSRVYLLMKKLAF

Entity 9 Entity 9 polymer

Description description	DNA-directed RNA polymerase II subunit RPB9
Molecular weight formula_weight	14541.2 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	I

MEPDGTYEPGFVGIRFCQECNNMLYPKEDKENRILLYACRNCDYQQEADNSCIYVNKITHEVDELTQIIADVSQDPTLPRTEDHPCQKCGHKEAVFFQSHSARAEDAMRLYYVCTAPHCGHRWTE

Entity 10 Entity 10 polymer

Description description	DNA-directed RNA polymerases I, II, and III subunit RPABC5
Molecular weight formula_weight	7655.1 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	J

MIIPVRCFTCGKIVGNKWEAYLGLLQAEYTEGDALDALGLKRYCCRRMLLAHVDLIEKLLNYAPLEK

Entity 11 Entity 11 polymer

Description description	RNA polymerase II subunit J
Molecular weight formula_weight	13310.3 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	K

MNAPPAFESFLLFEGEKKITINKDTKVPNACLFTINKEDHTLGNIIKSQLLKDPQVLFAGYKVPHPLEHKIIIRVQTTPDYSPQEAFTNAITDLISELSLLEERFRVAIKDKQEGIE

Entity 12 Entity 12 polymer

Description description	RNA polymerase II subunit K
Molecular weight formula_weight	7018.2 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	L

MDTQKDVQPPKQQPMIYICGECHTENEIKSRDPIRCRECGYRIMYKKRTKRLVVFDAR

Entity 13 Entity 13 polymer

Description description	Transcription initiation factor IIB
Molecular weight formula_weight	34877.9 kDa
EC 编号 ec_number	2.3.1.48
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	M

MASTSRLDALPRVTCPNHPDAILVEDYRAGDMICPECGLVVGDRVIDVGSEWRTFSNDKATKDPSRVGDSQNPLLSDGDLSTMIGKGTGAASFDEFGNSKYQNRRTMSSSDRAMMNAFKEITTMADRINLPRNIVDRTNNLFKQVYEQKSLKGRANDAIASACLYIACRQEGVPRTFKEICAVSRISKKEIGRCFKLILKALETSVDLITTGDFMSRFCSNLCLPKQVQMAATHIARKAVELDLVPGRSPISVAAAAIYMASQASAEKRTQKEIGDIAGVADVTIRQSYRLIYPRAPDLFPTDFKFDTPVDKLPQL

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Escherichia coli

Entity 14 Entity 14 polymer

Description description	Non-template strand
Molecular weight formula_weight	29969.1 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polydeoxyribonucleotide
Chain IDs strand_id	N

GCAAGTGACCGTGTGTGTAAAGAGTGAGGCGTATGAGGCTGTGTCGGGGCAGAGGCACAACGTTTCATACTTACCTGGCAGGGGAGATACCATGAT

Entity 15 Entity 15 polymer

Description description	TATA-box-binding protein
Molecular weight formula_weight	37729.9 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	O

MDQNNSLPPYAQGLASPQGAMTPGIPIFSPMMPYGTGLTPQPIQNTNSLSILEEQQRQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQAVAAAAVQQSTSQQATQGTSGQAPQLFHSQTLTTAPLPGTTPLYPSPMTPMTPITPATPASESSGIVPQLQNIVSTVNLGCKLDLKTIALRARNAEYNPKRFAAVIMRIREPRTTALIFSSGKMVCTGAKSEEQSRLAARKYARVVQKLGFPAKFLDFKIQNMVGSCDVKFPIRLEGLVLTHQQFSSYEPELFPGLIYRMIKPRIVLLIFVSGKVVLTGAKVRAEIYEAFENIYPILKGFRKTT

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Escherichia coli

Entity 16 Entity 16 polymer

Description description	General transcription factor IIF subunit 1
Molecular weight formula_weight	58343.6 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	Q

MAALGPSSQNVTEYVVRVPKNTTKKYNIMAFNAADKVNFATWNQARLERDLSNKKIYQEEEMPESGAGSEFNRKLREEARRKKYGIVLKEFRPEDQPWLLRVNGKSGRKFKGIKKGGVTENTSYYIFTQCPDGAFEAFPVHNWYNFTPLARHRTLTAEEAEEEWERRNKVLNHFSIMQQRRLKDQDQDEDEEEKEKRGRRKASELRIHDLEDDLEMSSDASDASGEEGGRVPKAKKKAPLAKGGRKKKKKKGSDDEAFEDSDDGDFEGQEVDYMSDGSSSSQEEPESKAKAPQQEEGPKGVDEQSDSSEESEEEKPPEEDKEEEEEKKAPTPQEKKRRKDSSEESDSSEESDIDSEASSALFMAKKKTPPKRERKPSGGSSRGNSRPGTPSAEGGSTSSTLRAAASKLEQGKRVSEMPAAKRLRLDTGPQSLSGKSTPQPPSGKTTPNSGDVQVTEDAVRRYLTRKPMTTKDLLKKFQTKKTGLSSEQTVNVLAQILKRLNPERKMINDKMHFSLKE

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Escherichia coli

Entity 17 Entity 17 polymer

Description description	General transcription factor IIF subunit 2
Molecular weight formula_weight	28427.3 kDa
EC 编号 ec_number	3.6.4.12
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	R

MAERGELDLTGAKQNTGVWLVKVPKYLSQQWAKASGRGEVGKLRIAKTQGRTEVSFTLNEDLANIHDIGGKPASVSAPREHPFVLQSVGGQTLTVFTESSSDKLSLEGIVVQRAECRPAASENYMRLKRLQIEESSKPVRLSQQLDKVVTTNYKPVANHQYNIEYERKKKEDGKRARADKQHVLDMLFSAFEKHQYYNLKDLVDITKQPVVYLKEILKEIGVQNVKGIHKNTWELKPEYRHYQGEEKSD

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Escherichia coli

Entity 18 Entity 18 polymer

Description description	Template strand
Molecular weight formula_weight	29261.7 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polydeoxyribonucleotide
Chain IDs strand_id	T

ATCATGGTATCTCCCCTGCCAGGTAAGTATGAAACGTTGTGCCTCTGCCCCGACACAGCCTCATACGCCTCACTCTTTACACACACGGTCACTTGC

Entity 19 Entity 19 polymer

Description description	Transcription initiation factor IIA subunit 1
Molecular weight formula_weight	41544.6 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	U

MANSANTNTVPKLYRSVIEDVINDVRDIFLDDGVDEQVLMELKTLWENKLMQSRAVDGFHSEEQQLLLQVQQQHQPQQQQHHHHHHHQQAQPQQTVPQQAQTQQVLIPASQQATAPQVIVPDSKLIQHMNASNMSAAATAATLALPAGVTPVQQILTNSGQLLQVVRAANGAQYIFQPQQSVVLQQQVIPQMQPGGVQAPVIQQVLAPLPGGISPQTGVIIQPQQILFTGNKTQVIPTTVAAPTPAQAQITATGQQQPQAQPAQTQAPLVLQVDGTGDTSSEEDEDEEEDYDDDEEEDKEKDGAEDGQVEEEPLNSEDDVSDEEGQELFDTENVVVCQYDKIHRSKNKWKFHLKDGIMNLNGRDYIFSKAIGDAEW

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Escherichia coli

Entity 20 Entity 20 polymer

Description description	Transcription initiation factor IIA subunit 2
Molecular weight formula_weight	12469.1 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	V

MAYQLYRNTTLGNSLQESLDELIQSQQITPQLALQVLLQFDKAINAALAQRVRNRVNFRGSLNTYRFCDNVWTFVLNDVEFREVTELIKVDKVKIVACDGKNTGSNTTE

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Escherichia coli

Entity 21 Entity 21 polymer

Description description	snRNA-activating protein complex subunit 1
Molecular weight formula_weight	43074.5 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	a

MGTPPGLQTDCEALLSRFQETDSVRFEDFTELWRNMKFGTIFCGRMRNLEKNMFTKEALALAWRYFLPPYTFQIRVGALYLLYGLYNTQLCQPKQKIRVALKDWDEVLKFQQDLVNAQHFDAAYIFRKLRLDRAFHFTAMPKLLSYRMKKKIHRAEVTEEFKDPSDRVMKLITSDVLEEMLNVHDHYQNMKHVISVDKSKPDKALSLIKDDFFDNIKNIVLEHQQWHKDRKNPSLKSKTNDGEEKMEGNSQETERCERAESLAKIKSKAFSVVIQASKSRRHRQVKLDSSDSDSASGQGQVKATRKKEKKERLKPAGRKMSLRNKGNVQNIHKEDKPLSLSMPVITEEEENESLSGTEFTASKKRRKH

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Trichoplusia ni

Entity 22 Entity 22 polymer

Description description	snRNA-activating protein complex subunit 3
Molecular weight formula_weight	46812.6 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	b

MAEGSRGGPTCSGVGGRQDPVSGSGGCNFPEYELPELNTRAFHVGAFGELWRGRLRGAGDLSLREPPASALPGSQAADSDREDAAVARDLDCSLEAAAELRAVCGLDKLKCLEDGEDPEVIPENTDLVTLGVRKRFLEHREETITIDRACRQETFVYEMESHAIGKKPENSADMIEEGELILSVNILYPVIFHKHKEHKPYQTMLVLGSQKLTQLRDSIRCVSDLQIGGEFSNTPDQAPEHISKDLYKSAFFYFEGTFYNDKRYPECRDLSRTIIEWSESHDRGYGKFQTARMEDFTFNDLCIKLGFPYLYCHQGDCEHVIVITDIRLVHHDDCLDRTLYPLLIKKHWLWTRKCFVCKMYTARWVTNNDSFAPEDPCFFCDVCFRMLHYDSEGNKLGEFLAYPYVDPGTFN

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Trichoplusia ni

Entity 23 Entity 23 polymer

Description description	snRNA-activating protein complex subunit 4
Molecular weight formula_weight	159645.2 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	c

MDVDAEREKITQEIKELERILDPGSSGSHVEISESSLESDSEADSLPSEDLDPADPPISEEERWGEASNDEDDPKDKTLPEDPETCLQLNMVYQEVIQEKLAEANLLLAQNREQQEELMRDLAGSKGTKVKDGKSLPPSTYMGHFMKPYFKDKVTGVGPPANEDTREKAAQGIKAFEELLVTKWKNWEKALLRKSVVSDRLQRLLQPKLLKLEYLHQKQSKVSSELERQALEKQGREAEKEIQDINQLPEEALLGNRLDSHDWEKISNINFEGSRSAEEIRKFWQNSEHPSINKQEWSREEEERLQAIAAAHGHLEWQKIAEELGTSRSAFQCLQKFQQHNKALKRKEWTEEEDRMLTQLVQEMRVGSHIPYRRIVYYMEGRDSMQLIYRWTKSLDPGLKKGYWAPEEDAKLLQAVAKYGEQDWFKIREEVPGRSDAQCRDRYLRRLHFSLKKGRWNLKEEEQLIELIEKYGVGHWAKIASELPHRSGSQCLSKWKIMMGKKQGLRRRRRRARHSVRWSSTSSSGSSSGSSGGSSSSSSSSSEEDEPEQAQAGEGDRALLSPQYMVPDMDLWVPARQSTSQPWRGGAGAWLGGPAASLSPPKGSSASQGGSKEASTTAAAPGEETSPVQVPARAHGPVPRSAQASHSADTRPAGAEKQALEGGRRLLTVPVETVLRVLRANTAARSCTQKEQLRQPPLPTSSPGVSSGDSVARSHVQWLRHRATQSGQRRWRHALHRRLLNRRLLLAVTPWVGDVVVPCTQASQRPAVVQTQADGLREQLQQARLASTPVFTLFTQLFHIDTAGCLEVVRERKALPPRLPQAGARDPPVHLLQASSSAQSTPGHLFPNVPAQEASKSASHKGSRRLASSRVERTLPQASLLASTGPRPKPKTVSELLQEKRLQEARAREATRGPVVLPSQLLVSSSVILQPPLPHTPHGRPAPGPTVLNVPLSGPGAPAAAKPGTSGSWQEAGTSAKDKRLSTMQALPLAPVFSEAEGTAPAASQAPALGPGQISVSCPESGLGQSQAPAASRKQGLPEAPPFLPAAPSPTPLPVQPLSLTHIGGPHVATSVPLPVTWVLTAQGLLPVPVPAVVSLPRPAGTPGPAGLLATLLPPLTETRAAQGPRAPALSSSWQPPANMNREPEPSCRTDTPAPPTHALSQSPAEADGSVAFVPGEAQVAREIPEPRTSSHADPPEAEPPWSGRLPAFGGVIPATEPRGTPGSPSGTQEPRGPLGLEKLPLRQPGPEKGALDLEKPPLPQPGPEKGALDLGLLSQEGEAATQQWLGGQRGVRVPLLGSRLPYQPPALCSLRALSGLLLHKKALEHKATSLVVGGEAERPAGALQASLGLVRGQLQDNPAYLLLRARFLAAFTLPALLATLAPQGVRTTLSVPSRVGSESEDEDLLSELELADRDGQPGCTTATCPIQGAPDSGKCSASSCLDTSNDPDDLDVLRTRHARHTRKRRRLV

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Trichoplusia ni

Entity 24 Entity 24 polymer

Description description	snRNA-activating protein complex subunit 5
Molecular weight formula_weight	11343.4 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	d

MLSRLQELRKEEETLLRLKAALHDQLNRLKVEELALQSMISSRRGDEMLSSHTVPEQSHDMLVHVDNEASINQTTLELSTKSHVTEEEEEEEEEESDS

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Trichoplusia ni

Entity 25 Entity 25 non-polymer

Description description	ZINC ION
Molecular weight formula_weight	65.4 kDa
Source method src_method	syn
Copy count entity_count	11

Entity 26 Entity 26 non-polymer

Description description	MAGNESIUM ION
Molecular weight formula_weight	24.3 kDa
Source method src_method	syn
Copy count entity_count	1

▶

8. Citations (2)

▶

Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	—

Space group space_group	P 1
Space-group number int_tables_number	1
Crystal system crystal_system	—

Resolution resolution	3.00 Å
Resolution测定方法 resolution_method	—
颗粒数 num_particles	137246

fit	/app/data/saxs_computation/zx/7zx8/7zx8.fit
pddf	/app/data/pr_computation/zx/7zx8/7zx8.pr.out
profile	/app/data/saxs_computation/zx/7zx8/7zx8.dat

Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (OC)

1. Protein Identity and Related Structures Protein Identity & Related Structures

DNA-directed RNA polymerase subunit

State in the Current Structure

Other States of the Same Protein in the Database

DNA-directed RNA polymerase subunit beta

State in the Current Structure

Other States of the Same Protein in the Database

DNA-directed RNA polymerase II subunit RPB3

State in the Current Structure

Other States of the Same Protein in the Database

RNA polymerase II subunit D

State in the Current Structure

Other States of the Same Protein in the Database

DNA-directed RNA polymerase II subunit E

State in the Current Structure

Other States of the Same Protein in the Database

DNA-directed RNA polymerase II subunit F

State in the Current Structure

Other States of the Same Protein in the Database

DNA-directed RNA polymerase II subunit RPB7

State in the Current Structure

Other States of the Same Protein in the Database

DNA-directed RNA polymerases I, II, and III subunit RPABC3

State in the Current Structure

Other States of the Same Protein in the Database

DNA-directed RNA polymerase II subunit RPB9

State in the Current Structure

Other States of the Same Protein in the Database

DNA-directed RNA polymerases I, II, and III subunit RPABC5

State in the Current Structure

Other States of the Same Protein in the Database

RNA polymerase II subunit J

State in the Current Structure

Other States of the Same Protein in the Database

RNA polymerase II subunit K

State in the Current Structure

Other States of the Same Protein in the Database

Transcription initiation factor IIB

State in the Current Structure

Other States of the Same Protein in the Database

TATA-box-binding protein

State in the Current Structure

Other States of the Same Protein in the Database

General transcription factor IIF subunit 1

State in the Current Structure

Other States of the Same Protein in the Database

General transcription factor IIF subunit 2

State in the Current Structure

Other States of the Same Protein in the Database

Transcription initiation factor IIA subunit 1

State in the Current Structure

Other States of the Same Protein in the Database

Transcription initiation factor IIA subunit 2

State in the Current Structure

Other States of the Same Protein in the Database

snRNA-activating protein complex subunit 1

State in the Current Structure

Other States of the Same Protein in the Database

snRNA-activating protein complex subunit 3

State in the Current Structure

Other States of the Same Protein in the Database

snRNA-activating protein complex subunit 4

State in the Current Structure

Other States of the Same Protein in the Database

snRNA-activating protein complex subunit 5

State in the Current Structure

Other States of the Same Protein in the Database

SAXS scattering curve SAXS Profile

P(r) Distance Distribution P(r) Distribution

2. Structure Basics 2. Structure Basics

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

5. Crystallography and Experiment 5. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

冷冻电镜 EM 3D

6. Entities and Polymers Entities & Polymers (26)

Entity 1 Entity 1 polymer

Polymer Polymer