SAXSdb — 8r8r

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

Cleavage and polyadenylation specificity factor subunit 1

Homo sapiens

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–RNA Heteromer Protein × 4 RNA 1 PDB declaration: pentameric（5） Consistent with all polymer counts	Chain A； UniProt 1–1443	Not recorded	;pre-mRNA 3' end processing protein WDR33 ; × 1 （Q9C0J8） Cleavage and polyadenylation specificity factor subunit 4 × 1 （O95639） cDNA FLJ50397, highly similar to Poly(A) polymerase alpha × 1 （B4DZL2） ;RNA (5'-R(PAPAPUPAPAPA)-3') ; × 1 ZN ZINC ION × 3	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.9 cryo-EM vitrification conditions：Cryogen ETHANE-PROPANE	Resolution 2.79 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 8R8R	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
6BLY Cryo-EM structure of human CPSF-160-WDR33 complex at 3.36A resolution Deposited 2017-11-12	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 1–1443（1443 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9；25 mM Tris-HCl, pH 7.9, 380 mM NaCl, 5mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.36 Å
6BM0 Cryo-EM structure of human CPSF-160-WDR33 complex at 3.8 A resolution Deposited 2017-11-12	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 1–1443（1443 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9；25 mM Tris-HCl, pH 7.9, 300 mM NaCl, 5 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
6DNH Cryo-EM structure of human CPSF-160-WDR33-CPSF-30-PAS RNA complex at 3.4 A resolution Deposited 2018-06-06	Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–RNA Heteromer；Protein × 3 PDB declaration: tetrameric	Chain A 1–1443（1443 aa）	Not recorded	ZN ZINC ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9；25 mM Tris-HCl, pH 7.9, 380 mM NaCl, 5 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
6F9N CRYSTAL STRUCTURE OF THE HUMAN CPSF160-WDR33 COMPLEX Deposited 2017-12-14	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 1–1443（1443 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；11% w/v PEG3400 37.5 mM Ammonium Formate 112.5 mM Magnesium Formate	Resolution 2.50 Å R-free 0.263
6FUW Cryo-EM structure of the human CPSF160-WDR33-CPSF30 complex bound to the PAS AAUAAA motif at 3.1 Angstrom resolution Deposited 2018-02-28	Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–RNA Heteromer；Protein × 3 PDB declaration: tetrameric	Chain A 1–1443（1443 aa）	Not recorded	ZN ZINC ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE；15 seconds wait time prior to blotting	Resolution 3.07 Å
6URG Cryo-EM structure of human CPSF160-WDR33-CPSF30-CPSF100 PIM complex Deposited 2019-10-23	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain A 1–1443（1443 aa）	Not recorded	ZN ZINC ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8；25 mM Tris-HCl, pH 8.0, 150 mM NaCl, 5 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
6URO Cryo-EM structure of human CPSF160-WDR33-CPSF30-PAS RNA-CstF77 complex Deposited 2019-10-23	Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–RNA Heteromer；Protein × 5 PDB declaration: hexameric	Chain A 1–1443（1443 aa）	Not recorded	ZN ZINC ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 8；25 mM Tris-HCl, pH 8.0, 150 mM NaCl, 5 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8E3I CRYO-EM STRUCTURE OF the human MPSF IN COMPLEX WITH THE AUUAAA poly(A) signal Deposited 2022-08-17	Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–RNA Heteromer；Protein × 3 PDB declaration: tetrameric	Chain A 1–1443（1443 aa）	Not recorded	ZN ZINC ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 8；25 mM Tris (pH 8.0), 150 mM NaCl, and 5 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.53 Å
8E3Q CRYO-EM STRUCTURE OF the human MPSF Deposited 2022-08-17	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 1–1443（1443 aa）	Not recorded	ZN ZINC ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8；25 mM Tris (pH 8.0), 150 mM NaCl, and 5 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.68 Å
9OXE CRYO-EM STRUCTURE OF the human mPSF IN COMPLEX WITH THE AGUAAA poly(A) signal Deposited 2025-06-03	Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–RNA Heteromer；Protein × 3 PDB declaration: tetrameric	Chain A 1–1443（1443 aa）	Not recorded	ZN ZINC ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.53 Å
9OXS CRYO-EM STRUCTURE OF the human mPSF IN COMPLEX WITH THE AAUAAU poly(A) signal Deposited 2025-06-04	Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–RNA Heteromer；Protein × 3 PDB declaration: tetrameric	Chain A 1–1443（1443 aa）	Not recorded	ZN ZINC ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.07 Å
9T3X cryo-EM structure of CPSF160-WDR33-ZC3H18 Deposited 2025-10-30	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Insufficient information Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 1–1443（1443 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；20mM HEPES pH 7.5, 150mM NaCl, 5mM MgCl2 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 2.10 Å

12 other PDB entries and 12 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	CPSF1_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–1443； UniProt 1–1443

;pre-mRNA 3' end processing protein WDR33 ;

Homo sapiens

UniProt Q9C0J8

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–RNA Heteromer Protein × 4 RNA 1 PDB declaration: pentameric（5） Consistent with all polymer counts	Chain B； UniProt 1–413	Not recorded	Cleavage and polyadenylation specificity factor subunit 1 × 1 （Q10570） Cleavage and polyadenylation specificity factor subunit 4 × 1 （O95639） cDNA FLJ50397, highly similar to Poly(A) polymerase alpha × 1 （B4DZL2） ;RNA (5'-R(PAPAPUPAPAPA)-3') ; × 1 ZN ZINC ION × 3	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.9 cryo-EM vitrification conditions：Cryogen ETHANE-PROPANE	Resolution 2.79 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 8R8R	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
6BLY Cryo-EM structure of human CPSF-160-WDR33 complex at 3.36A resolution Deposited 2017-11-12	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain B 1–572（572 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9；25 mM Tris-HCl, pH 7.9, 380 mM NaCl, 5mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.36 Å
6BM0 Cryo-EM structure of human CPSF-160-WDR33 complex at 3.8 A resolution Deposited 2017-11-12	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain B 1–572（572 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9；25 mM Tris-HCl, pH 7.9, 300 mM NaCl, 5 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
6DNH Cryo-EM structure of human CPSF-160-WDR33-CPSF-30-PAS RNA complex at 3.4 A resolution Deposited 2018-06-06	Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–RNA Heteromer；Protein × 3 PDB declaration: tetrameric	Chain B 1–572（572 aa）	Not recorded	ZN ZINC ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9；25 mM Tris-HCl, pH 7.9, 380 mM NaCl, 5 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
6F9N CRYSTAL STRUCTURE OF THE HUMAN CPSF160-WDR33 COMPLEX Deposited 2017-12-14	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 35–410（376 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；11% w/v PEG3400 37.5 mM Ammonium Formate 112.5 mM Magnesium Formate	Resolution 2.50 Å R-free 0.263
6FUW Cryo-EM structure of the human CPSF160-WDR33-CPSF30 complex bound to the PAS AAUAAA motif at 3.1 Angstrom resolution Deposited 2018-02-28	Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–RNA Heteromer；Protein × 3 PDB declaration: tetrameric	Chain B 1–410（410 aa）	Not recorded	ZN ZINC ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE；15 seconds wait time prior to blotting	Resolution 3.07 Å
6URG Cryo-EM structure of human CPSF160-WDR33-CPSF30-CPSF100 PIM complex Deposited 2019-10-23	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain B 1–572（572 aa）	Not recorded	ZN ZINC ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8；25 mM Tris-HCl, pH 8.0, 150 mM NaCl, 5 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
6URO Cryo-EM structure of human CPSF160-WDR33-CPSF30-PAS RNA-CstF77 complex Deposited 2019-10-23	Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–RNA Heteromer；Protein × 5 PDB declaration: hexameric	Chain B 1–572（572 aa）	Not recorded	ZN ZINC ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 8；25 mM Tris-HCl, pH 8.0, 150 mM NaCl, 5 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8E3I CRYO-EM STRUCTURE OF the human MPSF IN COMPLEX WITH THE AUUAAA poly(A) signal Deposited 2022-08-17	Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–RNA Heteromer；Protein × 3 PDB declaration: tetrameric	Chain B 1–572（572 aa）	Not recorded	ZN ZINC ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 8；25 mM Tris (pH 8.0), 150 mM NaCl, and 5 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.53 Å
8E3Q CRYO-EM STRUCTURE OF the human MPSF Deposited 2022-08-17	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain B 1–572（572 aa）	Not recorded	ZN ZINC ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8；25 mM Tris (pH 8.0), 150 mM NaCl, and 5 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.68 Å
9OXE CRYO-EM STRUCTURE OF the human mPSF IN COMPLEX WITH THE AGUAAA poly(A) signal Deposited 2025-06-03	Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–RNA Heteromer；Protein × 3 PDB declaration: tetrameric	Chain B 2–572（571 aa）	Not recorded	ZN ZINC ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.53 Å
9OXS CRYO-EM STRUCTURE OF the human mPSF IN COMPLEX WITH THE AAUAAU poly(A) signal Deposited 2025-06-04	Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–RNA Heteromer；Protein × 3 PDB declaration: tetrameric	Chain B 2–572（571 aa）	Not recorded	ZN ZINC ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.07 Å
9T3X cryo-EM structure of CPSF160-WDR33-ZC3H18 Deposited 2025-10-30	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Insufficient information Heteromer；Protein × 3 PDB declaration: trimeric	Chain B 1–413（413 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；20mM HEPES pH 7.5, 150mM NaCl, 5mM MgCl2 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 2.10 Å

12 other PDB entries and 12 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	WDR33_HUMAN
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 1–413； UniProt 1–413

Cleavage and polyadenylation specificity factor subunit 4

Homo sapiens

UniProt O95639

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–RNA Heteromer Protein × 4 RNA 1 PDB declaration: pentameric（5） Consistent with all polymer counts	Chain C； UniProt 2–244	Not recorded	Cleavage and polyadenylation specificity factor subunit 1 × 1 （Q10570） ;pre-mRNA 3' end processing protein WDR33 ; × 1 （Q9C0J8） cDNA FLJ50397, highly similar to Poly(A) polymerase alpha × 1 （B4DZL2） ;RNA (5'-R(PAPAPUPAPAPA)-3') ; × 1 ZN ZINC ION × 3	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.9 cryo-EM vitrification conditions：Cryogen ETHANE-PROPANE	Resolution 2.79 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 8R8R	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
2D9N Solution structure of CCCH type zinc-finger domain 2 in Cleavage and polyadenylation specificity factor Deposited 2005-12-12	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 61–126（66 aa） Fragment：CCCH-type zinc finger motif	Not recorded	ZN ZINC ION × 2	SOLUTION NMR NMR measurement conditions pH 7；298 K；Ionic strength (raw mmCIF value) 100mM；Pressure ambient NMR sample composition 20mM d-Tris-HCl(pH7.0), 100mM NaCl, 1mM d-DTT, 0.02% NaN3, 50uM ZnCl2+1mM IDA, 90% H2O, 10% D2O \| 90% H2O/10% D2O	Resolution not provided
2RHK Crystal structure of influenza A NS1A protein in complex with F2F3 fragment of human cellular factor CPSF30, Northeast Structural Genomics Targets OR8C and HR6309A Deposited 2007-10-09	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 × 4 PDB declaration: tetrameric	Chain C 61–121（61 aa） Fragment：F2F3 Zinc-binding domains (UNP residues 61-121) Chain D 61–121（61 aa） Fragment：F2F3 Zinc-binding domains (UNP residues 61-121)	Mutation：P94S Mutation：P94S	NO3 NITRATE ION × 5 ZN ZINC ION × 4 TRS 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL × 1	X-RAY DIFFRACTION X-ray crystallization conditions pH 5.5；293 K；0.5 M KNO3, 10% sucroes, 0.1M sodium acitate, pH 5.5, EVAPORATION, temperature 293K, pH 5.50	Resolution 1.95 Å R-free 0.234
2RHK Crystal structure of influenza A NS1A protein in complex with F2F3 fragment of human cellular factor CPSF30, Northeast Structural Genomics Targets OR8C and HR6309A Deposited 2007-10-09	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain C 61–121（61 aa） Fragment：F2F3 Zinc-binding domains (UNP residues 61-121) Chain D 61–121（61 aa） Fragment：F2F3 Zinc-binding domains (UNP residues 61-121)	Mutation：P94S Mutation：P94S	NO3 NITRATE ION × 9 ZN ZINC ION × 6 TRS 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL × 2	X-RAY DIFFRACTION X-ray crystallization conditions pH 5.5；293 K；0.5 M KNO3, 10% sucroes, 0.1M sodium acitate, pH 5.5, EVAPORATION, temperature 293K, pH 5.50	Resolution 1.95 Å R-free 0.234
2RHK Crystal structure of influenza A NS1A protein in complex with F2F3 fragment of human cellular factor CPSF30, Northeast Structural Genomics Targets OR8C and HR6309A Deposited 2007-10-09	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 3 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain C 61–121（61 aa） Fragment：F2F3 Zinc-binding domains (UNP residues 61-121) Chain D 61–121（61 aa） Fragment：F2F3 Zinc-binding domains (UNP residues 61-121)	Mutation：P94S Mutation：P94S	NO3 NITRATE ION × 5 ZN ZINC ION × 4 TRS 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL × 1	X-RAY DIFFRACTION X-ray crystallization conditions pH 5.5；293 K；0.5 M KNO3, 10% sucroes, 0.1M sodium acitate, pH 5.5, EVAPORATION, temperature 293K, pH 5.50	Resolution 1.95 Å R-free 0.234
2RHK Crystal structure of influenza A NS1A protein in complex with F2F3 fragment of human cellular factor CPSF30, Northeast Structural Genomics Targets OR8C and HR6309A Deposited 2007-10-09	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 4 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain D 61–121（61 aa） Fragment：F2F3 Zinc-binding domains (UNP residues 61-121)	Mutation：P94S	NO3 NITRATE ION × 4 ZN ZINC ION × 2 TRS 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL × 1	X-RAY DIFFRACTION X-ray crystallization conditions pH 5.5；293 K；0.5 M KNO3, 10% sucroes, 0.1M sodium acitate, pH 5.5, EVAPORATION, temperature 293K, pH 5.50	Resolution 1.95 Å R-free 0.234
6DNH Cryo-EM structure of human CPSF-160-WDR33-CPSF-30-PAS RNA complex at 3.4 A resolution Deposited 2018-06-06	Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–RNA Heteromer；Protein × 3 PDB declaration: tetrameric	Chain C 1–244（244 aa）	Not recorded	ZN ZINC ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9；25 mM Tris-HCl, pH 7.9, 380 mM NaCl, 5 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
6FUW Cryo-EM structure of the human CPSF160-WDR33-CPSF30 complex bound to the PAS AAUAAA motif at 3.1 Angstrom resolution Deposited 2018-02-28	Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–RNA Heteromer；Protein × 3 PDB declaration: tetrameric	Chain C 1–178（178 aa）	Not recorded	ZN ZINC ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE；15 seconds wait time prior to blotting	Resolution 3.07 Å
6URG Cryo-EM structure of human CPSF160-WDR33-CPSF30-CPSF100 PIM complex Deposited 2019-10-23	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain C 1–244（244 aa）	Not recorded	ZN ZINC ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8；25 mM Tris-HCl, pH 8.0, 150 mM NaCl, 5 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
6URO Cryo-EM structure of human CPSF160-WDR33-CPSF30-PAS RNA-CstF77 complex Deposited 2019-10-23	Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–RNA Heteromer；Protein × 5 PDB declaration: hexameric	Chain C 1–244（244 aa）	Not recorded	ZN ZINC ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 8；25 mM Tris-HCl, pH 8.0, 150 mM NaCl, 5 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
7ZYH Crystal structure of human CPSF30 in complex with hFip1 Deposited 2022-05-24	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 118–178（61 aa）	Not recorded	ZN ZINC ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；292.15 K；1.626 M (NH4)SO4, 0.1 M Bis-Tris pH 6.5	Resolution 2.20 Å R-free 0.264
7ZYH Crystal structure of human CPSF30 in complex with hFip1 Deposited 2022-05-24	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain D 118–178（61 aa）	Not recorded	ZN ZINC ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；292.15 K；1.626 M (NH4)SO4, 0.1 M Bis-Tris pH 6.5	Resolution 2.20 Å R-free 0.264
7ZYH Crystal structure of human CPSF30 in complex with hFip1 Deposited 2022-05-24	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 3 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain G 118–178（61 aa）	Not recorded	ZN ZINC ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；292.15 K；1.626 M (NH4)SO4, 0.1 M Bis-Tris pH 6.5	Resolution 2.20 Å R-free 0.264
7ZYH Crystal structure of human CPSF30 in complex with hFip1 Deposited 2022-05-24	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 4 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain J 118–178（61 aa）	Not recorded	ZN ZINC ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；292.15 K；1.626 M (NH4)SO4, 0.1 M Bis-Tris pH 6.5	Resolution 2.20 Å R-free 0.264
8E3I CRYO-EM STRUCTURE OF the human MPSF IN COMPLEX WITH THE AUUAAA poly(A) signal Deposited 2022-08-17	Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–RNA Heteromer；Protein × 3 PDB declaration: tetrameric	Chain C 1–244（244 aa）	Not recorded	ZN ZINC ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 8；25 mM Tris (pH 8.0), 150 mM NaCl, and 5 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.53 Å
8E3Q CRYO-EM STRUCTURE OF the human MPSF Deposited 2022-08-17	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain C 1–244（244 aa）	Not recorded	ZN ZINC ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8；25 mM Tris (pH 8.0), 150 mM NaCl, and 5 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.68 Å
9OXE CRYO-EM STRUCTURE OF the human mPSF IN COMPLEX WITH THE AGUAAA poly(A) signal Deposited 2025-06-03	Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–RNA Heteromer；Protein × 3 PDB declaration: tetrameric	Chain C 1–244（244 aa）	Not recorded	ZN ZINC ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.53 Å
9OXS CRYO-EM STRUCTURE OF the human mPSF IN COMPLEX WITH THE AAUAAU poly(A) signal Deposited 2025-06-04	Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–RNA Heteromer；Protein × 3 PDB declaration: tetrameric	Chain C 1–244（244 aa）	Not recorded	ZN ZINC ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.07 Å

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

View Construct and Data Evidence

UniProt name	CPSF4_HUMAN
Isoform	O95639-2
PDB entities	3
Chains and sequence ranges	Author chain C； PDBConstruct 43–285； UniProt 2–244

cDNA FLJ50397, highly similar to Poly(A) polymerase alpha

OrganismNot specified

UniProt B4DZL2

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–RNA Heteromer Protein × 4 RNA 1 PDB declaration: pentameric（5） Consistent with all polymer counts	Chain D； UniProt 285–310	Not recorded	Cleavage and polyadenylation specificity factor subunit 1 × 1 （Q10570） ;pre-mRNA 3' end processing protein WDR33 ; × 1 （Q9C0J8） Cleavage and polyadenylation specificity factor subunit 4 × 1 （O95639） ;RNA (5'-R(PAPAPUPAPAPA)-3') ; × 1 ZN ZINC ION × 3	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.9 cryo-EM vitrification conditions：Cryogen ETHANE-PROPANE	Resolution 2.79 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.

No other PDB entry for the same UniProt protein was found.

View Construct and Data Evidence

UniProt name	B4DZL2_HUMAN
Isoform	—
PDB entities	4
Chains and sequence ranges	Author chain D； PDBConstruct 1–26； UniProt 285–310

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.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	8r8r
Deposition date deposition_date	2023-11-29
Structure title title	Cryo-EM structure of the human mPSF with PAPOA C-terminus peptide (PAPOAc)
Keywords keywords	3-end processing, polyadenylation, PAPOA, pre-mRNA, cleavage and polyadenylation, RNA BINDING PROTEIN; RNA BINDING PROTEIN
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	39.22 Å
Radius of gyration Rg (electron density) rg_electron	38.62 Å
Forward intensity I(0) i0	513075000.00
Molecular weight molecular_weight	186040.0 kDa
Excluded volume excluded_volume	233350 Å³
Envelope volume envelope_volume	314570 Å³
Hydration-shell volume shell_volume	66988 Å³
Envelope diameter envelope_diameter	131.0 Å
Shell Rg shell_rg	45.17 Å
Envelope Rg envelope_rg	38.30 Å
Shape Rg shape_rg	38.61 Å
Total Rg total_rg	39.05 Å
Total atoms total_atoms	13089
Residues n_residues	1689
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	133.5 Å
Rg (real space) rg_real	39.21 Å
Rg uncertainty (real space) rg_real_error	1.11 Å
I(0) (real space) i0_real	5.1310e+08
I(0) uncertainty (real space) i0_real_error	9.5900e+06
Rg (reciprocal space) rg_reciprocal	39.22 Å
I(0) (reciprocal space) i0_reciprocal	513100000.0000
Solution quality estimate total_estimate	0.8689
Solution quality rating solution_quality	GOOD a GOOD solution
P(r) peaks n_peaks	1
Primary peak position r_peak_primary	46.7 Å
Skewness Skewness skewness	0.389
Kurtosis Kurtosis kurtosis	-0.238
Angular range angular_range	— – 0.2000 Å⁻¹
Current regularization parameter α current_alpha	0.0000
Highest regularization parameter α highest_alpha	126600000.0000
Real-space data points n_real_points	41
GNOM version gnom_version	4.1.3
Quality Criteria quality_criteria	AN1: 0.000; Oscil: 0.797; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.998; Smooth: 0.903

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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (6)

Entity 1 Entity 1 polymer

Description description	Cleavage and polyadenylation specificity factor subunit 1
Molecular weight formula_weight	161074.2 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	13089

MYAVYKQAHPPTGLEFSMYCNFFNNSERNLVVAGTSQLYVYRLNRDAEALTKNDRSTEGKAHREKLELAASFSFFGNVMSMASVQLAGAKRDALLLSFKDAKLSVVEYDPGTHDLKTLSLHYFEEPELRDGFVQNVHTPRVRVDPDGRCAAMLVYGTRLVVLPFRRESLAEEHEGLVGEGQRSSFLPSYIIDVRALDEKLLNIIDLQFLHGYYEPTLLILFEPNQTWPGRVAVRQDTCSIVAISLNITQKVHPVIWSLTSLPFDCTQALAVPKPIGGVVVFAVNSLLYLNQSVPPYGVALNSLTTGTTAFPLRTQEGVRITLDCAQATFISYDKMVISLKGGEIYVLTLITDGMRSVRAFHFDKAAASVLTTSMVTMEPGYLFLGSRLGNSLLLKYTEKLQEPPASAVREAADKEEPPSKKKRVDATAGWSAAGKSVPQDEVDEIEVYGSEAQSGTQLATYSFEVCDSILNIGPCANAAVGEPAFLSEEFQNSPEPDLEIVVCSGHGKNGALSVLQKSIRPQVVTTFELPGCYDMWTVIAPVRKEEEDNPKGEGTEQEPSTTPEADDDGRRHGFLILSREDSTMILQTGQEIMELDTSGFATQGPTVFAGNIGDNRYIVQVSPLGIRLLEGVNQLHFIPVDLGAPIVQCAVADPYVVIMSAEGHVTMFLLKSDSYGGRHHRLALHKPPLHHQSKVITLCLYRDLSGMFTTESRLGGARDELGGRSGPEAEGLGSETSPTVDDEEEMLYGDSGSLFSPSKEEARRSSQPPADRDPAPFRAEPTHWCLLVRENGTMEIYQLPDWRLVFLVKNFPVGQRVLVDSSFGQPTTQGEARREEATRQGELPLVKEVLLVALGSRQSRPYLLVHVDQELLIYEAFPHDSQLGQGNLKVRFKKVPHNINFREKKPKPSKKKAEGGGAEEGAGARGRVARFRYFEDIYGYSGVFICGPSPHWLLVTGRGALRLHPMAIDGPVDSFAPFHNVNCPRGFLYFNRQGELRISVLPAYLSYDAPWPVRKIPLRCTAHYVAYHVESKVYAVATSTNTPCARIPRMTGEEKEFETIERDERYIHPQQEAFSIQLISPVSWEAIPNARIELQEWEHVTCMKTVSLRSEETVSGLKGYVAAGTCLMQGEEVTCRGRILIMDVIEVVPEPGQPLTKNKFKVLYEKEQKGPVTALCHCNGHLVSAIGQKIFLWSLRASELTGMAFIDTQLYIHQMISVKNFILAADVMKSISLLRYQEESKTLSLVSRDAKPLEVYSVDFMVDNAQLGFLVSDRDRNLMVYMYLPEAKESFGGMRLLRRADFHVGAHVNTFWRTPCRGATEGLSKKSVVWENKHITWFATLDGGIGLLLPMQEKTYRRLLMLQNALTTMLPHHAGLNPRAFRMLHVDRRTLQNAVRNVLDGELLNRYLYLSTMERSELAKKIGTTPDIILDDLLETDRVTAHF

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	Homo sapiens

Entity 2 Entity 2 polymer

Description description	;pre-mRNA 3' end processing protein WDR33 ;
Molecular weight formula_weight	47580.1 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B

MATEIGSPPRFFHMPRFQHQAPRQLFYKRPDFAQQQAMQQLTFDGKRMRKAVNRKTIDYNPSVIKYLENRIWQRDQRDMRAIQPDAGYYNDLVPPIGMLNNPMNAVTTKFVRTSTNKVKCPVFVVRWTPEGRRLVTGASSGEFTLWNGLTFNFETILQAHDSPVRAMTWSHNDMWMLTADHGGYVKYWQSNMNNVKMFQAHKEAIREASFSPTDNKFATCSDDGTVRIWDFLRCHEERILRGHGADVKCVDWHPTKGLVVSGSKDSQQPIKFWDPKTGQSLATLHAHKNTVMEVKLNLNGNWLLTASRDHLCKLFDIRNLKEELQVFRGHKKEATAVAWHPVHEGLFASGGSDGSLLFWHVGVEKEVGGMEMAHEGMIWSLAWHPLGHILCSGSNDHTSKFWTRNRPGDKMRD

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	Homo sapiens

Entity 3 Entity 3 polymer

Description description	Cleavage and polyadenylation specificity factor subunit 4
Molecular weight formula_weight	31733.4 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	C

MSAWSHPQFEKGGGSGGGSGGSAWSHPQFEKTAGLEVLFQGPQEIIASVDHIKFDLEIAVEQQLGAQPLPFPGMDKSGAAVCEFFLKAACGKGGMCPFRHISGEKTVVCKHWLRGLCKKGDQCEFLHEYDMTKMPECYFYSKFGECSNKECPFLHIDPESKIKDCPWYDRGFCKHGPLCRHRHTRRVICVNYLVGFCPEGPSCKFMHPRFELPMGTTEQPPLPQQTQPPAKQRTPQVIGVMQSQNSSAGNRGPRPLEQVTCYKCGEKGHYANRCTKGHLAFLSGQ

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	Homo sapiens

Entity 4 Entity 4 polymer

Description description	cDNA FLJ50397, highly similar to Poly(A) polymerase alpha
Molecular weight formula_weight	2872.4 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	D

DLSDIPALPANPIPVIKNSIKLRLNR

Entity 5 Entity 5 polymer

Description description	;RNA (5'-R(PAPAPUPAPAPA)-3') ;
Molecular weight formula_weight	1907.2 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polyribonucleotide
Chain IDs strand_id	E

AAUAAA

来源 Source

来源生物 organism	Homo sapiens
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Homo sapiens

Entity 6 Entity 6 non-polymer

Description description	ZINC ION
Molecular weight formula_weight	65.4 kDa
Source method src_method	syn
Copy count entity_count	3

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8. Citations (1)

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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	2.79 Å
Resolution测定方法 resolution_method	—
颗粒数 num_particles	186241

fit	/app/data/saxs_computation/r8/8r8r/8r8r.fit
pddf	/app/data/pr_computation/r8/8r8r/8r8r.pr.out
profile	/app/data/saxs_computation/r8/8r8r/8r8r.dat

Cryo-EM structure of the human mPSF with PAPOA C-terminus peptide (PAPOAc)

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

Cleavage and polyadenylation specificity factor subunit 1

State in the Current Structure

Other States of the Same Protein in the Database

;pre-mRNA 3' end processing protein WDR33 ;

State in the Current Structure

Other States of the Same Protein in the Database

Cleavage and polyadenylation specificity factor subunit 4

State in the Current Structure

Other States of the Same Protein in the Database

cDNA FLJ50397, highly similar to Poly(A) polymerase alpha

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 (6)

Entity 1 Entity 1 polymer

Polymer Polymer

来源 Source

Entity 2 Entity 2 polymer

Polymer Polymer

来源 Source

Entity 3 Entity 3 polymer

Polymer Polymer

来源 Source

Entity 4 Entity 4 polymer

Polymer Polymer

Entity 5 Entity 5 polymer

Polymer Polymer

来源 Source

Entity 6 Entity 6 non-polymer

8. Citations (1)

9. Files and Curves (10)

Files (7)

Curves (3)