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6eec

Mycobacterium tuberculosis RNAP promoter unwinding intermediate complex with RbpA/CarD and AP3 promoter captured by Corallopyronin

Method: ELECTRON MICROSCOPY Dmax: 174.0 Å Quality: GOOD
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1. Protein Identity and Related Structures Protein Identity & Related Structures

DNA-directed RNA polymerase subunit alpha

Mycobacterium tuberculosis

UniProt A5U8D3

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 × 8 DNA 2 PDB declaration: decameric（10） Consistent with all polymer counts Chain A； UniProt 1–347 Chain B； UniProt 1–347 Not recorded DNA-directed RNA polymerase subunit beta × 1 （V9Z879） ;DNA-directed RNA polymerase subunit beta' ; × 1 （A5U053） DNA-directed RNA polymerase subunit omega × 1 （A0A0T9N9K3） RNA polymerase sigma factor SigA × 1 （P9WGI0） RNA polymerase-binding protein RbpA × 1 （P9WHJ4） DNA (65-MER) × 1 DNA (63-MER) × 1 RNA polymerase-binding transcription factor CarD × 1 （P9WJG2） C0L methyl [(1E,5R)-5-{(3E)-3-[(2E,4E,8R,9E,12E)-1,8-dihydroxy-2,5,9-trimethyltetradeca-2,4,9,12-tetraen-1-ylidene]-2,4-dioxo-3,4-d ihydro-2H-pyran-6-yl}hex-1-en-1-yl]carbamate × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer：pH 8 cryo-EM vitrification conditions：Cryogen ETHANE Resolution 3.55 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 6EEC Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
6EDT Mycobacterium tuberculosis RNAP open promoter complex with RbpA/CarD and AP3 promoter Deposited 2018-08-10 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain A 1–347（347 aa）
Chain B 1–347（347 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.60 Å
6EE8 Mycobacterium tuberculosis RNAP promoter unwinding intermediate complex with RbpA/CarD and AP3 promoter Deposited 2018-08-13 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain A 1–347（347 aa）
Chain B 1–347（347 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.92 Å
6M7J Mycobacterium tuberculosis RNAP with RbpA/us fork and Corallopyronin Deposited 2018-08-20 Different oligomeric state Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 7 PDB declaration: nonameric
Chain A 1–347（347 aa）
Chain B 1–347（347 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 C0L methyl [(1E,5R)-5-{(3E)-3-[(2E,4E,8R,9E,12E)-1,8-dihydroxy-2,5,9-trimethyltetradeca-2,4,9,12-tetraen-1-ylidene]-2,4-dioxo-3,4-d ihydro-2H-pyran-6-yl}hex-1-en-1-yl]carbamate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.40 Å
6TYE Crystal structure of MTB sigma L transcription initiation complex with 5 nt long RNA primer Deposited 2019-08-08 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 6 PDB declaration: nonameric
Chain A 1–347（347 aa）
Chain B 1–347（347 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；295 K；100 mM sodium citrate tribasic dihydrate, pH 5.6, 200 mM sodium acetate, and 10% PEG4000
Resolution 3.79 Å R-free 0.279
6TYF Crystal structure of MTB sigma L transcription initiation complex with 6 nt long RNA primer Deposited 2019-08-08 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 6 PDB declaration: nonameric
Chain A 1–347（347 aa）
Chain B 1–347（347 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；100 mM sodium citrate tribasic dihydrate, pH 5.6, 200 mM sodium acetate, and 10% PEG4000
Resolution 3.80 Å R-free 0.300
6TYG Crystal structure of MTB sigma L transcription initiation complex with 9 nt long RNA primer Deposited 2019-08-08 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 6 PDB declaration: nonameric
Chain A 1–347（347 aa）
Chain B 1–347（347 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；100 mM sodium citrate tribasic dihydrate, pH 5.6, 200 mM sodium acetate, and 10% PEG4000
Resolution 3.50 Å R-free 0.293
6VVX Mycobacterium tuberculosis WT RNAP transcription initiation intermediate structure with Sorangicin Deposited 2020-02-18 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain A 1–347（347 aa）
Chain B 1–347（347 aa）
Not recorded SRN SORANGICIN A × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.39 Å
6VVY Mycobacterium tuberculosis WT RNAP transcription open promoter complex with Sorangicin Deposited 2020-02-18 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain A 1–347（347 aa）
Chain B 1–347（347 aa）
Not recorded SRN SORANGICIN A × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.42 Å
6VVZ Mycobacterium tuberculosis RNAP S456L mutant transcription initiation intermediate structure with Sorangicin Deposited 2020-02-18 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain A 1–347（347 aa）
Chain B 1–347（347 aa）
Not recorded SRN SORANGICIN A × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.72 Å
6VW0 Mycobacterium tuberculosis RNAP S456L mutant open promoter complex Deposited 2020-02-18 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain A 1–347（347 aa）
Chain B 1–347（347 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.59 Å
7KIF Mycobacterium tuberculosis WT RNAP transcription open promoter complex with WhiB7 transcription factor Deposited 2020-10-23 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 9 PDB declaration: undecameric
Chain A 1–347（347 aa）
Chain B 1–347（347 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.94 Å
7KIM Mycobacterium tuberculosis WT RNAP transcription closed promoter complex with WhiB7 transcription factor Deposited 2020-10-23 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 9 PDB declaration: undecameric
Chain A 1–347（347 aa）
Chain B 1–347（347 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.38 Å
7KIN Mycobacterium tuberculosis WT RNAP transcription open promoter complex with WhiB7 promoter Deposited 2020-10-23 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain A 1–347（347 aa）
Chain B 1–347（347 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.74 Å
7RWI Mycobacterium tuberculosis RNA polymerase sigma L holoenzyme open promoter complex containing TNP-2198 Deposited 2021-08-19 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 6 PDB declaration: octameric
Chain A 1–347（347 aa）
Chain B 1–347（347 aa）
Not recorded 7US (3aM,9S,10bP,14S,15R,16S,17R,18R,19R,20S,21S,25R)-6,18,20-trihydroxy-14-methoxy-7,9,15,17,19,21,25-heptamethyl-1'-[2-(2-methyl-5-nitro-1H-imidazol-1-yl)ethyl]-5,10,26-trioxo-3,5,9,10-tetrahydrospiro[9,4-(epoxypentadecanoimino)furo[2',3':7,8]naphtho[1,2-d]imidazole-2,4'-piperidin]-16-yl acetate × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；100 mM sodium citrate tribasic dihydrate, pH 5.6, 200 mM sodium acetate, 10% PEG4000
Resolution 3.70 Å R-free 0.245
7U22 Mycobacterium tuberculosis RNA polymerase sigma A holoenzyme open promoter complex containing UMN-7 Deposited 2022-02-22 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 6 PDB declaration: octameric
Chain A 1–347（347 aa）
Chain B 1–347（347 aa）
Not recorded KYO (9S,14S,15R,16S,17R,18R,19R,20S,21S,25R)-5,6,18,20-tetrahydroxy-14-methoxy-7,9,15,17,19,21,25-heptamethyl-1'-(2-methylpropyl)-10,26-dioxo-1,3,9,10-tetrahydrospiro[9,4-(epoxypentadecanoimino)furo[2',3':7,8]naphtho[1,2-d]imidazole-2,4'-piperidin]-16-yl benzoate × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.2；296 K；20 mM Tris-HCl, pH 8.2, 200 mM potassium chloride, 20 mM magnesium chloride, 7% (m/v) PEG-3350
Resolution 3.87 Å R-free 0.278
8E74 Mycobacterium tuberculosis RNAP paused elongation complex with NusG transcription factor Deposited 2022-08-23 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 6 PDB declaration: nonameric
Chain A 1–347（347 aa）
Chain B 1–347（347 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.94 Å
8E79 Mycobacterium tuberculosis RNAP paused elongation complex with Escherichia coli NusG transcription factor Deposited 2022-08-23 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 6 PDB declaration: nonameric
Chain A 1–347（347 aa）
Chain B 1–347（347 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.71 Å
8E82 Mycobacterium tuberculosis RNAP elongation complex with NusG transcription factor Deposited 2022-08-25 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 6 PDB declaration: nonameric
Chain A 1–347（347 aa）
Chain B 1–347（347 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.03 Å
8E8M Mycobacterium tuberculosis RNAP paused elongation complex Deposited 2022-08-25 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: octameric
Chain A 1–347（347 aa）
Chain B 1–347（347 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.13 Å
8E95 Mycobacterium tuberculosis RNAP elongation complex Deposited 2022-08-26 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: octameric
Chain A 1–347（347 aa）
Chain B 1–347（347 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
9E7V Off-pathway Mycobacterium tuberculosis transcription initiation promoter complex (RNA Polymerase with Sigma-A, CarD, and RbpA) Deposited 2024-11-04 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: decameric
Chain A 1–347（347 aa）
Chain B 1–347（347 aa）
Not recorded POP PYROPHOSPHATE 2- × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
9E7Y De Novo Mycobacterium tuberculosis transcription initiation promoter complex with 7-mer RNA and disordered Beta' Lid element (RNA Polymerase with Sigma-A, CarD, and RbpA) Deposited 2024-11-04 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: undecameric
Chain A 1–347（347 aa）
Chain B 1–347（347 aa）
Not recorded POP PYROPHOSPHATE 2- × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.20 Å
9E85 De Novo Mycobacterium tuberculosis transcription initiation promoter complex with 6-mer RNA and closed Beta' clamp (RNA Polymerase with Sigma-A, CarD, and RbpA) Deposited 2024-11-05 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: 11-meric
Chain A 1–347（347 aa）
Chain B 1–347（347 aa）
Not recorded POP PYROPHOSPHATE 2- × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
9E86 De Novo Mycobacterium tuberculosis transcription initiation promoter complex with 5-mer RNA and open Beta' clamp (RNA Polymerase with Sigma-A, CarD, and RbpA) Deposited 2024-11-05 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: 11-meric
Chain A 1–347（347 aa）
Chain B 1–347（347 aa）
Not recorded POP PYROPHOSPHATE 2- × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
9E87 De Novo Mycobacterium tuberculosis transcription initiation pre-RPO promoter complex with open Beta' clamp (RNA Polymerase with Sigma-A, CarD, and RbpA) Deposited 2024-11-05 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: decameric
Chain A 1–347（347 aa）
Chain B 1–347（347 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.60 Å
9E88 De novo backtracked transcription elongation complex of Mycobacterium tuberculosis RNA polymerase on a linear DNA fragment (TEC-Backtracked) Deposited 2024-11-05 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Insufficient information Heteromer；Protein × 6 PDB declaration: nonameric
Chain A 1–347（347 aa）
Chain B 1–347（347 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å

26 other PDB entries and 26 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RPOA_MYCTA
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–347； UniProt 1–347 Author chain B； PDBConstruct 1–347； UniProt 1–347

DNA-directed RNA polymerase subunit beta

Mycobacterium tuberculosis

UniProt V9Z879

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 × 8 DNA 2 PDB declaration: decameric（10） Consistent with all polymer counts Chain C； UniProt 1–1172 Not recorded DNA-directed RNA polymerase subunit alpha × 2 （A5U8D3） ;DNA-directed RNA polymerase subunit beta' ; × 1 （A5U053） DNA-directed RNA polymerase subunit omega × 1 （A0A0T9N9K3） RNA polymerase sigma factor SigA × 1 （P9WGI0） RNA polymerase-binding protein RbpA × 1 （P9WHJ4） DNA (65-MER) × 1 DNA (63-MER) × 1 RNA polymerase-binding transcription factor CarD × 1 （P9WJG2） C0L methyl [(1E,5R)-5-{(3E)-3-[(2E,4E,8R,9E,12E)-1,8-dihydroxy-2,5,9-trimethyltetradeca-2,4,9,12-tetraen-1-ylidene]-2,4-dioxo-3,4-d ihydro-2H-pyran-6-yl}hex-1-en-1-yl]carbamate × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer：pH 8 cryo-EM vitrification conditions：Cryogen ETHANE Resolution 3.55 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 6EEC Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
6BZO Mtb RNAP Holo/RbpA/Fidaxomicin/upstream fork DNA Deposited 2017-12-25 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 7 PDB declaration: nonameric
Chain C 1–1172（1172 aa）
Not recorded FI8 Fidaxomicin × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.38 Å
6C04 Mtb RNAP Holo/RbpA/double fork DNA -closed clamp Deposited 2017-12-27 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 7 PDB declaration: undecameric
Chain C 1–1172（1172 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.27 Å
6C05 Mycobacterium tuberculosis RNAP Holo/RbpA in relaxed state Deposited 2017-12-27 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain C 1–1172（1172 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 5.15 Å
6C06 Mycobacterium tuberculosis RNAP Holo/RbpA/Fidaxomicin Deposited 2017-12-27 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain C 1–1172（1172 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 FI8 Fidaxomicin × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 5.15 Å
6EDT Mycobacterium tuberculosis RNAP open promoter complex with RbpA/CarD and AP3 promoter Deposited 2018-08-10 Different construct Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain C 1–1134（1134 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.60 Å
6EE8 Mycobacterium tuberculosis RNAP promoter unwinding intermediate complex with RbpA/CarD and AP3 promoter Deposited 2018-08-13 Different construct Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain C 1–1134（1134 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.92 Å
6M7J Mycobacterium tuberculosis RNAP with RbpA/us fork and Corallopyronin Deposited 2018-08-20 Different oligomeric state Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 7 PDB declaration: nonameric
Chain C 1–1172（1172 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 C0L methyl [(1E,5R)-5-{(3E)-3-[(2E,4E,8R,9E,12E)-1,8-dihydroxy-2,5,9-trimethyltetradeca-2,4,9,12-tetraen-1-ylidene]-2,4-dioxo-3,4-d ihydro-2H-pyran-6-yl}hex-1-en-1-yl]carbamate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.40 Å
6VVX Mycobacterium tuberculosis WT RNAP transcription initiation intermediate structure with Sorangicin Deposited 2020-02-18 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain C 1–1172（1172 aa）
Not recorded SRN SORANGICIN A × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.39 Å
6VVY Mycobacterium tuberculosis WT RNAP transcription open promoter complex with Sorangicin Deposited 2020-02-18 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain C 1–1172（1172 aa）
Not recorded SRN SORANGICIN A × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.42 Å
6VVZ Mycobacterium tuberculosis RNAP S456L mutant transcription initiation intermediate structure with Sorangicin Deposited 2020-02-18 Different mutation/modification Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain C 1–1172（1172 aa）
Mutation：S456L SRN SORANGICIN A × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.72 Å
6VW0 Mycobacterium tuberculosis RNAP S456L mutant open promoter complex Deposited 2020-02-18 Different mutation/modification Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain C 1–1172（1172 aa）
Mutation：S456L ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.59 Å

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

View Construct and Data Evidence
UniProt name V9Z879_MYCTX
Isoform —
PDB entities 2
Chains and sequence ranges Author chain C； PDBConstruct 1–1172； UniProt 1–1172

;DNA-directed RNA polymerase subunit beta' ;

Mycobacterium tuberculosis

UniProt A5U053

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 × 8 DNA 2 PDB declaration: decameric（10） Consistent with all polymer counts Chain D； UniProt 1–1316 Not recorded DNA-directed RNA polymerase subunit alpha × 2 （A5U8D3） DNA-directed RNA polymerase subunit beta × 1 （V9Z879） DNA-directed RNA polymerase subunit omega × 1 （A0A0T9N9K3） RNA polymerase sigma factor SigA × 1 （P9WGI0） RNA polymerase-binding protein RbpA × 1 （P9WHJ4） DNA (65-MER) × 1 DNA (63-MER) × 1 RNA polymerase-binding transcription factor CarD × 1 （P9WJG2） C0L methyl [(1E,5R)-5-{(3E)-3-[(2E,4E,8R,9E,12E)-1,8-dihydroxy-2,5,9-trimethyltetradeca-2,4,9,12-tetraen-1-ylidene]-2,4-dioxo-3,4-d ihydro-2H-pyran-6-yl}hex-1-en-1-yl]carbamate × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer：pH 8 cryo-EM vitrification conditions：Cryogen ETHANE Resolution 3.55 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 6EEC Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
6EDT Mycobacterium tuberculosis RNAP open promoter complex with RbpA/CarD and AP3 promoter Deposited 2018-08-10 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain D 1–1316（1316 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.60 Å
6EE8 Mycobacterium tuberculosis RNAP promoter unwinding intermediate complex with RbpA/CarD and AP3 promoter Deposited 2018-08-13 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain D 1–1316（1316 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.92 Å
6M7J Mycobacterium tuberculosis RNAP with RbpA/us fork and Corallopyronin Deposited 2018-08-20 Different oligomeric state Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 7 PDB declaration: nonameric
Chain D 1–1316（1316 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 C0L methyl [(1E,5R)-5-{(3E)-3-[(2E,4E,8R,9E,12E)-1,8-dihydroxy-2,5,9-trimethyltetradeca-2,4,9,12-tetraen-1-ylidene]-2,4-dioxo-3,4-d ihydro-2H-pyran-6-yl}hex-1-en-1-yl]carbamate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.40 Å
6VVX Mycobacterium tuberculosis WT RNAP transcription initiation intermediate structure with Sorangicin Deposited 2020-02-18 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain D 1–1316（1316 aa）
Not recorded SRN SORANGICIN A × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.39 Å
6VVY Mycobacterium tuberculosis WT RNAP transcription open promoter complex with Sorangicin Deposited 2020-02-18 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain D 1–1316（1316 aa）
Not recorded SRN SORANGICIN A × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.42 Å
6VVZ Mycobacterium tuberculosis RNAP S456L mutant transcription initiation intermediate structure with Sorangicin Deposited 2020-02-18 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain D 1–1316（1316 aa）
Not recorded SRN SORANGICIN A × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.72 Å
6VW0 Mycobacterium tuberculosis RNAP S456L mutant open promoter complex Deposited 2020-02-18 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain D 1–1316（1316 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.59 Å

7 other PDB entries and 7 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RPOC_MYCTA
Isoform —
PDB entities 3
Chains and sequence ranges Author chain D； PDBConstruct 3–1318； UniProt 1–1316

DNA-directed RNA polymerase subunit omega

Mycobacterium tuberculosis

UniProt A0A0T9N9K3

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 × 8 DNA 2 PDB declaration: decameric（10） Consistent with all polymer counts Chain E； UniProt 41–149 Not recorded DNA-directed RNA polymerase subunit alpha × 2 （A5U8D3） DNA-directed RNA polymerase subunit beta × 1 （V9Z879） ;DNA-directed RNA polymerase subunit beta' ; × 1 （A5U053） RNA polymerase sigma factor SigA × 1 （P9WGI0） RNA polymerase-binding protein RbpA × 1 （P9WHJ4） DNA (65-MER) × 1 DNA (63-MER) × 1 RNA polymerase-binding transcription factor CarD × 1 （P9WJG2） C0L methyl [(1E,5R)-5-{(3E)-3-[(2E,4E,8R,9E,12E)-1,8-dihydroxy-2,5,9-trimethyltetradeca-2,4,9,12-tetraen-1-ylidene]-2,4-dioxo-3,4-d ihydro-2H-pyran-6-yl}hex-1-en-1-yl]carbamate × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer：pH 8 cryo-EM vitrification conditions：Cryogen ETHANE Resolution 3.55 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 6EEC Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
6BZO Mtb RNAP Holo/RbpA/Fidaxomicin/upstream fork DNA Deposited 2017-12-25 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 7 PDB declaration: nonameric
Chain E 41–149（109 aa）
Not recorded FI8 Fidaxomicin × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.38 Å
6C04 Mtb RNAP Holo/RbpA/double fork DNA -closed clamp Deposited 2017-12-27 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 7 PDB declaration: undecameric
Chain E 41–149（109 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.27 Å
6C05 Mycobacterium tuberculosis RNAP Holo/RbpA in relaxed state Deposited 2017-12-27 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain E 41–149（109 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 5.15 Å
6C06 Mycobacterium tuberculosis RNAP Holo/RbpA/Fidaxomicin Deposited 2017-12-27 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain E 41–149（109 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 FI8 Fidaxomicin × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 5.15 Å
6EDT Mycobacterium tuberculosis RNAP open promoter complex with RbpA/CarD and AP3 promoter Deposited 2018-08-10 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain E 41–149（109 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.60 Å
6EE8 Mycobacterium tuberculosis RNAP promoter unwinding intermediate complex with RbpA/CarD and AP3 promoter Deposited 2018-08-13 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain E 41–149（109 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.92 Å
6M7J Mycobacterium tuberculosis RNAP with RbpA/us fork and Corallopyronin Deposited 2018-08-20 Different oligomeric state Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 7 PDB declaration: nonameric
Chain E 41–149（109 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 C0L methyl [(1E,5R)-5-{(3E)-3-[(2E,4E,8R,9E,12E)-1,8-dihydroxy-2,5,9-trimethyltetradeca-2,4,9,12-tetraen-1-ylidene]-2,4-dioxo-3,4-d ihydro-2H-pyran-6-yl}hex-1-en-1-yl]carbamate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.40 Å
6VVX Mycobacterium tuberculosis WT RNAP transcription initiation intermediate structure with Sorangicin Deposited 2020-02-18 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain E 41–149（109 aa）
Not recorded SRN SORANGICIN A × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.39 Å
6VVY Mycobacterium tuberculosis WT RNAP transcription open promoter complex with Sorangicin Deposited 2020-02-18 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain E 41–149（109 aa）
Not recorded SRN SORANGICIN A × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.42 Å
6VVZ Mycobacterium tuberculosis RNAP S456L mutant transcription initiation intermediate structure with Sorangicin Deposited 2020-02-18 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain E 41–149（109 aa）
Not recorded SRN SORANGICIN A × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.72 Å
6VW0 Mycobacterium tuberculosis RNAP S456L mutant open promoter complex Deposited 2020-02-18 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain E 41–149（109 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.59 Å
7KIF Mycobacterium tuberculosis WT RNAP transcription open promoter complex with WhiB7 transcription factor Deposited 2020-10-23 Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 9 PDB declaration: undecameric
Chain E 40–149（110 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.94 Å
7KIM Mycobacterium tuberculosis WT RNAP transcription closed promoter complex with WhiB7 transcription factor Deposited 2020-10-23 Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 9 PDB declaration: undecameric
Chain E 40–149（110 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.38 Å
7KIN Mycobacterium tuberculosis WT RNAP transcription open promoter complex with WhiB7 promoter Deposited 2020-10-23 Different construct Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain E 40–149（110 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.74 Å
8E74 Mycobacterium tuberculosis RNAP paused elongation complex with NusG transcription factor Deposited 2022-08-23 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 6 PDB declaration: nonameric
Chain E 40–149（110 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.94 Å
8E79 Mycobacterium tuberculosis RNAP paused elongation complex with Escherichia coli NusG transcription factor Deposited 2022-08-23 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 6 PDB declaration: nonameric
Chain E 40–149（110 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.71 Å
8E82 Mycobacterium tuberculosis RNAP elongation complex with NusG transcription factor Deposited 2022-08-25 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 6 PDB declaration: nonameric
Chain E 40–149（110 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.03 Å
8E8M Mycobacterium tuberculosis RNAP paused elongation complex Deposited 2022-08-25 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: octameric
Chain E 40–149（110 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.13 Å
8E95 Mycobacterium tuberculosis RNAP elongation complex Deposited 2022-08-26 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: octameric
Chain E 40–149（110 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å

19 other PDB entries and 19 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name A0A0T9N9K3_MYCTX
Isoform —
PDB entities 4
Chains and sequence ranges Author chain E； PDBConstruct 2–110； UniProt 41–149

RNA polymerase sigma factor SigA

Mycobacterium tuberculosis

UniProt P9WGI0

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 × 8 DNA 2 PDB declaration: decameric（10） Consistent with all polymer counts Chain F； UniProt 1–528 Not recorded DNA-directed RNA polymerase subunit alpha × 2 （A5U8D3） DNA-directed RNA polymerase subunit beta × 1 （V9Z879） ;DNA-directed RNA polymerase subunit beta' ; × 1 （A5U053） DNA-directed RNA polymerase subunit omega × 1 （A0A0T9N9K3） RNA polymerase-binding protein RbpA × 1 （P9WHJ4） DNA (65-MER) × 1 DNA (63-MER) × 1 RNA polymerase-binding transcription factor CarD × 1 （P9WJG2） C0L methyl [(1E,5R)-5-{(3E)-3-[(2E,4E,8R,9E,12E)-1,8-dihydroxy-2,5,9-trimethyltetradeca-2,4,9,12-tetraen-1-ylidene]-2,4-dioxo-3,4-d ihydro-2H-pyran-6-yl}hex-1-en-1-yl]carbamate × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer：pH 8 cryo-EM vitrification conditions：Cryogen ETHANE Resolution 3.55 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 6EEC Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
4X8K Mycobacterium tuberculosis RbpA-SID in complex with SigmaA domain 2 Deposited 2014-12-10 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 236–364（129 aa） Fragment：Domain 2 (UNP residues 236-364)
Not recorded SO4 SULFATE ION × 3 EDO 1,2-ETHANEDIOL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；295.15 K；0.1M Tris pH 8.5, 0.5M ammonium sulfate
Resolution 2.20 Å R-free 0.231
6EDT Mycobacterium tuberculosis RNAP open promoter complex with RbpA/CarD and AP3 promoter Deposited 2018-08-10 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain F 1–528（528 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.60 Å
6EE8 Mycobacterium tuberculosis RNAP promoter unwinding intermediate complex with RbpA/CarD and AP3 promoter Deposited 2018-08-13 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain F 1–528（528 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.92 Å
6M7J Mycobacterium tuberculosis RNAP with RbpA/us fork and Corallopyronin Deposited 2018-08-20 Different oligomeric state Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 7 PDB declaration: nonameric
Chain F 1–528（528 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 C0L methyl [(1E,5R)-5-{(3E)-3-[(2E,4E,8R,9E,12E)-1,8-dihydroxy-2,5,9-trimethyltetradeca-2,4,9,12-tetraen-1-ylidene]-2,4-dioxo-3,4-d ihydro-2H-pyran-6-yl}hex-1-en-1-yl]carbamate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.40 Å
6VVX Mycobacterium tuberculosis WT RNAP transcription initiation intermediate structure with Sorangicin Deposited 2020-02-18 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain F 1–528（528 aa）
Not recorded SRN SORANGICIN A × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.39 Å
6VVY Mycobacterium tuberculosis WT RNAP transcription open promoter complex with Sorangicin Deposited 2020-02-18 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain F 1–528（528 aa）
Not recorded SRN SORANGICIN A × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.42 Å
6VVZ Mycobacterium tuberculosis RNAP S456L mutant transcription initiation intermediate structure with Sorangicin Deposited 2020-02-18 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain F 1–528（528 aa）
Not recorded SRN SORANGICIN A × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.72 Å
6VW0 Mycobacterium tuberculosis RNAP S456L mutant open promoter complex Deposited 2020-02-18 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain F 1–528（528 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.59 Å

8 other PDB entries and 8 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name SIGA_MYCTO
Isoform —
PDB entities 5
Chains and sequence ranges Author chain F； PDBConstruct 4–531； UniProt 1–528

RNA polymerase-binding protein RbpA

Mycobacterium tuberculosis

UniProt P9WHJ4

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 × 8 DNA 2 PDB declaration: decameric（10） Consistent with all polymer counts Chain J； UniProt 1–111 Not recorded DNA-directed RNA polymerase subunit alpha × 2 （A5U8D3） DNA-directed RNA polymerase subunit beta × 1 （V9Z879） ;DNA-directed RNA polymerase subunit beta' ; × 1 （A5U053） DNA-directed RNA polymerase subunit omega × 1 （A0A0T9N9K3） RNA polymerase sigma factor SigA × 1 （P9WGI0） DNA (65-MER) × 1 DNA (63-MER) × 1 RNA polymerase-binding transcription factor CarD × 1 （P9WJG2） C0L methyl [(1E,5R)-5-{(3E)-3-[(2E,4E,8R,9E,12E)-1,8-dihydroxy-2,5,9-trimethyltetradeca-2,4,9,12-tetraen-1-ylidene]-2,4-dioxo-3,4-d ihydro-2H-pyran-6-yl}hex-1-en-1-yl]carbamate × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer：pH 8 cryo-EM vitrification conditions：Cryogen ETHANE Resolution 3.55 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 6EEC Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
4X8K Mycobacterium tuberculosis RbpA-SID in complex with SigmaA domain 2 Deposited 2014-12-10 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 23–111（89 aa）
Not recorded SO4 SULFATE ION × 3 EDO 1,2-ETHANEDIOL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；295.15 K；0.1M Tris pH 8.5, 0.5M ammonium sulfate
Resolution 2.20 Å R-free 0.231
6EDT Mycobacterium tuberculosis RNAP open promoter complex with RbpA/CarD and AP3 promoter Deposited 2018-08-10 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain J 1–111（111 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.60 Å
6EE8 Mycobacterium tuberculosis RNAP promoter unwinding intermediate complex with RbpA/CarD and AP3 promoter Deposited 2018-08-13 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain J 1–111（111 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.92 Å
6M7J Mycobacterium tuberculosis RNAP with RbpA/us fork and Corallopyronin Deposited 2018-08-20 Different oligomeric state Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 7 PDB declaration: nonameric
Chain J 1–111（111 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 C0L methyl [(1E,5R)-5-{(3E)-3-[(2E,4E,8R,9E,12E)-1,8-dihydroxy-2,5,9-trimethyltetradeca-2,4,9,12-tetraen-1-ylidene]-2,4-dioxo-3,4-d ihydro-2H-pyran-6-yl}hex-1-en-1-yl]carbamate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.40 Å
6VVX Mycobacterium tuberculosis WT RNAP transcription initiation intermediate structure with Sorangicin Deposited 2020-02-18 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain J 1–111（111 aa）
Not recorded SRN SORANGICIN A × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.39 Å
6VVY Mycobacterium tuberculosis WT RNAP transcription open promoter complex with Sorangicin Deposited 2020-02-18 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain J 1–111（111 aa）
Not recorded SRN SORANGICIN A × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.42 Å
6VVZ Mycobacterium tuberculosis RNAP S456L mutant transcription initiation intermediate structure with Sorangicin Deposited 2020-02-18 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain J 1–111（111 aa）
Not recorded SRN SORANGICIN A × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.72 Å
6VW0 Mycobacterium tuberculosis RNAP S456L mutant open promoter complex Deposited 2020-02-18 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain J 1–111（111 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.59 Å
7KIF Mycobacterium tuberculosis WT RNAP transcription open promoter complex with WhiB7 transcription factor Deposited 2020-10-23 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 9 PDB declaration: undecameric
Chain J 1–111（111 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.94 Å
7KIM Mycobacterium tuberculosis WT RNAP transcription closed promoter complex with WhiB7 transcription factor Deposited 2020-10-23 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 9 PDB declaration: undecameric
Chain J 1–111（111 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.38 Å
7KIN Mycobacterium tuberculosis WT RNAP transcription open promoter complex with WhiB7 promoter Deposited 2020-10-23 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain J 1–111（111 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.74 Å
9E7V Off-pathway Mycobacterium tuberculosis transcription initiation promoter complex (RNA Polymerase with Sigma-A, CarD, and RbpA) Deposited 2024-11-04 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: decameric
Chain J 1–111（111 aa）
Not recorded POP PYROPHOSPHATE 2- × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
9E7Y De Novo Mycobacterium tuberculosis transcription initiation promoter complex with 7-mer RNA and disordered Beta' Lid element (RNA Polymerase with Sigma-A, CarD, and RbpA) Deposited 2024-11-04 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: undecameric
Chain J 1–111（111 aa）
Not recorded POP PYROPHOSPHATE 2- × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.20 Å
9E84 De Novo Mycobacterium tuberculosis transcription initiation promoter complex with 6-mer RNA and disordered Sigma-A region 4 domain (RNA Polymerase with Sigma-A, CarD, and RbpA) Deposited 2024-11-05 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: 11-meric
Chain J 1–111（111 aa）
Not recorded POP PYROPHOSPHATE 2- × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.60 Å
9E85 De Novo Mycobacterium tuberculosis transcription initiation promoter complex with 6-mer RNA and closed Beta' clamp (RNA Polymerase with Sigma-A, CarD, and RbpA) Deposited 2024-11-05 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: 11-meric
Chain J 1–111（111 aa）
Not recorded POP PYROPHOSPHATE 2- × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
9E86 De Novo Mycobacterium tuberculosis transcription initiation promoter complex with 5-mer RNA and open Beta' clamp (RNA Polymerase with Sigma-A, CarD, and RbpA) Deposited 2024-11-05 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: 11-meric
Chain J 1–111（111 aa）
Not recorded POP PYROPHOSPHATE 2- × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
9E87 De Novo Mycobacterium tuberculosis transcription initiation pre-RPO promoter complex with open Beta' clamp (RNA Polymerase with Sigma-A, CarD, and RbpA) Deposited 2024-11-05 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: decameric
Chain J 1–111（111 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.60 Å

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

View Construct and Data Evidence
UniProt name RBPA_MYCTO
Isoform —
PDB entities 6
Chains and sequence ranges Author chain J； PDBConstruct 1–111； UniProt 1–111

RNA polymerase-binding transcription factor CarD

Mycobacterium tuberculosis

UniProt P9WJG2

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 × 8 DNA 2 PDB declaration: decameric（10） Consistent with all polymer counts Chain M； UniProt 1–162 Not recorded DNA-directed RNA polymerase subunit alpha × 2 （A5U8D3） DNA-directed RNA polymerase subunit beta × 1 （V9Z879） ;DNA-directed RNA polymerase subunit beta' ; × 1 （A5U053） DNA-directed RNA polymerase subunit omega × 1 （A0A0T9N9K3） RNA polymerase sigma factor SigA × 1 （P9WGI0） RNA polymerase-binding protein RbpA × 1 （P9WHJ4） DNA (65-MER) × 1 DNA (63-MER) × 1 C0L methyl [(1E,5R)-5-{(3E)-3-[(2E,4E,8R,9E,12E)-1,8-dihydroxy-2,5,9-trimethyltetradeca-2,4,9,12-tetraen-1-ylidene]-2,4-dioxo-3,4-d ihydro-2H-pyran-6-yl}hex-1-en-1-yl]carbamate × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer：pH 8 cryo-EM vitrification conditions：Cryogen ETHANE Resolution 3.55 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 6EEC Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
6EDT Mycobacterium tuberculosis RNAP open promoter complex with RbpA/CarD and AP3 promoter Deposited 2018-08-10 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain M 1–162（162 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.60 Å
6EE8 Mycobacterium tuberculosis RNAP promoter unwinding intermediate complex with RbpA/CarD and AP3 promoter Deposited 2018-08-13 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain M 1–162（162 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.92 Å
6VVX Mycobacterium tuberculosis WT RNAP transcription initiation intermediate structure with Sorangicin Deposited 2020-02-18 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain M 1–162（162 aa）
Not recorded SRN SORANGICIN A × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.39 Å
6VVY Mycobacterium tuberculosis WT RNAP transcription open promoter complex with Sorangicin Deposited 2020-02-18 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain M 1–162（162 aa）
Not recorded SRN SORANGICIN A × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.42 Å
6VVZ Mycobacterium tuberculosis RNAP S456L mutant transcription initiation intermediate structure with Sorangicin Deposited 2020-02-18 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain M 1–162（162 aa）
Not recorded SRN SORANGICIN A × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.72 Å
6VW0 Mycobacterium tuberculosis RNAP S456L mutant open promoter complex Deposited 2020-02-18 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain M 1–162（162 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.59 Å
7KIF Mycobacterium tuberculosis WT RNAP transcription open promoter complex with WhiB7 transcription factor Deposited 2020-10-23 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 9 PDB declaration: undecameric
Chain M 1–162（162 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.94 Å
7KIM Mycobacterium tuberculosis WT RNAP transcription closed promoter complex with WhiB7 transcription factor Deposited 2020-10-23 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 9 PDB declaration: undecameric
Chain M 1–162（162 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.38 Å
7KIN Mycobacterium tuberculosis WT RNAP transcription open promoter complex with WhiB7 promoter Deposited 2020-10-23 Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric
Chain M 1–162（162 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.74 Å
9E7V Off-pathway Mycobacterium tuberculosis transcription initiation promoter complex (RNA Polymerase with Sigma-A, CarD, and RbpA) Deposited 2024-11-04 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: decameric
Chain M 1–162（162 aa）
Not recorded POP PYROPHOSPHATE 2- × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
9E7Y De Novo Mycobacterium tuberculosis transcription initiation promoter complex with 7-mer RNA and disordered Beta' Lid element (RNA Polymerase with Sigma-A, CarD, and RbpA) Deposited 2024-11-04 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: undecameric
Chain M 1–162（162 aa）
Not recorded POP PYROPHOSPHATE 2- × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.20 Å
9E84 De Novo Mycobacterium tuberculosis transcription initiation promoter complex with 6-mer RNA and disordered Sigma-A region 4 domain (RNA Polymerase with Sigma-A, CarD, and RbpA) Deposited 2024-11-05 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: 11-meric
Chain M 1–162（162 aa）
Not recorded POP PYROPHOSPHATE 2- × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.60 Å
9E85 De Novo Mycobacterium tuberculosis transcription initiation promoter complex with 6-mer RNA and closed Beta' clamp (RNA Polymerase with Sigma-A, CarD, and RbpA) Deposited 2024-11-05 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: 11-meric
Chain M 1–162（162 aa）
Not recorded POP PYROPHOSPHATE 2- × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
9E86 De Novo Mycobacterium tuberculosis transcription initiation promoter complex with 5-mer RNA and open Beta' clamp (RNA Polymerase with Sigma-A, CarD, and RbpA) Deposited 2024-11-05 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: 11-meric
Chain M 1–162（162 aa）
Not recorded POP PYROPHOSPHATE 2- × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
9E87 De Novo Mycobacterium tuberculosis transcription initiation pre-RPO promoter complex with open Beta' clamp (RNA Polymerase with Sigma-A, CarD, and RbpA) Deposited 2024-11-05 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: decameric
Chain M 1–162（162 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.60 Å
9E88 De novo backtracked transcription elongation complex of Mycobacterium tuberculosis RNA polymerase on a linear DNA fragment (TEC-Backtracked) Deposited 2024-11-05 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Insufficient information Heteromer；Protein × 6 PDB declaration: nonameric
Chain M 1–162（162 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å

16 other PDB entries and 16 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CARD_MYCTO
Isoform —
PDB entities 9
Chains and sequence ranges Author chain M； PDBConstruct 1–162； UniProt 1–162

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

SAXS profile for 6eec

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 6eec
Download Download
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2. Structure Basics 2. Structure Basics

Entry ID entry_id6eec
Deposition date deposition_date2018-08-13
Structure title titleMycobacterium tuberculosis RNAP promoter unwinding intermediate complex with RbpA/CarD and AP3 promoter captured by Corallopyronin
Keywords keywordsinitiation, transcription bubble, closed clamp, open promoter complex, TRANSCRIPTION, TRANSCRIPTION-DNA complex; TRANSCRIPTION/DNA
Experimental Method methodELECTRON MICROSCOPY
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3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier52.01 Å
Radius of gyration Rg (electron density) rg_electron50.89 Å
Forward intensity I(0) i03011550000.00
Molecular weight molecular_weight427530.0 kDa
Excluded volume excluded_volume522620 ų
Envelope volume envelope_volume759440 ų
Hydration-shell volume shell_volume119590 ų
Envelope diameter envelope_diameter188.1 Å
Shell Rg shell_rg57.60 Å
Envelope Rg envelope_rg50.86 Å
Shape Rg shape_rg50.87 Å
Total Rg total_rg51.15 Å
Total atoms total_atoms29936
Residues n_residues3636
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 Å−1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3
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4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax174.0 Å
Rg (real space) rg_real51.90 Å
Rg uncertainty (real space) rg_real_error1.16 Å
I(0) (real space) i0_real3.0120e+09
I(0) uncertainty (real space) i0_real_error5.4780e+07
Rg (reciprocal space) rg_reciprocal52.10 Å
I(0) (reciprocal space) i0_reciprocal3012000000.0000
Solution quality estimate total_estimate0.8639
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary63.8 Å
Skewness Skewness skewness0.311
Kurtosis Kurtosis kurtosis-0.209
Angular range angular_range— – 0.1500 Å−1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha438600000.0000
Real-space data points n_real_points31
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.811; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.961; Smooth: 0.833
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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (12)

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7. Fold Classification (SCOP + CATH) 8 domains

CATH v4.4 (8 domains)

Domain ID domain_id6eecA01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1360 — Gyrase A; domain 2
Homologous superfamily homologous superfamily10 — RNA polymerase, RBP11-like subunit
Domain ID domain_id6eecA02
Class class2 — Mainly Beta
Architecture architecture170 — Beta Complex
Topology topology120 — RNA Polymerase Alpha Subunit; Chain A, domain 2
Homologous superfamily homologous superfamily12 — DNA-directed RNA polymerase, insert domain
Domain ID domain_id6eecB01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1360 — Gyrase A; domain 2
Homologous superfamily homologous superfamily10 — RNA polymerase, RBP11-like subunit
Domain ID domain_id6eecB02
Class class2 — Mainly Beta
Architecture architecture170 — Beta Complex
Topology topology120 — RNA Polymerase Alpha Subunit; Chain A, domain 2
Homologous superfamily homologous superfamily12 — DNA-directed RNA polymerase, insert domain
Domain ID domain_id6eecC01
Class class3 — Alpha Beta
Architecture architecture90 — Alpha-Beta Complex
Topology topology1110 — Dna-directed Rna Polymerase Ii 140kd Polypeptide; Chain: B; domain 3
Homologous superfamily homologous superfamily10 — RNA polymerase Rpb2, domain 2
Domain ID domain_id6eecD01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology274 — Enzyme I; Chain A, domain 2
Homologous superfamily homologous superfamily100 — RNA polymerase Rpb1, domain 3
Domain ID domain_id6eecD02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology132 — Topoisomerase I; Chain A, domain 4
Homologous superfamily homologous superfamily30 — RNA polymerase Rpb1 funnel domain
Domain ID domain_id6eecM02
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily1290 — CarD-like, C-terminal domain
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8. Citations (1)

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9. Files and Curves (10)