6m7j

Mycobacterium tuberculosis RNAP with RbpA/us fork and Corallopyronin

Method: ELECTRON MICROSCOPY
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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 Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–DNA Heteromer Protein 7 DNA 2 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 (31-MER) × 1 DNA (26-MER) × 1 ZINC ION × 2 MAGNESIUM ION × 1 ;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 Consistent with all polymers

Other States of the Same Protein in the Database

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 Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–DNA Heteromer Protein 7 DNA 2 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 (31-MER) × 1 DNA (26-MER) × 1 ZINC ION × 2 MAGNESIUM ION × 1 ;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 Consistent with all polymers

Other States of the Same Protein in the Database

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 Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–DNA Heteromer Protein 7 DNA 2 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 (31-MER) × 1 DNA (26-MER) × 1 ZINC ION × 2 MAGNESIUM ION × 1 ;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 Consistent with all polymers

Other States of the Same Protein in the Database

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 Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–DNA Heteromer Protein 7 DNA 2 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 (31-MER) × 1 DNA (26-MER) × 1 ZINC ION × 2 MAGNESIUM ION × 1 ;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 Consistent with all polymers

Other States of the Same Protein in the Database

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 Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–DNA Heteromer Protein 7 DNA 2 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 (31-MER) × 1 DNA (26-MER) × 1 ZINC ION × 2 MAGNESIUM ION × 1 ;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 Consistent with all polymers

Other States of the Same Protein in the Database

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 Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–DNA Heteromer Protein 7 DNA 2 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 (31-MER) × 1 DNA (26-MER) × 1 ZINC ION × 2 MAGNESIUM ION × 1 ;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 Consistent with all polymers

Other States of the Same Protein in the Database

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

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_id6m7j
Deposition date deposition_date2018-08-20
Structure title titleMycobacterium tuberculosis RNAP with RbpA/us fork and Corallopyronin
Keywords keywordsinitiation, transcription bubble, closed clamp, open promoter complex, TRANSCRIPTION, TRANSCRIPTION-DNA complex; TRANSCRIPTION
Experimental Method methodELECTRON MICROSCOPY
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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

6m7j__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

6m7j__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 109 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

6m7j__assembly_1__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg(Guinier)51.17 Å
Rg (electron density)50.20 Å
Total Rg50.44 Å
Atom count27223
Residues3406
Excluded volume479360 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 6m7j__assembly_1__model_1 nonameric (9) Success 4.1.3-1-20251215 (887e7ef) View Download
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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (11)

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7. Citations (1)