Current Protein Identity：P9WGI5
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Difference tags compare only the current result set; every original PDB and assembly record remains separate.
Related-Structure Differences
Each row represents one biological assembly in one PDB entry; multiple monomers of the same protein are listed separately.
| PDB Entry | Assembly / Oligomeric State | Construct | Mutations and Modifications | Ligands, Ions and Non-polymers | Experimental Method | Experimental Conditions | Structure Quality |
|---|---|---|---|---|---|---|---|
| 7PP4 Cryo-EM structure of Mycobacterium tuberculosis RNA polymerase holoenzyme comprising sigma factor SigB Deposited 2021-09-13 | Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count |
Chain f
1–323（323 aa）
|
Not recorded | ZN ZINC ION × 2 MG MAGNESIUM ION × 1 | ELECTRON MICROSCOPY |
cryo-EM buffer
pH 7.9
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.84 Å |
| 7Q4U Cryo-EM structure of Mycobacterium tuberculosis RNA polymerase holoenzyme octamer comprising sigma factor SigB Deposited 2021-11-02 | Assembly 1 Protein heterocomplex Heteromer；Protein × 48 PDB declaration: 48-meric（48） Consistent with protein count |
Chain EA
1–323（323 aa）
Chain F
1–323（323 aa）
Chain KA
1–323（323 aa）
Chain L
1–323（323 aa）
Chain QA
1–323（323 aa）
Chain R
1–323（323 aa）
Chain WA
1–323（323 aa）
Chain Y
1–323（323 aa）
|
Not recorded | ZN ZINC ION × 16 MG MAGNESIUM ION × 8 | ELECTRON MICROSCOPY |
cryo-EM buffer
pH 7.9
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 4.39 Å |
| 7Q59 Cryo-EM structure of Mycobacterium tuberculosis RNA polymerase holoenzyme dimer comprising sigma factor SigB Deposited 2021-11-03 | Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric（12） Consistent with protein count |
Chain F
1–323（323 aa）
Chain f
1–323（323 aa）
|
Not recorded | ZN ZINC ION × 4 MG MAGNESIUM ION × 2 | ELECTRON MICROSCOPY |
cryo-EM buffer
pH 7.9
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 4.36 Å |
| 9FJP Cryo-EM structure of Mycobacterium tuberculosis sigma-B RNA polymerase bound to -10 promoter element ssDNA oligo Deposited 2024-05-31 | Assembly 1 Protein–DNA Heteromer；Protein × 6 PDB declaration: heptameric（7） Consistent with all polymers |
Chain f
1–323（323 aa）
|
Not recorded | ZN ZINC ION × 2 MG MAGNESIUM ION × 1 | ELECTRON MICROSCOPY |
cryo-EM buffer
pH 7.9；8 mM CHAPSO added before vitrificaion
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.20 Å |
| 9FJR Cryo-EM structure of Mycobacterium tuberculosis sigma-B RNA polymerase bound to -10 promoter element ssDNA oligo - sigma-B docked conformation Deposited 2024-05-31 | Assembly 1 Protein–DNA Heteromer；Protein × 6 PDB declaration: heptameric（7） Consistent with all polymers |
Chain f
1–323（323 aa）
|
Not recorded | ZN ZINC ION × 2 MG MAGNESIUM ION × 1 | ELECTRON MICROSCOPY |
cryo-EM buffer
pH 7.9；8 mM CHAPSO added before vitrificaion
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.43 Å |
| 9FJS Cryo-EM structure of Mycobacterium tuberculosis sigma-B RNA polymerase bound to -10 promoter element ssDNA oligo - sigma-B undocked conformation Deposited 2024-05-31 | Assembly 1 Protein–DNA Heteromer；Protein × 6 PDB declaration: heptameric（7） Consistent with all polymers |
Chain f
1–323（323 aa）
|
Not recorded | ZN ZINC ION × 2 MG MAGNESIUM ION × 1 | ELECTRON MICROSCOPY |
cryo-EM buffer
pH 7.9；8 mM CHAPSO added before vitrificaion
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.48 Å |