7u22

X-ray diffraction
3.87Å resolution

Mycobacterium tuberculosis RNA polymerase sigma A holoenzyme open promoter complex containing UMN-7

Released:
Model geometry
Fit model/data

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero octamer (preferred)
PDBe Complex ID:
PDB-CPX-122116 (preferred)
Entry contents:
5 distinct polypeptide molecules
2 distinct DNA molecules
Macromolecules (7 distinct):
DNA-directed RNA polymerase subunit alpha Chains: A, B
Molecule details ›
Chains: A, B
Length: 347 amino acids
Theoretical weight: 37.75 KDa
Source organism: Mycobacterium tuberculosis
Expression system: Mycobacterium tuberculosis
UniProt:
  • Canonical: P9WGZ1 (Residues: 1-347; Coverage: 100%)
Gene names: MTCY13E12.10c, Rv3457c, rpoA
Sequence domains:
DNA-directed RNA polymerase subunit beta Chain: C
Molecule details ›
Chain: C
Length: 1178 amino acids
Theoretical weight: 130.02 KDa
Source organism: Mycobacterium tuberculosis
Expression system: Mycobacterium tuberculosis
UniProt:
  • Canonical: P9WGY9 (Residues: 1-1178; Coverage: 100%)
Gene names: MTCI376.08c, Rv0667, rpoB
Sequence domains:
DNA-directed RNA polymerase subunit beta' Chain: D
DNA-directed RNA polymerase subunit omega Chain: E
RNA polymerase sigma factor SigA Chain: F
T DNA Chain: G
NT DNA Chain: H

Ligands and Environments

3 bound ligands:
No modified residues

Experiments and Validation Details

wwPDB Validation report is not available for this entry.
X-ray source: SSRL BEAMLINE BL12-2
Spacegroup: P212121
Unit cell:
a: 149.482Å b: 161.445Å c: 196.603Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.242 0.24 0.278
Expression system: Mycobacterium tuberculosis