3ihq

X-ray diffraction
1.9Å resolution

Crystal Structure of Reduced C10S Spx in Complex with the Alpha C-terminal Domain of RNA Polymeras

Released:

Function and Biology Details

Reaction catalysed:
Nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1)
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-128311 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Global transcriptional regulator Spx Chain: A
Molecule details ›
Chain: A
Length: 132 amino acids
Theoretical weight: 15.67 KDa
Source organism: Bacillus subtilis
Expression system: Escherichia coli
UniProt:
  • Canonical: O31602 (Residues: 1-131; Coverage: 100%)
Gene names: BSU11500, spx, spxA, yjbD
Sequence domains: ArsC family
Structure domains: Glutaredoxin
DNA-directed RNA polymerase subunit alpha Chain: B
Molecule details ›
Chain: B
Length: 75 amino acids
Theoretical weight: 8.53 KDa
Source organism: Bacillus subtilis
Expression system: Escherichia coli
UniProt:
  • Canonical: P20429 (Residues: 245-314; Coverage: 22%)
Gene names: BSU01430, rpoA
Sequence domains: Bacterial RNA polymerase, alpha chain C terminal domain
Structure domains: 5' to 3' exonuclease, C-terminal subdomain

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 8.3.1
Spacegroup: P1
Unit cell:
a: 29.39Å b: 32.22Å c: 50.58Å
α: 106.07° β: 91.62° γ: 103.77°
R-values:
R R work R free
0.236 0.236 0.278
Expression system: Escherichia coli