1th8

X-ray diffraction
2.4Å resolution

Crystal Structures of the ADP and ATP bound forms of the Bacillus Anti-sigma factor SpoIIAB in complex with the Anti-anti-sigma SpoIIAA: inhibitory complex with ADP, crystal form II

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
PDBe Complex ID:
PDB-CPX-128466 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Anti-sigma F factor Chain: A
Molecule details ›
Chain: A
Length: 145 amino acids
Theoretical weight: 16.27 KDa
Source organism: Geobacillus stearothermophilus
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: O32727 (Residues: 1-136; Coverage: 93%)
Gene name: spoIIAB
Sequence domains: Histidine kinase-, DNA gyrase B-, and HSP90-like ATPase
Structure domains: Histidine kinase-like ATPase, C-terminal domain
Anti-sigma F factor antagonist Chain: B
Molecule details ›
Chain: B
Length: 116 amino acids
Theoretical weight: 12.82 KDa
Source organism: Geobacillus stearothermophilus
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: O32726 (Residues: 1-116; Coverage: 100%)
Gene name: spoIIAA
Sequence domains: STAS domain
Structure domains: STAS domain

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X9A
Spacegroup: R32
Unit cell:
a: 153.646Å b: 153.646Å c: 97.517Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.214 0.214 0.253
Expression system: Escherichia coli BL21(DE3)