X-ray diffraction
5.02Å resolution

Crystal Form B2


Function and Biology Details

Structure analysis Details

Assembly composition:
homo hexamer (preferred)
Entry contents:
1 distinct polypeptide molecule
Replicative DNA helicase Chains: A, B
Molecule details ›
Chains: A, B
Length: 454 amino acids
Theoretical weight: 50.7 KDa
Source organism: Geobacillus stearothermophilus
Expression system: Escherichia coli BL21(DE3)
  • Canonical: Q9X4C9 (Residues: 1-454; Coverage: 100%)
Gene name: dnaB
Sequence domains:

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 24-ID-C
Spacegroup: R32
Unit cell:
a: 199.797Å b: 199.797Å c: 195.036Å
α: 90° β: 90° γ: 120°
R R work R free
0.394 0.393 0.397
Expression system: Escherichia coli BL21(DE3)