X-ray diffraction
1.93Å resolution



Function and Biology Details

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
DNA gyrase subunit A Chains: A, B
Molecule details ›
Chains: A, B
Length: 156 amino acids
Theoretical weight: 17.57 KDa
Source organism: Shigella flexneri
Expression system: Escherichia coli BL21(DE3)
  • Canonical: P0AES5 (Residues: 363-497; Coverage: 15%)
Gene names: S2444, SF2311, gyrA
Structure domains: Topoisomerase, domain 3
CcdB Chains: C, D
Molecule details ›
Chains: C, D
Length: 105 amino acids
Theoretical weight: 11.88 KDa
Source organism: Aliivibrio fischeri
Expression system: Escherichia coli
  • Canonical: Q84B82 (Residues: 1-105; Coverage: 100%)
Gene name: ccdB
Sequence domains: CcdB protein
Structure domains: SH3 type barrels.

Ligands and Environments

2 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-2
Spacegroup: C2
Unit cell:
a: 130.073Å b: 90.833Å c: 58.13Å
α: 90° β: 102.59° γ: 90°
R R work R free
0.187 0.186 0.217
Expression systems:
  • Escherichia coli BL21(DE3)
  • Escherichia coli