PDBe 2wk9

X-ray diffraction
1.9Å resolution

Structure of Plp_Thr aldimine form of Vibrio cholerae CqsA


Function and Biology Details

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
CAI-1 autoinducer synthase Chains: A, B
Molecule details ›
Chains: A, B
Length: 389 amino acids
Theoretical weight: 43.64 KDa
Source organism: Vibrio cholerae O1 biovar El Tor str. N16961
Expression system: Escherichia coli BL21(DE3)
  • Canonical: Q9KM65 (Residues: 1-389; Coverage: 100%)
Gene names: VC_A0523, cqsA
Sequence domains: Aminotransferase class I and II
Structure domains:

Ligands and Environments

3 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-1
Spacegroup: P21212
Unit cell:
a: 177.293Å b: 70.011Å c: 70.693Å
α: 90° β: 90° γ: 90°
R R work R free
0.201 0.199 0.24
Expression system: Escherichia coli BL21(DE3)