X-ray diffraction
2.25Å resolution

The structure of a sensor domain of a histidine kinase (VxrA) from Vibrio cholerae O1 biovar eltor str. N16961, 2nd form

Entry authors: Tan K, Wu R, Jedrzejczak R, Joachimiak A, Center for Structural Genomics of Infectious Diseases (CSGID)

Function and Biology Details

Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Histidine kinase domain-containing protein Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 222 amino acids
Theoretical weight: 24.88 KDa
Source organism: Vibrio cholerae O1 biovar El Tor str. N16961
Expression system: Escherichia coli BL21(DE3)
  • Canonical: Q9KM24 (Residues: 38-256; Coverage: 47%)
Gene name: VC_A0565

Ligands and Environments

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 19-ID
Spacegroup: P212121
Unit cell:
a: 112.085Å b: 116.677Å c: 120.747Å
α: 90° β: 90° γ: 90°
R R work R free
0.206 0.205 0.227
Expression system: Escherichia coli BL21(DE3)