X-ray diffraction
2.65Å resolution

Crystal structure of CpxAHDC (orthorhombic form 2)

Source organism: Escherichia coli K-12
Entry authors: Mechaly AE, Sassoon N, Betton JM, Alzari PM

Function and Biology Details

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Sensor histidine kinase CpxA Chains: A, B, C, D, E, F
Molecule details ›
Chains: A, B, C, D, E, F
Length: 298 amino acids
Theoretical weight: 33.34 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli
  • Canonical: P0AE82 (Residues: 188-457; Coverage: 59%)
Gene names: JW3882, b3911, cpxA, ecfB, eup, ssd
Sequence domains:
Structure domains:

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID29
Spacegroup: P21212
Unit cell:
a: 120.448Å b: 125.108Å c: 159.794Å
α: 90° β: 90° γ: 90°
R R work R free
0.207 0.206 0.235
Expression system: Escherichia coli