PDBe 3by8

X-ray diffraction
1.45Å resolution

Crystal Structure of the E.coli DcuS Sensor Domain


Function and Biology Details

Reaction catalysed:
ATP + protein L-histidine = ADP + protein N-phospho-L-histidine. 
Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assemblies composition:
monomeric (preferred)
homo dimer
Entry contents:
1 distinct polypeptide molecule
Sensor histidine kinase DcuS Chain: A
Molecule details ›
Chain: A
Length: 142 amino acids
Theoretical weight: 15.76 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli BL21(DE3)
  • Canonical: P0AEC8 (Residues: 42-181; Coverage: 26%)
Gene names: JW4086, b4125, dcuS, yjdH
Sequence domains: Single cache domain 3
Structure domains: Beta-Lactamase

Ligands and Environments

1 bound ligand:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X4A
Spacegroup: P3121
Unit cell:
a: 86.111Å b: 86.111Å c: 35.207Å
α: 90° β: 90° γ: 120°
R R work R free
0.219 0.219 0.232
Expression system: Escherichia coli BL21(DE3)