› 1xhe

X-ray diffraction
2.5Å resolution

Crystal structure of the receiver domain of redox response regulator arca

Released:
DOI: 10.2210/pdb1xhe/pdb
PDB entry 1xhe coloured by chain, front view.
PDB entry 1xhe coloured by chain, side view.
PDB entry 1xhe coloured by chain, top view.
Source organism: Escherichia coli
Primary publication:
Structural analysis and solution studies of the activated regulatory domain of the response regulator ArcA: a symmetric dimer mediated by the alpha4-beta5-alpha5 face.
Toro-Roman A, Mack TR, Stock AM
J Mol Biol 349 11-26 (2005)
PMID: 15876365

Function and Biology Details

Biochemical function:
  • not assigned
Biological process:
Cellular component:
  • not assigned
Sequence domains:
Structure domain:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-141913 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Aerobic respiration control protein ArcA Chains: A, B
Molecule details ›
Chains: A, B
Length: 123 amino acids
Theoretical weight: 14 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
UniProt:
  • Canonical: P0A9Q1 (Residues: 1-123; Coverage: 52%)
Gene names: JW4364, arcA, b4401, cpxC, dye, fexA, msp, seg, sfrA
Sequence domains: Response regulator receiver domain
Structure domains: Rossmann fold

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X4A
Spacegroup: P6522
Unit cell:
a: 86.695Å b: 86.695Å c: 214.71Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.215 0.213 0.256
Expression system: Escherichia coli

Quick links

Citations

13 review citations

Bacterial response regulators: versatile regulatory strategies from common domains.
Gao et al. (2007)
12 more

8 mentions without citation

Identification of direct residue contacts in protein-protein interaction by message passing.
Weigt et al. (2009)
7 more