1i5b

X-ray diffraction
1.94Å resolution

STRUCTURE OF CHEA DOMAIN P4 IN COMPLEX WITH ADPNP AND MANGANESE

Released:
Source organism: Thermotoga maritima
Primary publication:
Nucleotide binding by the histidine kinase CheA.
Nat Struct Biol 8 353-60 (2001)
PMID: 11276258

Function and Biology Details

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

Structure analysis Details

Assembly composition:
homo dimer (preferred)
PDBe Complex ID:
PDB-CPX-176352 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Chemotaxis protein CheA Chains: A, B
Molecule details ›
Chains: A, B
Length: 189 amino acids
Theoretical weight: 21.08 KDa
Source organism: Thermotoga maritima
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q56310 (Residues: 352-540; Coverage: 28%)
Gene names: TM_0702, cheA
Sequence domains: Histidine kinase-, DNA gyrase B-, and HSP90-like ATPase
Structure domains: Histidine kinase-like ATPase, C-terminal domain

Ligands and Environments

3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRL BEAMLINE BL9-2
Spacegroup: P21
Unit cell:
a: 40.83Å b: 48.41Å c: 86.4Å
α: 90° β: 95.03° γ: 90°
R-values:
R R work R free
0.225 0.225 0.265
Expression system: Escherichia coli BL21(DE3)