3a0z

X-ray diffraction
1.75Å resolution

Catalytic domain of histidine kinase ThkA (TM1359) (nucleotide free form 4: isopropanol, orthorombic)

Released:

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:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-194768 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
histidine kinase Chains: A, B
Molecule details ›
Chains: A, B
Length: 152 amino acids
Theoretical weight: 17.73 KDa
Source organism: Thermotoga maritima
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q9X180 (Residues: 605-755; Coverage: 20%)
Gene name: TM_1359
Sequence domains: Histidine kinase-, DNA gyrase B-, and HSP90-like ATPase
Structure domains: Histidine kinase-like ATPase, C-terminal domain

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SPRING-8 BEAMLINE BL44B2
Spacegroup: P212121
Unit cell:
a: 58.31Å b: 61.094Å c: 89.952Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.198 0.195 0.241
Expression system: Escherichia coli BL21(DE3)