X-ray diffraction
2.07Å resolution

Crystal structure of KaiC-like protein PH0186 from hyperthermophilic archaea Pyrococcus horikoshii OT3


Function and Biology Details

Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo hexamer (preferred)
Entry contents:
1 distinct polypeptide molecule
KaiC domain-containing protein Chains: A, B, C
Molecule details ›
Chains: A, B, C
Length: 251 amino acids
Theoretical weight: 28.88 KDa
Source organism: Pyrococcus horikoshii
Expression system: Escherichia coli
  • Canonical: O57925 (Residues: 1-251; Coverage: 100%)
Gene name: PH0186
Sequence domains: KaiC
Structure domains: P-loop containing nucleotide triphosphate hydrolases

Ligands and Environments

2 bound ligands:
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: SPRING-8 BEAMLINE BL38B1
Spacegroup: C2
Unit cell:
a: 173.655Å b: 51.807Å c: 97.468Å
α: 90° β: 122.83° γ: 90°
R R work R free
0.199 0.197 0.25
Expression system: Escherichia coli