X-ray diffraction
2.21Å resolution

Structure of PH1917 protein with the complex of ITP from Pyrococcus horikoshii


Function and Biology Details

Reaction catalysed:
ITP + H(2)O = IMP + diphosphate
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
dITP/XTP pyrophosphatase Chain: A
Molecule details ›
Chain: A
Length: 186 amino acids
Theoretical weight: 21.23 KDa
Source organism: Pyrococcus horikoshii
Expression system: Escherichia coli
  • Canonical: O59580 (Residues: 1-186; Coverage: 100%)
Gene name: PH1917
Sequence domains: Ham1 family
Structure domains: Maf protein

Ligands and Environments

2 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SPRING-8 BEAMLINE BL26B1
Spacegroup: C2221
Unit cell:
a: 78.261Å b: 93.068Å c: 54.051Å
α: 90° β: 90° γ: 90°
R R work R free
0.205 0.205 0.229
Expression system: Escherichia coli