2zti

X-ray diffraction
2.6Å resolution

Structures of dimeric nonstandard nucleotide triphosphate pyrophosphatase from Pyrococcus horikoshii OT3: functional significance of interprotomer conformational changes

Released:

Function and Biology Details

Reaction catalysed:
ITP + H(2)O = IMP + diphosphate

Structure analysis Details

Assembly composition:
homo dimer (preferred)
PDBe Complex ID:
PDB-CPX-129876 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
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
UniProt:
  • Canonical: O59580 (Residues: 1-186; Coverage: 100%)
Gene name: PH1917
Sequence domains: Ham1 family
Structure domains: Maf protein

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SPRING-8 BEAMLINE BL26B1
Spacegroup: P3221
Unit cell:
a: 76.282Å b: 76.282Å c: 82.585Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.21 0.21 0.212
Expression system: Escherichia coli