PDBe 2bqx

X-ray diffraction
1.9Å resolution

Inorganic Pyrophosphatase from the Pathogenic Bacterium Helicobacter pylori-Kinetic and Structural Properties


Function and Biology Details

Reaction catalysed:
Diphosphate + H(2)O = 2 phosphate. 
Biochemical function:
Cellular component:

Structure analysis Details

Assembly composition:
homo hexamer (preferred)
Entry contents:
1 distinct polypeptide molecule
Inorganic pyrophosphatase Chain: A
Molecule details ›
Chain: A
Length: 173 amino acids
Theoretical weight: 19.3 KDa
Source organism: Helicobacter pylori 26695
Expression system: Escherichia coli
  • Canonical: P56153 (Residues: 1-173; Coverage: 100%)
Gene names: HP_0620, ppa
Sequence domains: Inorganic pyrophosphatase
Structure domains: Inorganic Pyrophosphatase

Ligands and Environments

No bound ligands

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SPRING-8 BEAMLINE BL12B2
Spacegroup: P6322
Unit cell:
a: 102.65Å b: 102.65Å c: 93.63Å
α: 90° β: 90° γ: 120°
R R work R free
0.217 0.217 0.232
Expression system: Escherichia coli