PDBe 2a9e

X-ray diffraction
1.76Å resolution

Helicobacter pylori catalase compound I

Source organism: Helicobacter pylori
Entry authors: Loewen PC, Carpena X, Fita I

Function and Biology Details

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
Catalase Chains: A, B
Molecule details ›
Chains: A, B
Length: 505 amino acids
Theoretical weight: 58.79 KDa
Source organism: Helicobacter pylori
Expression system: Escherichia coli
  • Canonical: P77872 (Residues: 1-505; Coverage: 100%)
Gene names: HP_0875, katA
Sequence domains:

Ligands and Environments

3 bound ligands:

1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-1
Spacegroup: P21212
Unit cell:
a: 64.385Å b: 154.286Å c: 95.808Å
α: 90° β: 90° γ: 90°
R R work R free
0.139 0.137 0.178
Expression system: Escherichia coli