X-ray diffraction
2Å resolution

High resolution structure and biochemical properties of a recombinant catalase depleted in iron


Function and Biology Details

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
Catalase Chain: A
Molecule details ›
Chain: A
Length: 484 amino acids
Theoretical weight: 55.73 KDa
Source organism: Proteus mirabilis
Expression system: Escherichia coli
  • Canonical: P42321 (Residues: 1-484; Coverage: 100%)
Gene name: katA
Sequence domains:
Structure domains: Catalase core domain

Ligands and Environments

Cofactor: Ligand HEM 1 x HEM
2 bound ligands:
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE BM14
Spacegroup: P6222
Unit cell:
a: 108.572Å b: 108.572Å c: 248.76Å
α: 90° β: 90° γ: 120°
R R work R free
0.199 0.199 0.215
Expression system: Escherichia coli