X-ray diffraction
1.3Å resolution

Crystal structure of cofactor-free urate oxidase in complex with its 5-peroxoisourate intermediate (X-ray dose, 2.2 kGy)

Source organism: Aspergillus flavus
Entry authors: Bui S, Steiner RA

Function and Biology Details

Reaction catalysed:
Urate + O(2) + H(2)O = 5-hydroxyisourate + H(2)O(2)
Biochemical function:
Cellular component:
Sequence domain:

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
Uricase Chain: A
Molecule details ›
Chain: A
Length: 302 amino acids
Theoretical weight: 34.29 KDa
Source organism: Aspergillus flavus
Expression system: Escherichia coli
  • Canonical: Q00511 (Residues: 1-302; Coverage: 100%)
Gene names: Uox, uaZ
Sequence domains: Uricase
Structure domains: Urate Oxidase;

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: DIAMOND BEAMLINE I02
Spacegroup: I222
Unit cell:
a: 79.93Å b: 95.08Å c: 104.06Å
α: 90° β: 90° γ: 90°
R R work R free
0.109 0.108 0.132
Expression system: Escherichia coli