CATH Classification

Domain Context

CATH Clusters

Superfamily Urate Oxidase;
Functional Family Uricase

Enzyme Information

1.7.3.3
Factor independent urate hydroxylase.
based on mapping to UniProt Q5FZI9
Urate + O(2) + H(2)O = 5-hydroxyisourate + H(2)O(2).
-!- Was previously thought to be a copper protein, but it is now known that the enzymes from soybean (Glycine max), the mold Aspergillus flavus and Bacillus subtilis contains no copper nor any other transition-metal ion. -!- The 5-hydroxyisourate formed decomposes spontaneously to form allantoin and CO(2), although there is an enzyme-catalyzed pathway in which EC 3.5.2.17 catalyzes the first step. -!- The enzyme is different from EC 1.14.13.113.

UniProtKB Entries (1)

Q5FZI9
URIC_CANLF
Canis lupus familiaris
Uricase

PDB Structure

PDB 4MB8
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Evolutionary history and metabolic insights of ancient mammalian uricases.
Kratzer, J.T., Lanaspa, M.A., Murphy, M.N., Cicerchi, C., Graves, C.L., Tipton, P.A., Ortlund, E.A., Johnson, R.J., Gaucher, E.A.
Proc.Natl.Acad.Sci.USA