CATH Classification

Domain Context

CATH Clusters

Superfamily Transthyretin/hydroxyisourate hydrolase domain
Functional Family

Enzyme Information

3.5.2.17
Hydroxyisourate hydrolase.
based on mapping to UniProt O32142
5-hydroxyisourate + H(2)O = 5-hydroxy-2-oxo-4-ureido-2,5-dihydro- 1H-imidazole-5-carboxylate.
-!- The reaction is the first stage in the conversion of 5-hydroxyisourate into (S)-allantoin. -!- This reaction will also occur spontaneously, but more slowly.

UniProtKB Entries (1)

O32142
HIUH_BACSU
Bacillus subtilis subsp. subtilis str. 168
5-hydroxyisourate hydrolase

PDB Structure

PDB 2H0J
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
Structural and functional analysis of PucM, a hydrolase in the ureide pathway and a member of the transthyretin-related protein family.
Jung, D.-K., Lee, Y., Park, S.G., Park, B.C., Kim, G.-H., Rhee, S.
Proc.Natl.Acad.Sci.Usa