3-hydroxyanthranilate oxidase

In enzymology, a 3-hydroxyanthranilate oxidase (EC 1.10.3.5) (also called 3-HAO) is an enzyme that catalyzes the chemical reaction:[1]

3-hydroxyanthranilate + O2 6-imino-5-oxocyclohexa-1,3-dienecarboxylate + H2O2
3-hydroxyanthranilate oxidase
Identifiers
EC number1.10.3.5
CAS number37256-53-4
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO

Thus, the two substrates of this enzyme are 3-hydroxyanthranilate and O2, whereas its two products are 6-imino-5-oxocyclohexa-1,3-dienecarboxylate and H2O2.

This enzyme belongs to the family of oxidoreductases, specifically those acting on diphenols and related substances as donor with oxygen as acceptor. The systematic name of this enzyme class is 3-hydroxyanthranilate:oxygen oxidoreductase. This enzyme is also called 3-hydroxyanthranilic acid oxidase.

References

  1. Vécsei, L; Szalárdy, L; Fülöp, F; Toldi, J (January 2013). "Kynurenines in the CNS: recent advances and new questions". Nature Reviews. Drug Discovery. 12 (1): 64–82. doi:10.1038/nrd3793. PMID 23237916.
  • Morgan LR Jr, Weimorts DM, Aubert CC (1965). "Oxidation Of 3-hydroxyanthranilic acid by a soluble liver fraction from poikilothermic vertebrates". Biochim. Biophys. Acta. 100: 393–402. doi:10.1016/0304-4165(65)90008-5. PMID 14347936.
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