Pteridine oxidase

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In enzymology, a pteridine oxidase (EC is an enzyme that catalyzes the chemical reaction

2-amino-4-hydroxypteridine + O2 2-amino-4,7-dihydroxypteridine + (?)

Thus, the two substrates of this enzyme are 2-amino-4-hydroxypteridine and O2, whereas its product is 2-amino-4,7-dihydroxypteridine.

This enzyme belongs to the family of oxidoreductases, specifically those acting on CH or CH2 group with oxygen as acceptor. The systematic name of this enzyme class is 2-amino-4-hydroxypteridine:oxygen oxidoreductase (7-hydroxylating).


  • IUBMB entry for
  • BRENDA references for (Recommended.)
  • PubMed references for
  • PubMed Central references for
  • Google Scholar references for
  • Yong Y-N (1980). "Detection of a pteridine oxidase in plants". Plant Sci. Lett. 18: 169&ndash, 175.

External links

The CAS registry number for this enzyme class is 74082-65-8.

Gene Ontology (GO) codes