4-hydroxymandelate oxidase

4-hydroxymandelate oxidase

In enzymology, a 4-hydroxymandelate oxidase is an enzyme that catalyzes the chemical reaction

(S)-2-hydroxy-2-(4-hydroxyphenyl)acetate + O2 rightleftharpoons 4-hydroxybenzaldehyde + CO2 + H2O2

Thus, the two substrates of this enzyme are (S)-2-hydroxy-2-(4-hydroxyphenyl)acetate and O2, whereas its 3 products are 4-hydroxybenzaldehyde, CO2, and H2O2.

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with oxygen as acceptor. The systematic name of this enzyme class is (S)-2-hydroxy-2-(4-hydroxyphenyl)acetate:oxygen 1-oxidoreductase. This enzyme is also called L-4-hydroxymandelate oxidase (decarboxylating). It has 2 cofactors: FAD, and Manganese.


  • Bhat SG, Vaidyanathan CS "Purification and properties of L-4-hydroxymandelate oxidase from Pseudomonas convexa". Eur. J. Biochem. 68 323–31.

External links

The CAS registry number for this enzyme class is .

Gene Ontology (GO) codes

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