In
enzymology
Enzymes () are proteins that act as biological catalysts by accelerating chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different molecules known as products. A ...
, a 3-hydroxyanthranilate oxidase () (also called 3-HAO) is an
enzyme that
catalyzes
Catalysis () is the process of increasing the rate of a chemical reaction by adding a substance known as a catalyst (). Catalysts are not consumed in the reaction and remain unchanged after it. If the reaction is rapid and the catalyst recyc ...
the
chemical reaction:
:3-hydroxyanthranilate + O
2 6-imino-5-oxocyclohexa-1,3-dienecarboxylate + H
2O
2
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
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EC 1.10.3
Enzymes of unknown structure