L-ascorbate peroxidase

In enzymology, a L-ascorbate peroxidase is an enzyme that catalyzes the chemical reaction


 * L-ascorbate + H2O2 $$\rightleftharpoons$$ dehydroascorbate + 2 H2O

Thus, the two substrates of this enzyme are L-ascorbate and H2O2, whereas its two products are dehydroascorbate and H2O.

This enzyme belongs to the family of oxidoreductases, specifically those acting on a peroxide as acceptor (peroxidases). The systematic name of this enzyme class is L-ascorbate:hydrogen-peroxide oxidoreductase. Other names in common use include L-ascorbic acid peroxidase, L-ascorbic acid-specific peroxidase, ascorbate peroxidase, and ascorbic acid peroxidase. This enzyme participates in ascorbate and aldarate metabolism.

Structural studies
As of late 2007, 12 structures have been solved for this class of enzymes, with PDB accession codes, , , , , , , , , , , and.