Ascorbate peroxidase
Ascorbate peroxidase (or L-ascorbate peroxidase, APX or APEX) (EC 1.11.1.11) is an enzyme that catalyzes the overall chemical reaction: It is a member of the family of heme-containing peroxidases. Heme peroxidases catalyse the hydrogen peroxide-dependent oxidation of a wide range of different, usually organic, substrates in biology.