Ascorbate peroxidase

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Function

Ascorbate peroxidase (APX) catalyzes the conversion of ascorbate and hydrogen peroxide to dehydroascorbate and water thus detoxifying hydrogen peroxide. APX is involved in the glutathione-ascorbate cycle. APX is accumulated in plants in response to heat and drought stress. APX contains a heme group.

Relevance

APX is part of plants antioxidant defense. APX converts H2O2 to water using ascorbate as an electron donor.

3D structures of ascorbate peroxidase

Updated on 05-November-2015

Proteopedia Page Contributors and Editors (what is this?)

Michal Harel, Alexander Berchansky

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