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Ascorbate peroxidase

 

 
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Ascorbate peroxidase
 
 
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Ascorbate peroxidases (or APX1) are enzymes that detoxify peroxides such as hydrogen peroxide
Hydrogen peroxide

Hydrogen peroxide is a very pale blue liquid which appears colorless in a dilute solution, slightly more viscous than water. It is a weak acid....
 using ascorbate as a substrate. The reaction they catalyse is the transfer of electrons from ascorbate to a peroxide, producing dehydroascorbate and water as products.








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Ascorbate peroxidases (or APX1) are enzymes that detoxify peroxides such as hydrogen peroxide
Hydrogen peroxide

Hydrogen peroxide is a very pale blue liquid which appears colorless in a dilute solution, slightly more viscous than water. It is a weak acid....
 using ascorbate as a substrate. The reaction they catalyse is the transfer of electrons from ascorbate to a peroxide, producing dehydroascorbate and water as products.

Ascorbate + Hydrogen peroxide ? Dehydroascorbate + Water

C6H8O6 + H2O2 ? C6H6O6 + 2 H2O

These enzymes are commonly hemoproteins and the haem cofactor is the site of the oxidation-reduction reaction shown above.

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