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Information on EC 1.11.1.11 - L-ascorbate peroxidase

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EC Tree
     1 Oxidoreductases
         1.11 Acting on a peroxide as acceptor
             1.11.1 Peroxidases
                1.11.1.11 L-ascorbate peroxidase
IUBMB Comments
A heme protein. Oxidizes ascorbate and low molecular weight aromatic substrates. The monodehydroascorbate radical produced is either directly reduced back to ascorbate by EC 1.6.5.4 [monodehydroascorbate reductase (NADH)] or undergoes non-enzymic disproportionation to ascorbate and dehydroascorbate.
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Word Map
The enzyme appears in viruses and cellular organisms
Reaction Schemes
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Synonyms
ascorbate peroxidase, cytosolic ascorbate peroxidase, apex2, lmapx, osapx8, stromal ascorbate peroxidase, thylakoid-bound ascorbate peroxidase, ascorbate peroxidase 1, stromal apx, osapx2, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
2 L-ascorbate + H2O2 + 2 H+ = 2 monodehydroascorbate + 2 H2O
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2 L-ascorbate + H2O2 + 2 H+ = L-ascorbate + L-dehydroascorbate + 2 H2O
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overall reaction
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2 monodehydroascorbate = L-ascorbate + L-dehydroascorbate
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spontaneous
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