1.10.3.3: L-ascorbate oxidase
This is an abbreviated version!
For detailed information about L-ascorbate oxidase, go to the full flat file.
Word Map on EC 1.10.3.3
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1.10.3.3
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copper
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dehydroascorbic
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electrode
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laccase
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oxidases
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ceruloplasmin
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zucchini
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cucurbita
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cucumber
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amperometric
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trinuclear
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apoplastic
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monodehydroascorbate
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squash
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multi-copper
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ascorbate-dependent
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copper-containing
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plastocyanin
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pumpkin
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azurins
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ascorbyl
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ascorbate-glutathione
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myrothecium
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vernicifera
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ferroxidase
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agriculture
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medicine
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analysis
- 1.10.3.3
- copper
-
dehydroascorbic
-
electrode
- laccase
- oxidases
- ceruloplasmin
- zucchini
- cucurbita
- cucumber
-
amperometric
-
trinuclear
- apoplastic
- monodehydroascorbate
- squash
-
multi-copper
-
ascorbate-dependent
-
copper-containing
- plastocyanin
- pumpkin
- azurins
-
ascorbyl
-
ascorbate-glutathione
- myrothecium
- vernicifera
- ferroxidase
- agriculture
- medicine
- analysis
Reaction
4 L-ascorbate + = 4 monodehydroascorbate + 2 H2O
Synonyms
AA oxidase, AA-ox, AAO, AAO1, AAO2, AAO3, Aao4, Af_AO1, AO1, AO4, AOase, ASC oxidase, ascorbase, ascorbate dehydrogenase, ascorbate oxidase, ascorbic acid oxidase, ascorbic oxidase, ASOM, L-ascorbate:O2 oxidoreductase, L-ascorbic acid oxidase, oxidase, ascorbate
ECTree
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Natural Substrates Products
Natural Substrates Products on EC 1.10.3.3 - L-ascorbate oxidase
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REACTION DIAGRAM
2 L-ascorbate + O2 + 4 H+
2 monodehydroascorbate + 2 H2O
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formation of free radicals during the oxidation reaction by ascorbate oxidase
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additional information
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cell wall-localized enzyme that catalyses the oxidation of ascorbate to the unstable radical monodehydroascorbate, which rapidly disproportionates to yield dehydroascorbate and ascorbate, and thus contributes to the regulation of the ascorbic acid redox state regulating the cell redox status
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2 L-dehydroascorbate + 2 H2O
Cucurbita sp.
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enzyme may play a key role in the regulation of cell expansion
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2 L-ascorbate + O2
2 L-dehydroascorbate + 2 H2O
Cucurbita sp.
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possibly a kind of pathogenesis-related protein
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2 L-ascorbic acid + O2
2 L-dehydroascorbic acid + 2 H2O
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role of AO is regulation of cell division through controlled apoplastic Asc levels
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2 L-ascorbic acid + O2
2 L-dehydroascorbic acid + 2 H2O
the gene expression is transcriptionally regulated during fruit development and in response to hormonal cues associated with the control of cell growth and the stress response
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2 L-ascorbic acid + O2
2 L-dehydroascorbic acid + 2 H2O
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metabolic regulation, overview
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2 L-ascorbic acid + O2
2 L-dehydroascorbic acid + 2 H2O
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the enzyme activity is up- or down-regulated in response to oxygen availability
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2 L-ascorbic acid + O2
2 L-dehydroascorbic acid + 2 H2O
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the enzyme activity is up- or down-regulated in response to oxygen availability
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?
2 L-ascorbic acid + O2
2 L-dehydroascorbic acid + 2 H2O
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the enzyme activity is up- or down-regulated in response to oxygen availability
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?
4 L-ascorbate + O2
4 monodehydroascorbate + 2 H2O
Cucurbita sp.
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the enzyme is involved in catalyzing the oxidation of apoplastic ascorbic acid to dehydroascorbic acid
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4 L-ascorbate + O2
4 monodehydroascorbate + 2 H2O
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