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Literature summary for 1.10.3.3 extracted from

  • Dayan, J.; Dawson, C.R.
    Substrate specificity of ascorbate oxidase (1976), Biochem. Biophys. Res. Commun., 73, 451-458.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
cyanide 0.001 mM, 50% inhibition of ascorbic acid and 2,6-dichloroindophenol oxidation Cucurbita pepo condensa
diethyldithiocarbamate 0.0001 mM, 50% inhibition of ascorbic acid and 2,6-dichloroindophenol oxidation Cucurbita pepo condensa

Organism

Organism UniProt Comment Textmining
Cucurbita pepo condensa
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Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2 L-ascorbate + O2 substrate specificity: overview Cucurbita pepo condensa 2 L-dehydroascorbate + 2 H2O
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?
2 L-ascorbate + O2 anionic form of the substrate is an important requirement of the enzyme specificity Cucurbita pepo condensa 2 L-dehydroascorbate + 2 H2O
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?
2 L-ascorbate + O2 no oxidation of hydroquinone Cucurbita pepo condensa 2 L-dehydroascorbate + 2 H2O
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?
2,5-dichlorohydroquinone + O2 oxidation rate approx. 1/12 that of ascorbic acid, pH 5.7 Cucurbita pepo condensa 2,5-dichloroquinone + H2O
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?
2,6-dichlorohydroquinone + O2 oxidation rate approx. 1/12 that of ascorbic acid, pH 5.7 Cucurbita pepo condensa 2,6-dichloroquinone + H2O
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?
hydroxyhydroquinone + O2 oxidation rate approx. 1/12 that of ascorbic acid, pH 5.7 Cucurbita pepo condensa hydroxyquinone + H2O
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?
leuco 2,6-dichloroindophenol + O2 oxidation to the blue quinoid dye at pH 5.7 Cucurbita pepo condensa oxidized leuco 2,6-dichloroindophenol + H2O
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?