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

Reaction

4 L-ascorbate +

O2
= 4 monodehydroascorbate + 2 H2O

Synonyms

AA oxidase, AA-ox, AAO, AAO1, AAO2, AAO3, Aao4, 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

     1 Oxidoreductases
         1.10 Acting on diphenols and related substances as donors
             1.10.3 With oxygen as acceptor
                1.10.3.3 L-ascorbate oxidase

Activating Compound

Activating Compound on EC 1.10.3.3 - L-ascorbate oxidase

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ACTIVATING COMPOUND
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
2,2'-bipyridyl
-
stimulation
ascorbate
Cucurbita pepo condensa
-
treatment with excess ascorbate at pH 4.85 to pH 5.5 in the presence of citrate and chloride and in the absence of O2, 9fold increase in maximal velocity
Cd2+
-
cadmium-induced inhibition of apoplastic isozyme in barley roots, cationic isozyme C1 is activated by Cd2+
CuCl2
-
1 mM, 2fold activation
ethanol
-
stimulation
far red light
-
7fold increase in activity after exposure to far red light for 36 h, suggesting post-translational control of activity by phytochrome
-
H2O2
-
stimulation at low concentration, 0.056 mM
iodoacetate
-
stimulation
light
-
o-phenanthroline
-
stimulation
p-chloromercuribenzoate
-
stimulation
additional information
-