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1.10.3.1: catechol oxidase

This is an abbreviated version!
For detailed information about catechol oxidase, go to the full flat file.

Word Map on EC 1.10.3.1

Reaction

2 catechol +

O2
= 2 1,2-benzoquinone + 2 H2O

Synonyms

1,2-benzene: oxygen oxidoreductase, 1,2-benzenediol:oxygen oxidoreductase, AoCO4, catalase-phenol oxidase, catechol oxidase, catecholase, catecholoxidase, CATPO, CO, copper-S100B, cresolase, dihydroxy-L-phenylalanine:oxygen oxidoreductase, Diphenol oxidase, diphenolase, dopa oxidase, germin-like protein, GLP, hemocyanin, ibCO, LsPPO, mettyrosinase, monophenol, o-diphenol: oxygen oxidoreductase, monophenol, o-diphenol:oxygen oxidoreductase, More, MppO, o-diphenol oxidoreductase, o-diphenol: dioxygen oxidoreductase, dehydrogenating, o-diphenol:oxygen oxidoreductase, o-diphenolase, o-diphenoloxidase, oxytyrosinase, phenol oxidase, phenolase, phenoloxidase, polyphenol oxidase, polyphenoloxidase, PPO, PPO 1, PPO 2, PPO II, PPO-6, pyrocatechol oxidase, TYR3, tyrosinase

ECTree

     1 Oxidoreductases
         1.10 Acting on diphenols and related substances as donors
             1.10.3 With oxygen as acceptor
                1.10.3.1 catechol oxidase

KI Value

KI Value on EC 1.10.3.1 - catechol oxidase

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Ki VALUE [mM]
INHIBITOR
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
0.0632 - 0.138
2-mercaptoethanol
2.3
3,4,5-Trihydroxybenzoic acid
0.0075
ascorbic acid
-
-
0.0031
beta-mercaptoethanol
-
-
0.32
citral
-
pH 6.8, 35°C
19.5
cysteine
-
-
29.64
dopamine
-
at substrate concentrations above 4 mM, substrate inhibition is observed and the data are fitted to a simple model for substrate inhibition. KM, kcat and KI are obtained for the inhibitory binding site
0.00067
glutathione
-
-
0.0119 - 7.75
kojic acid
0.0718 - 0.0815
L-ascorbic acid
0.0145
L-cysteine
-
-
0.116 - 0.126
L-cysteine chloride
0.0477
L-mimosine
-
with dopamine as a substrate
1.75
L-tyrosine
-
-
0.0055
Metabisulfite
-
-
2.78
myrcene
-
pH 6.8, 35°C
0.0000743
oxalic acid
-
-
0.0267
p-aminobenzenesulfonamide
-
-
0.088
quercetin
-
pH 6.8, 30°C
0.0454 - 0.0645
Sodium diethyl dithiocarbamate
0.0259 - 0.119
Sodium metabisulfite
0.0214
syringic acid
-
-
0.00058
tropolone
-
-
0.2782
tyramine
-
with dopamine as a substrate
additional information
additional information
-