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Synonyms
hemocyanin, polyphenol oxidase, phenoloxidase, polyphenoloxidase, diphenolase, catecholase, catechol oxidase, dopa oxidase, cresolase, o-diphenoloxidase,
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1,2-benzene: oxygen oxidoreductase
1,2-benzenediol:oxygen oxidoreductase
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dihydroxy-L-phenylalanine:oxygen oxidoreductase
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ibCO
sweet potato catechol oxidase
monophenol, o-diphenol: oxygen oxidoreductase
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monophenol, o-diphenol:oxygen oxidoreductase
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o-diphenol oxidoreductase
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o-diphenol: dioxygen oxidoreductase, dehydrogenating
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o-diphenol:oxygen oxidoreductase
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pyrocatechol oxidase
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1,2-benzene: oxygen oxidoreductase

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1,2-benzene: oxygen oxidoreductase
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AoCO4

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catalase-phenol oxidase

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bifunctional enzyme
catalase-phenol oxidase
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bifunctional enzyme
catalase-phenol oxidase
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bifunctional enzyme
catechol oxidase

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catecholase

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catecholase
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mushroom tyrosinase shows catecholase and creolase activities
CATPO

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Diphenol oxidase

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diphenolase

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hemocyanin

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hemocyanin
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behaves as a catecholoxidase and shows phenoloxidase activity in vitro
mettyrosinase

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o-diphenolase

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oxytyrosinase

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phenol oxidase

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phenol oxidase
Mycelia sterilia
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phenol oxidase
Mycelia sterilia IBR 35219/2
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phenoloxidase

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polyphenol oxidase

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polyphenol oxidase
Ferula sp.
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polyphenol oxidase
Physalis peruviana Colombian ecotype
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polyphenoloxidase

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polyphenoloxidase
Coffea guarini
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PPO

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PPO
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from Coker 312, an embryogenic cultivar
PPO
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from R405-2000, an nonembryogenic cultivar
PPO
Physalis peruviana Colombian ecotype
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tyrosinase

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additional information

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cf. 1.14.18.1
additional information
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cf. 1.14.18.1
additional information
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cf. 1.14.18.1
additional information
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cf. 1.14.18.1
additional information
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cf. EC 1.14.18.1
additional information
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cf. EC 1.14.18.1
additional information
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cf. EC 1.14.18.1
additional information
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cf. EC 1.14.18.1
additional information
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cf. EC 1.2.3.4
additional information
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cf. EC 1.14.18.1
additional information
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cf. EC 1.14.18.1
additional information
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cf. EC 1.14.18.1
additional information
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cf. EC 1.14.18.1
additional information
Coffea guarini
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cf. EC 1.14.18.1
additional information
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cf. EC 1.14.18.1
additional information
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cf. EC 1.14.18.1
additional information
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cf. EC 1.14.18.1
additional information
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cf. EC 1.14.18.1
additional information
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cf. EC 1.14.18.1
additional information
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cf. EC 1.14.18.1
additional information
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cf. 1.14.18.1
additional information
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cf. 1.14.18.1
additional information
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cf. 1.14.18.1
additional information
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cf. EC 1.14.18.1
additional information
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cf. EC 1.14.18.1
additional information
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cf. EC 1.14.18.1
additional information
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cf. EC 1.14.18.1
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(+)-catechin hydrate + O2
?
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?
(-)-catechin + O2
?
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enzyme activity relative to 4-methylcatechol: 0.77%
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?
(-)-epigallocatechin + O2
?
(-)-epigallocatechin gallate + O2
?
(R)-dopaxanthin + dehydroascorbic acid + O2
(R)-dopaxanthin quinone + L-ascorbic acid + H2O
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(R)-dopaxanthin is a pigment, the reaction rate on the (R)-isomer of dopaxanthin is 1.9fold lower than that for the (S)-isomer
quantitative product analysis
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?
(R)-tyrosine-betaxanthin + L-DOPA + O2
(R)-dopaxanthin + dopaquinone + H2O
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i.e. (R)-portulacaxanthin II, the activity of the enzyme is not restricted to betaxanthins derived from (S)-amino acids
( R)-dopaxanthin is a pigment, quantitative product analysis
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?
1-butylcatechol + O2
?
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?
1-tert-butyl-catechol + O2
?
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?
2 3-methylcatechol + O2
2 3-methyl-1,2-benzoquinone + 2 H2O
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?
2 4-methylcatechol + O2
2 4-methyl-1,2-benzoquinone
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?
2 4-methylcatechol + O2
2 4-methyl-1,2-benzoquinone + 2 H2O
2 catechol + O2
2 1,2-benzoquinone + 2 H2O
2 D-isoproterenol + O2
2 4-[(1S)-1-hydroxy-2-[(propan-2-yl)amino]ethyl]cyclohexa-3,5-diene-1,2-dione + 2 H2O
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-
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r
2 dopamine + O2
2 4-(2-aminoethyl)-1,2-benzoquinone + 2 H2O
2 o-diphenol + O2
2 o-quinone + 2 H2O
2,3,4-trihydroxybenzoic acid + O2
?
2,3-dihydroxybenzoic acid + O2
?
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?
2-methylhydroquinone + O2
?
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low activity
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?
3,4,5-trihydroxy-L-phenylalanine + O2
?
3,4,5-trihydroxybenzoic acid + O2
?
3,4-dihydroxyhydrocinnamic acid + O2
?
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?
3,4-dihydroxyphenyl acetic acid + O2
?
3,4-dihydroxyphenyl propionic acid + O2
?
3,4-dihydroxyphenylacetic acid + O2
(3,4-dioxocyclohexa-1,5-dien-1-yl)acetic acid + H2O
3,4-dihydroxyphenylacetic acid + O2
?
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?
3,5-di-tert-butyl catechol + O2
3,5-di-tert-butyl-o-quinone
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?
3,5-di-tert-butylcatechol + O2
3,5-di-tert-butyl-o-benzoquinone + H2O
3-(3,4-dihydroxyphenyl)-L-alanine + O2
?
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enzyme activity relative to 4-methylcatechol: 1.15%
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?
4-methylcatechol + O2
4-methyl-1,2-benzoquinone
4-methylcatechol + O2
4-methyl-1,2-benzoquinone + H2O
4-methylcatechol + O2
4-methyl-o-benzoquinone
4-O-caffeoylquinic acid + O2
?
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?
4-tert-butylcatechol + O2
4-tert-butyl-1,2-benzoquinone + H2O
4-tert-butylcatechol + O2
?
4-[(4-methylbenzol)azo]-1,2-benzenediol + O2
?
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?
5-caffeoyl quinic acid + O2
?
aminophenol + O2
?
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?
aniline + O2
?
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enzyme shows also activity after 24 h incubation
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?
betanidin + O2
betanidin-quinone + H2O
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the structural unit of the violet betacyanins from Lampranthus productus flowers, the reacion is reversible by ascorbic acid addition at pH 5.0 and 4°C
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?
caffeic acid + 1/2 O2
caffeoyl quinone + H2O
caffeic acid + O2
caffeoyl quinone + H2O
catechol + 1/2 O2
1,2-benzoquinone + H2O
catechol + O2
o-benzoquinone + H2O
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?
cumaric acid + O2
?
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?
D-2-methyl-3,4-dihydroxyphenylalanine + O2
2-methyldopaquinone + H2O
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r
D-dopa + 1/2 O2
D-dopaquinone + H2O
D-isoproterenol + O2
?
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?
dihydrocaffeic acid + O2
?
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?
dihydroxyphenylalanine + O2
dihydroxyphenylalanine quinone + H2O
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?
DL-2-methyl-3,4-dihydroxyphenylalanine + O2
2-methyldopaquinone + H2O
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the L-isomer is preferred
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?
DL-DOPA + O2
dopaquinone + H2O
dopamine + 1/2 O2
dopamine quinone + H2O
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?
dopamine + O2
4-(2-aminoethyl)-1,2-benzoquinone + 2 H2O
dopamine + O2
dopaminequinone + H2O
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?
ferulic acid + O2
?
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?
guaiacol + O2
?
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?
hydroquinone + O2
?
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low activity
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?
L-2-methyl-3,4-dihydroxyphenylalanine + O2
2-methyldopaquinone + H2O
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r
L-3,4-dihydroxyphenylalanine methyl ester + 1/2 O2
L-dopaquinone methyl ester + H2O
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?
L-3-hydroxytyrosine + L-dopa + O2
?
L-adrenaline + O2
?
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?
L-catechin + O2
?
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?
L-dihydroxyphenylalanine + O2
L-dopaquinone + H2O
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L-dopa
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?
L-dopa + 1/2 O2
L-dopaquinone + H2O
L-dopa + O2
dopachrome + H2O
L-DOPA + O2
dopaquinone + H2O
L-Dopa + O2
L-dopaquinone + H2O