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
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1.10.3.1
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limpet
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keyhole
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brown
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catalase
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lymphocyte
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dismutase
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hemolymph
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igm
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humoral
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larvae
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shrimp
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mushroom
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haptens
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vannamei
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sod
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antigen-specific
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melanization
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arthropod
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haemocyte
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melanin
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crab
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litopenaeus
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idiotype
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o-quinones
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crustacean
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hepatopancreas
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chlorogenic
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delayed-type
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ammonia-lyase
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l-dopa
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postharvest
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laccase
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shelf
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molluscan
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anti-idiotypic
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dinuclear
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gastropod
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crayfish
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nutrition
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pyrogallol
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agriculture
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drug development
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lobster
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alginolyticus
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entomopathogenic
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copper-binding
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antiferromagnetic
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penaeus
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kojic
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copper-containing
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pomatia
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food industry
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toxoid
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limulus
- 1.10.3.1
-
limpet
-
keyhole
- brown
- catalase
- lymphocyte
- dismutase
- hemolymph
- igm
-
humoral
- larvae
- shrimp
- mushroom
-
haptens
- vannamei
- sod
-
antigen-specific
-
melanization
-
arthropod
- haemocyte
- melanin
- crab
- litopenaeus
-
idiotype
- o-quinones
-
crustacean
- hepatopancreas
-
chlorogenic
-
delayed-type
-
ammonia-lyase
- l-dopa
-
postharvest
- laccase
-
shelf
-
molluscan
-
anti-idiotypic
-
dinuclear
-
gastropod
- crayfish
- nutrition
- pyrogallol
- agriculture
- drug development
- lobster
- alginolyticus
-
entomopathogenic
-
copper-binding
-
antiferromagnetic
- penaeus
-
kojic
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copper-containing
- pomatia
- food industry
- toxoid
- limulus
Reaction
2 catechol
+
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
1.10.3.1 catechol oxidaseAdvanced search results
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Natural Substrates Products on EC 1.10.3.1 - catechol oxidase
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NATURAL SUBSTRATE 
NATURAL PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate)
(Substrate)
LITERATURE
(Substrate)
(Substrate)
COMMENTARY
(Product)
(Product)
LITERATURE
(Product)
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
r=reversible
ir=irreversible
?=not specified
dihydroxyphenylalanine + O2
dihydroxyphenylalanine quinone + H2O
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?
2 4-methylcatechol + O2
2 4-methyl-1,2-benzoquinone + 2 H2O
Physalis peruviana Colombian ecotype
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?
chlorogenic acid + O2
?
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formation of a highly reactive o-quinone intermediate which then could interact with NH2 groups of lysine, SCH3 groups of methionines and indole rings of tryptophan in nucleophilic addition and in polymerization reactions, the so-called browning and greening reactions
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-
?
L-tyrosine + L-dopa + O2
L-dopa + dopaquinone + H2O
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pathway of melanin biosynthesis, detailed overview
cytotoxicity of L-DOPA
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?
additional information
?
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role of the enzyme in the biosynthetic scheme of betalains, overview
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?
additional information
?
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extremely low levels of activity suggest that this protein likely plays no direct metabolic role in the biodegradation of catecholamines
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?
additional information
?
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mechanical damage by Hemileia vastatrix fungus, the causal agent of the leaf orange rust disease, inoculation and Leucoptera coffeella, the coffee leaf miner, infestation caused different responses in PPO activity in different Coffea species, level of damage or resistance, overview
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?
additional information
?
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mechanical damage by Hemileia vastatrix fungus, the causal agent of the leaf orange rust disease, inoculation and Leucoptera coffeella, the coffee leaf miner, infestation caused different responses in PPO activity in different Coffea species, level of damage or resistance, overview
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?
additional information
?
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mechanical damage by Hemileia vastatrix fungus, the causal agent of the leaf orange rust disease, inoculation and Leucoptera coffeella, the coffee leaf miner, infestation caused different responses in PPO activity in different Coffea species, level of damage or resistance, overview
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-
?
additional information
?
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-
mechanical damage by Hemileia vastatrix fungus, the causal agent of the leaf orange rust disease, inoculation and Leucoptera coffeella, the coffee leaf miner, infestation caused different responses in PPO activity in different Coffea species, level of damage or resistance, overview
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?
additional information
?
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Coffea guarini
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mechanical damage by Hemileia vastatrix fungus, the causal agent of the leaf orange rust disease, inoculation and Leucoptera coffeella, the coffee leaf miner, infestation caused different responses in PPO activity in different Coffea species, level of damage or resistance, overview
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?
additional information
?
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-
mechanical damage by Hemileia vastatrix fungus, the causal agent of the leaf orange rust disease, inoculation and Leucoptera coffeella, the coffee leaf miner, infestation caused different responses in PPO activity in different Coffea species, level of damage or resistance, overview
-
-
?
additional information
?
-
-
mechanical damage by Hemileia vastatrix fungus, the causal agent of the leaf orange rust disease, inoculation and Leucoptera coffeella, the coffee leaf miner, infestation caused different responses in PPO activity in different Coffea species, level of damage or resistance, overview
-
-
?
additional information
?
-
-
mechanical damage by Hemileia vastatrix fungus, the causal agent of the leaf orange rust disease, inoculation and Leucoptera coffeella, the coffee leaf miner, infestation caused different responses in PPO activity in different Coffea species, level of damage or resistance, overview
-
-
?
additional information
?
-
-
mechanical damage by Hemileia vastatrix fungus, the causal agent of the leaf orange rust disease, inoculation and Leucoptera coffeella, the coffee leaf miner, infestation caused different responses in PPO activity in different Coffea species, level of damage or resistance, overview
-
-
?
additional information
?
-
-
mechanical damage by Hemileia vastatrix fungus, the causal agent of the leaf orange rust disease, inoculation and Leucoptera coffeella, the coffee leaf miner, infestation caused different responses in PPO activity in different Coffea species, level of damage or resistance, overview
-
-
?
additional information
?
-
-
mechanical damage by Hemileia vastatrix fungus, the causal agent of the leaf orange rust disease, inoculation and Leucoptera coffeella, the coffee leaf miner, infestation caused different responses in PPO activity in different Coffea species, level of damage or resistance, overview
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-
?
additional information
?
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Ferula sp.
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polyphenol oxidase is a major enzyme responsible for the browning reaction in damaged plant tissues and fruits
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?
additional information
?
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PPO oxidizes o-diphenolic compounds to the corresponding o-quinones in the presence of oxygen, subsequently the o-quinones polymerize with other o-quinones, proteins, amino acids etc., resulting in the formation of brown complexes, the enzyme is one of the main enzymes responsible for quality loss in strawberry taste due to phenolic degradation
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?
additional information
?
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tyrosinase is known to be a key enzyme in melanin biosynthesis, involved in determining the color of mammalian skin and hair, various dermatological disorders, such as melasma, age spots and sites of actinic damage, arise from the accumulation of an excessive level of epidermal pigmentation
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?
additional information
?
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the enzyme is considered as defence oxidative enzyme, is vital the physiological defence strategy adapted by plants to insect herbivory and pathogen attack
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?
additional information
?
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the enzyme catalyzes the oxidation of o-phenolic substrates to o-quinones, which are subsequently polymerized to dark-coloured pigments. Polyphenoloxidase is considered to be the main contributor to browning discolouration and darkening in fruits and vegetables
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?
additional information
?
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the enzyme plays a role in enzymatic browning, rapid discolouration of leaf, stem and root tissue after injury and strong pigmentation of tissue extracts, PPO and phenolic compounds could be an important part of the plants defence system against pests and diseases, including root parasitic nematodes, e.g. Radopholus similis
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?
additional information
?
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PPO II inhibits cultures of Escherichia coli and it accumulates on the wounded sites of tobacco leaves indicating that it may act as a defense role in plat defense system
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?
additional information
?
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PPO activity increases in the transition from the vegetative stage to the generative stage
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?
additional information
?
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expressionlevels of polyphenol oxidase activity exhibiting enzymes in the organism, overview
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?
additional information
?
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PPO activity is associated with color changes associated with browning and lycopene degradation, the commercial variety Naomi is more susceptible to enzymatic browning than the local varieties Pizzutello, Rosa Maletto and PO228, due to higher PPO activity levels, lycopene is an antioxidant agent that reconstitutes the polyphenols oxidized by the action of PPO
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?
additional information
?
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the enzyme catalyzes the oxidation of ortho-diphenols to the corresponding quinones
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?
additional information
?
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the enzyme catalyzes the oxidation of ortho-diphenols to the corresponding quinones
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?
