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Literature summary extracted from

  • Mayer, A.M.; Harel, E.
    Polyphenol oxidases in plants (1979), Phytochemistry, 18, 193-215.
No PubMed abstract available

Activating Compound

EC Number Activating Compound Comment Organism Structure
1.14.18.1 acid activation by short exposure to pH 3.0-3.5 Vicia faba
1.14.18.1 alkali activation by short exposure to pH 11.5 Vicia faba

Inhibitors

EC Number Inhibitors Comment Organism Structure
1.14.18.1 CN-
-
 Neurospora crassa

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
1.14.18.1 copper 2 copper atoms per functional unit of 42000 Da Neurospora crassa

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
1.14.18.1 30000
-
 4 * 30000 Mushroom
1.14.18.1 116000 128000
-
 Mushroom

Organism

EC Number Organism UniProt Comment Textmining
1.10.3.2 Embryophyta
-
 overview
-
1.14.18.1 Mushroom
-
-
-
1.14.18.1 Neurospora crassa
-
-
-
1.14.18.1 Vicia faba
-
-
-

Reaction

EC Number Reaction Comment Organism Reaction ID
1.10.3.2 4 benzenediol + O2 = 4 benzosemiquinone + 2 H2O discussion of mechanism Embryophyta
a
1.10.3.2 4 benzenediol + O2 = 4 benzosemiquinone + 2 H2O nonenzymatic disproportionation of 2 semiquinones to quinone and quinol Embryophyta
a

Subunits

EC Number Subunits Comment Organism
1.14.18.1 tetramer 4 * 30000 Mushroom