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Literature summary extracted from
- Characterization of the activity of tyrosinase on betaxanthins derived from (R)-amino acids (2005), J. Agric. Food Chem., 53, 9207-9212.
Application
| EC Number | Application | Comment | Organism |
|---|---|---|---|
| 1.10.3.1 | additional information | tyrosinase is an important enzyme in the food industry because during the processing of fruits and vegetables any wounding may cause cell disruption and lead to quinone formation, the enzymatic browning implies a considerable economic loss in the commercial production of fruits and vegetables, the appearance of food and beverages may be affected, as may the taste and its nutritional value, often decreasing the quality of the final product | Agaricus bisporus |
| 1.14.18.1 | additional information | tyrosinase is an important enzyme in the food industry because during the processing of fruits and vegetables any wounding may cause cell disruption and lead to quinone formation, the enzymatic browning implies a considerable economic loss in the commercial production of fruits and vegetables, the appearance of food and beverages may be affected, as may the taste and its nutritional value, often decreasing the quality of the final product | Agaricus bisporus |
Metals/Ions
| EC Number | Metals/Ions | Comment | Organism | Structure |
|---|---|---|---|---|
| 1.10.3.1 | Cu2+ | copper-containing enzyme | Agaricus bisporus |  |
| 1.14.18.1 | Cu2+ | copper-containing enzyme | Agaricus bisporus | |
Natural Substrates/ Products (Substrates)
| EC Number | Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 1.10.3.1 | additional information | Agaricus bisporus | role of the enzyme in the biosynthetic scheme of betalains, overview | ? | - |
? | |
| 1.14.18.1 | additional information | Agaricus bisporus | role of the enzyme in the biosynthetic scheme of betalains, overview | ? | - |
? | |
Organism
| EC Number | Organism | UniProt | Comment | Textmining |
|---|---|---|---|---|
| 1.10.3.1 | Agaricus bisporus | - |
- |
- |
| 1.14.18.1 | Agaricus bisporus | - |
- |
- |
Source Tissue
| EC Number | Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|---|
| 1.10.3.1 | commercial preparation | - |
Agaricus bisporus | - |
| 1.14.18.1 | commercial preparation | - |
Agaricus bisporus | - |
Specific Activity [micromol/min/mg]
| EC Number | Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
|---|---|---|---|---|
| 1.10.3.1 | additional information | - |
- |
Agaricus bisporus |
| 1.14.18.1 | additional information | - |
- |
Agaricus bisporus |
Substrates and Products (Substrate)
| EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 1.10.3.1 | (R)-dopaxanthin + dehydroascorbic acid + O2 | (R)-dopaxanthin is a pigment, the reaction rate on the (R)-isomer of dopaxanthin is 1.9fold lower than that for the (S)-isomer | Agaricus bisporus | (R)-dopaxanthin quinone + L-ascorbic acid + H2O | quantitative product analysis | ? | |
| 1.10.3.1 | (R)-tyrosine-betaxanthin + L-DOPA + O2 | i.e. (R)-portulacaxanthin II, the activity of the enzyme is not restricted to betaxanthins derived from (S)-amino acids | Agaricus bisporus | (R)-dopaxanthin + dopaquinone + H2O | ( R)-dopaxanthin is a pigment, quantitative product analysis | ? | |
| 1.10.3.1 | additional information | role of the enzyme in the biosynthetic scheme of betalains, overview | Agaricus bisporus | ? | - |
? | |
| 1.10.3.1 | additional information | stereospecificity, and monophenolase and diphenolase activities and specificities dependent on conditions, overview | Agaricus bisporus | ? | - |
? | |
| 1.14.18.1 | (R)-dopaxanthin + dehydroascorbic acid + O2 | (R)-dopaxanthin is a pigment, the reaction rate on the (R)-isomer of dopaxanthin is 1.9fold lower than that for the (S)-isomer | Agaricus bisporus | (R)-dopaxanthin quinone + L-ascorbic acid + H2O | quantitative product analysis | ? | |
| 1.14.18.1 | (R)-tyrosine-betaxanthin + L-DOPA + O2 | i.e. (R)-portulacaxanthin II, the activity of the enzyme is not restricted to betaxanthins derived from (S)-amino acids | Agaricus bisporus | (R)-dopaxanthin + dopaquinone + H2O | (R)-dopaxanthin is a pigment, quantitative product analysis | ? | |
| 1.14.18.1 | additional information | role of the enzyme in the biosynthetic scheme of betalains, overview | Agaricus bisporus | ? | - |
? | |
| 1.14.18.1 | additional information | streospecificity, and monophenolase and diphenolase activities and specificities dependent on conditions, overview | Agaricus bisporus | ? | - |
? | |
Synonyms
| EC Number | Synonyms | Comment | Organism |
|---|---|---|---|
| 1.10.3.1 | diphenolase | - |
Agaricus bisporus |
| 1.10.3.1 | monophenol, o-diphenol:oxygen oxidoreductase | - |
Agaricus bisporus |
| 1.10.3.1 | More | cf. EC 1.14.18.1 | Agaricus bisporus |
| 1.10.3.1 | tyrosinase | - |
Agaricus bisporus |
| 1.14.18.1 | monophenol, o-diphenol:oxygen oxidoreductase | - |
Agaricus bisporus |
| 1.14.18.1 | monophenolase | - |
Agaricus bisporus |
| 1.14.18.1 | More | cf. EC 1.10.3.1 | Agaricus bisporus |
| 1.14.18.1 | tyrosinase | - |
Agaricus bisporus |
Temperature Optimum [°C]
| EC Number | Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
|---|---|---|---|---|
| 1.10.3.1 | 25 | - |
assay at | Agaricus bisporus |
| 1.14.18.1 | 25 | - |
assay at | Agaricus bisporus |
pH Optimum
| EC Number | pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|---|
| 1.10.3.1 | 6 | - |
assay at | Agaricus bisporus |
| 1.14.18.1 | 6 | - |
assay at | Agaricus bisporus |
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Release 2023.1 (January 2023)
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