Inhibitors | Comment | Organism | Structure |
---|---|---|---|
epigallocatechin-3-O-gallate | - |
Malus sp. | |
gallocatechin gallate | - |
Malus sp. | |
L-cysteine | - |
Malus sp. | |
ZnSO4 | - |
Malus sp. |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
40000 | - |
x * 40000, SDS-PAGE | Malus sp. |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Malus sp. | - |
Fuji apple | - |
Purification (Comment) | Organism |
---|---|
native enzyme by anion exchange chromatography, ammonium sulfate fractionation, hydrophobic interaction chromatography, and gel filtration | Malus sp. |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
fruit | - |
Malus sp. | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
catechin + O2 | - |
Malus sp. | ? | - |
? | |
catechol + 1/2 O2 | - |
Malus sp. | 1,2-benzoquinone + H2O | - |
? | |
chlorogenic acid + O2 | preferred substrate | Malus sp. | ? | - |
? | |
additional information | substrate specificity, overview, no activity with hydroquinic acid, resorcinol, and tyrosine | Malus sp. | ? | - |
? |
Subunits | Comment | Organism |
---|---|---|
? | x * 40000, SDS-PAGE | Malus sp. |
Synonyms | Comment | Organism |
---|---|---|
polyphenol oxidase | - |
Malus sp. |
PPO | - |
Malus sp. |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
35 | - |
- |
Malus sp. |
Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
---|---|---|---|
45 | - |
30 min, purified enzyme, stable | Malus sp. |
50 | - |
30 min, purified enzyme, loss of 50% activity | Malus sp. |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
6.5 | - |
- |
Malus sp. |
pH Stability | pH Stability Maximum | Comment | Organism |
---|---|---|---|
6 | - |
purified enzyme, most stable at, unstable at acidic pH | Malus sp. |