Inhibitors | Comment | Organism | Structure |
---|---|---|---|
Al3+ | strongly inhibited diphenolase activity at ripening stage 1 and 2 | Mespilus germanica | |
ascorbic acid | - |
Mespilus germanica | |
Ca2+ | strongly inhibited diphenolase activity at ripening stage 3 | Mespilus germanica | |
Cu2+ | strongly inhibited diphenolase activity at ripening stage 1 and 2 | Mespilus germanica | |
Hg2+ | strongly inhibited diphenolase activity at ripening stage 1 and 2 | Mespilus germanica | |
Sodium azide | - |
Mespilus germanica | |
Sodium metabisulfite | for all ripening stages sodium metabisulfite inhibits PPO activity | Mespilus germanica | |
Thiourea | - |
Mespilus germanica |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Mespilus germanica | - |
- |
- |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
fruit | - |
Mespilus germanica | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
4-methylcatechol + 1/2 O2 | best substrate | Mespilus germanica | 4-methyl-1,2-benzoquinone + H2O | - |
? | |
catechol + 1/2 O2 | - |
Mespilus germanica | 1,2-benzoquinone + H2O | - |
? | |
L-3,4-dihydroxyphenylalanine + 1/2 O2 | - |
Mespilus germanica | L-dopaquinone + H2O | - |
? | |
L-tyrosine + O2 + AH2 | - |
Mespilus germanica | L-dopa + H2O + A | - |
? |
Synonyms | Comment | Organism |
---|---|---|
polyphenoloxidase | - |
Mespilus germanica |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
20 | - |
ripening stage 2 | Mespilus germanica |
30 | - |
ripening stage 1 and 3 | Mespilus germanica |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
4 | - |
ripening stage 2 | Mespilus germanica |
5 | - |
ripening stage 3 | Mespilus germanica |
7 | - |
ripening stage 1, highest enzyme activity throughout ripening | Mespilus germanica |
pH Minimum | pH Maximum | Comment | Organism |
---|---|---|---|
3 | 9 | - |
Mespilus germanica |
IC50 Value | IC50 Value Maximum | Comment | Organism | Inhibitor | Structure |
---|---|---|---|---|---|
0.05 | - |
at ripening stage 3 | Mespilus germanica | Sodium azide | |
0.06 | - |
at ripening stage 1 | Mespilus germanica | Sodium azide | |
0.06 | - |
at ripening stage 2 | Mespilus germanica | Sodium azide | |
0.08 | - |
at ripening stage 3 | Mespilus germanica | ascorbic acid | |
0.09 | - |
at ripening stage 1 | Mespilus germanica | ascorbic acid | |
0.1 | - |
at ripening stage 2 | Mespilus germanica | ascorbic acid | |
1.49 | - |
at ripening stage 3 | Mespilus germanica | Thiourea | |
1.5 | - |
at ripening stage 1 | Mespilus germanica | Thiourea | |
1.73 | - |
at ripening stage 2 | Mespilus germanica | Thiourea | |
9 | - |
at ripening stage 3 | Mespilus germanica | Sodium metabisulfite | |
23.8 | - |
at ripening stage 1 | Mespilus germanica | Sodium metabisulfite | |
41 | - |
at ripening stage 2 | Mespilus germanica | Sodium metabisulfite |