Inhibitors | Comment | Organism | Structure |
---|---|---|---|
dithiothreitol | strong inhibition | Musa acuminata | |
Sodium metabisulfite | strong inhibition | Musa acuminata |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
additional information | - |
additional information | no Michaelis-Menten kinetics | Musa acuminata |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
additional information | Musa acuminata | 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 | ? | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Musa acuminata | - |
- |
- |
Purification (Comment) | Organism |
---|---|
optimization of enzyme extraction from roots, best using 0.2 M phosphate buffer at pH 7.0 with 5% insoluble polyvinylpyrrolidone and 0.25% Triton X-100, overview | Musa acuminata |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
fruit | pulp and peel | Musa acuminata | - |
leaf | - |
Musa acuminata | - |
additional information | tissue distribution, overview | Musa acuminata | - |
pulp | - |
Musa acuminata | - |
root | - |
Musa acuminata | - |
stem | - |
Musa acuminata | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
4-cresol + O2 | root and pulp enzyme | Musa acuminata | ? | - |
? | |
additional information | 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 | Musa acuminata | ? | - |
? | |
additional information | no activity with L-tyrosine by the root and the pulp enzyme, the enzyme catalyzes the hydroxylation of monophenols to o-diphenols, monophenolase activity EC 1.14.18.1, and the oxidation of the o-diphenols to o-quinones, diphenolase activity EC 1.10.3.1, cross-reaction analysis, overview | Musa acuminata | ? | - |
? |
Synonyms | Comment | Organism |
---|---|---|
cresolase | - |
Musa acuminata |
More | cf. EC 1.10.3.1 | Musa acuminata |
polyphenol oxidase | - |
Musa acuminata |
PPO | - |
Musa acuminata |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
25 | - |
assay at | Musa acuminata |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
6.5 | - |
assay at | Musa acuminata |