KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
additional information | - |
additional information | kinetics | Ocimum basilicum | |
1.62 | - |
catechol | pH 8.0, 25°C | Ocimum basilicum | |
2.77 | - |
4-methylcatechol | pH 6.0, 25°C | Ocimum basilicum | |
3.42 | - |
pyrogallol | pH 9.0, 25°C | Ocimum basilicum |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Ocimum basilicum | - |
- |
- |
Purification (Comment) | Organism |
---|---|
native enzyme 11.5fold by (NH4)2SO4 precipitation, dialysis, and L-tyrosine-4-aminobenzoic acid affinity chromatography | Ocimum basilicum |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
59.46 | - |
purified enzyme | Ocimum basilicum |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
4-methylcatechol + O2 | - |
Ocimum basilicum | 4-methyl-1,2-benzoquinone + H2O | - |
? | |
catechol + 1/2 O2 | - |
Ocimum basilicum | 1,2-benzoquinone + H2O | - |
? | |
pyrogallol + O2 | - |
Ocimum basilicum | ? | - |
? |
Synonyms | Comment | Organism |
---|---|---|
diphenolase | - |
Ocimum basilicum |
polyphenol oxidase | - |
Ocimum basilicum |
PPO | - |
Ocimum basilicum |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
20 | - |
with substrate 4-methylcatechol | Ocimum basilicum |
40 | - |
with substrate catechol | Ocimum basilicum |
50 | - |
with substrate pyrogallol | Ocimum basilicum |
Temperature Minimum [°C] | Temperature Maximum [°C] | Comment | Organism |
---|---|---|---|
10 | 60 | - |
Ocimum basilicum |
Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
---|---|---|---|
additional information | - |
heat denaturation kinetics | Ocimum basilicum |
55 | - |
30 min, purified enzyme, loss of 50% activity | Ocimum basilicum |
75 | - |
30 min, purified enzyme, loss of 55%, 80%, and 70% activity with substrates 4-methylcatechol, catechol, and pyrogallol, respectively | Ocimum basilicum |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
6 | - |
with substrate 4-methylcatechol | Ocimum basilicum |
8 | - |
with substrate catechol | Ocimum basilicum |
9 | - |
with substrate pyrogallol | Ocimum basilicum |
pH Minimum | pH Maximum | Comment | Organism |
---|---|---|---|
4 | 9 | pH-profile | Ocimum basilicum |