EC Number | KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|---|
1.14.18.1 | 2 | 3 | catechol | pH 5.6, 37°C | Camellia sinensis | |
1.14.18.1 | 5.8 | - |
pyrogallate | pH 5.6, 37°C | Camellia sinensis | |
1.14.18.1 | 6.9 | - |
epigallocatechin gallate | pH 5.6, 37°C | Camellia sinensis | |
1.14.18.1 | 8 | - |
pyrogallate | pH 5.6, 37°C | Camellia sinensis | |
1.14.18.1 | 16 | - |
catechol | pH 5.6, 37°C | Camellia sinensis | |
1.14.18.1 | 21 | - |
epigallocatechin | pH 5.6, 37°C | Camellia sinensis | |
1.14.18.1 | 28 | - |
epigallocatechin | pH 5.6, 37°C | Camellia sinensis | |
1.14.18.1 | 32 | - |
epigallocatechin gallate | pH 5.6, 37°C | Camellia sinensis | |
1.14.18.1 | 38 | - |
guaiacol | pH 5.6, 37°C | Camellia sinensis | |
1.14.18.1 | 90 | - |
L-tyrosine | pH 5.6, 37°C | Camellia sinensis | |
1.14.18.1 | 145 | - |
L-tyrosine | pH 5.6, 37°C | Camellia sinensis |
EC Number | Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
1.14.18.1 | 2 catechol + O2 | Camellia sinensis | - |
2 1,2-benzoquinone + 2 H2O | - |
? | |
1.14.18.1 | epigallocatechin + O2 | Camellia sinensis | - |
? + 2 H2O | - |
? | |
1.14.18.1 | epigallocatechin gallate + O2 | Camellia sinensis | - |
? + 2 H2O | - |
? | |
1.14.18.1 | guaiacol + O2 | Camellia sinensis | - |
? | - |
? | |
1.14.18.1 | L-tyrosine + O2 | Camellia sinensis | - |
dopaquinone + H2O | - |
? | |
1.14.18.1 | additional information | Camellia sinensis | synthesis of theaflavins of polyphenol oxidase isozymes from tea leaves | ? | - |
? | |
1.14.18.1 | pyrogallate + O2 | Camellia sinensis | - |
? | - |
? |
EC Number | Organism | UniProt | Comment | Textmining |
---|---|---|---|---|
1.14.18.1 | Camellia sinensis | C0L3S4 | - |
- |
1.14.18.1 | Camellia sinensis | Q68NI4 | - |
- |
EC Number | Purification (Comment) | Organism |
---|---|---|
1.14.18.1 | native enzyme from leaves by ultrafiltration, gel filtration, and twofold anion exchange chromatography | Camellia sinensis |
EC Number | Source Tissue | Comment | Organism | Textmining |
---|---|---|---|---|
1.14.18.1 | leaf | - |
Camellia sinensis | - |
EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
1.14.18.1 | 2 catechol + O2 | - |
Camellia sinensis | 2 1,2-benzoquinone + 2 H2O | - |
? | |
1.14.18.1 | epigallocatechin + O2 | - |
Camellia sinensis | ? + 2 H2O | - |
? | |
1.14.18.1 | epigallocatechin gallate + O2 | - |
Camellia sinensis | ? + 2 H2O | - |
? | |
1.14.18.1 | guaiacol + O2 | - |
Camellia sinensis | ? | - |
? | |
1.14.18.1 | L-tyrosine + O2 | - |
Camellia sinensis | dopaquinone + H2O | - |
? | |
1.14.18.1 | additional information | synthesis of theaflavins of polyphenol oxidase isozymes from tea leaves | Camellia sinensis | ? | - |
? | |
1.14.18.1 | additional information | no activity with guaiacol. Synthesis of theaflavin an theaflavin gallates from different substrate by polyphenol oxidase, overview | Camellia sinensis | ? | - |
? | |
1.14.18.1 | additional information | synthesis of theaflavin an theaflavin gallates from different substrate by polyphenol oxidase, overview | Camellia sinensis | ? | - |
? | |
1.14.18.1 | pyrogallate + O2 | - |
Camellia sinensis | ? | - |
? | |
1.14.18.1 | pyrogallol + O2 | - |
Camellia sinensis | ? | - |
? |
EC Number | Synonyms | Comment | Organism |
---|---|---|---|
1.14.18.1 | polyphenol oxidase | - |
Camellia sinensis |
1.14.18.1 | PPO1 | - |
Camellia sinensis |
1.14.18.1 | PPO2 | - |
Camellia sinensis |
EC Number | Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|---|
1.14.18.1 | 37 | - |
assay at | Camellia sinensis |
EC Number | Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
---|---|---|---|---|
1.14.18.1 | 70 | - |
purified isozyme PPO1, 5 min, 40% activity remaining | Camellia sinensis |
1.14.18.1 | 70 | - |
purified isozyme PPO1, 5 min, 75% activity remaining | Camellia sinensis |
1.14.18.1 | 80 | - |
purified isozyme PPO1, 5 min, 15% activity remaining | Camellia sinensis |
1.14.18.1 | 80 | - |
purified isozyme PPO1, 5 min, inactivation | Camellia sinensis |
1.14.18.1 | 90 | - |
purified isozyme PPO1, 3 min, inactivation | Camellia sinensis |
1.14.18.1 | 90 | - |
purified isozyme PPO1, 5 min, inactivation | Camellia sinensis |
EC Number | pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|---|
1.14.18.1 | 5.6 | - |
assay at | Camellia sinensis |