EC Number | Activating Compound | Comment | Organism | Structure |
---|---|---|---|---|
1.10.3.1 | D-fructose | 17% activation at 2 mM | Zea mays | |
1.10.3.1 | D-glucose | 16% activation at 2 mM | Zea mays | |
1.10.3.1 | sucrose | 4% activation at 2 mM | Zea mays |
EC Number | Application | Comment | Organism |
---|---|---|---|
1.10.3.1 | food industry | inhibition of catechol oxidase diminishes browning in white radish and elevates food quality | Zea mays |
EC Number | Inhibitors | Comment | Organism | Structure |
---|---|---|---|---|
1.10.3.1 | EDTA | 22.2% inhibition at 2 mM | Zea mays | |
1.10.3.1 | SDS | 12.2% inhibition at 2 mM | Zea mays | |
1.10.3.1 | Sodium azide | 26.6% inhibition at 2 mM | Zea mays |
EC Number | KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|---|
1.10.3.1 | additional information | - |
additional information | Michaelis-Menten kinetics | Zea mays | |
1.10.3.1 | 3.48 | - |
catechol | pH 8.0, 40°C | Zea mays | |
1.10.3.1 | 8 | - |
4-methylcatechol | pH 6.0, 30°C | Zea mays |
EC Number | Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|---|
1.10.3.1 | 158000 | - |
native PAGE | Zea mays |
EC Number | Organism | UniProt | Comment | Textmining |
---|---|---|---|---|
1.10.3.1 | Zea mays | - |
- |
- |
EC Number | Purification (Comment) | Organism |
---|---|---|
1.10.3.1 | native enzyme from corn tassel 10fold by ammonium sulfate fractionation and gel filtration | Zea mays |
EC Number | Source Tissue | Comment | Organism | Textmining |
---|---|---|---|---|
1.10.3.1 | tassel | - |
Zea mays | - |
EC Number | Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|---|
1.10.3.1 | additional information | - |
2612.06 U/mg, one enzyme unit is defined as the amount of enzyme that produces a rise of 0.001 absorbance in one minute at 420 nm | Zea mays |
EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
1.10.3.1 | 2 4-methylcatechol + O2 | - |
Zea mays | 2 4-methyl-1,2-benzoquinone | - |
? | |
1.10.3.1 | 2 catechol + O2 | best substrate | Zea mays | 2 1,2-benzoquinone + 2 H2O | - |
? |
EC Number | Subunits | Comment | Organism |
---|---|---|---|
1.10.3.1 | ? | x * 158000, SDS-PAGE | Zea mays |
EC Number | Synonyms | Comment | Organism |
---|---|---|---|
1.10.3.1 | polyphenol oxidase | - |
Zea mays |
1.10.3.1 | PPO | - |
Zea mays |
EC Number | Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|---|
1.10.3.1 | 30 | - |
with substrate 4-methylcatechol | Zea mays |
1.10.3.1 | 40 | - |
with substrate catechol | Zea mays |
EC Number | pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|---|
1.10.3.1 | 6 | - |
with substrate 4-methylcatechol | Zea mays |
1.10.3.1 | 8 | - |
with substrate catechol | Zea mays |