KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
additional information | - |
additional information | Michaelis-Menten kinetics | Prunus armeniaca | |
1.69 | - |
Pectin | pH 7.5, 30°C | Prunus armeniaca |
Localization | Comment | Organism | GeneOntology No. | Textmining |
---|---|---|---|---|
cell wall | - |
Prunus armeniaca | 5618 | - |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
NaCl | apricot PME activity is dependent on NaCl. With NaCl concentration increasing in the assay mixture, the PME activity increases gradually and reaches the maximum level at 0.15 M | Prunus armeniaca |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
pectin + n H2O | Prunus armeniaca | - |
n methanol + pectate | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Prunus armeniaca | A0A0N9LQL8 | - |
- |
Purification (Comment) | Organism |
---|---|
native enzyme from fruits partially by ammonium sufate fractionation and dialysis | Prunus armeniaca |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
fruit | - |
Prunus armeniaca | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
pectin + n H2O | - |
Prunus armeniaca | n methanol + pectate | - |
? | |
pectin + n H2O | substrate is apple pectin | Prunus armeniaca | n methanol + pectate | - |
? |
Synonyms | Comment | Organism |
---|---|---|
pectin methylesterase | - |
Prunus armeniaca |
PME | - |
Prunus armeniaca |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
60 | - |
- |
Prunus armeniaca |
Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
---|---|---|---|
30 | 70 | the enzyme is completely stable at 40°C for 10 min, shows over 50% activity in the range of 30-45°C, and loses all of its activity at 80°C after 10 min, t1/2 at 60°C, 65°C, and 79°C is 18.9 min, 5.4 min, and 2.2 min, respectively, thermal inactivation kinetics | Prunus armeniaca |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
7.5 | - |
- |
Prunus armeniaca |
pH Minimum | pH Maximum | Comment | Organism |
---|---|---|---|
6.5 | 9 | over 50% of maximal activity within this range | Prunus armeniaca |
7 | 8 | over 70% of maximal activity in a narrow pH range with the maximal activity occurring at pH 7.5, whereas enzyme activity at lower and higher pH values is very low | Prunus armeniaca |