BRENDA - Enzyme Database

Consistency of polyphenol oxidase (PPO) thermostability in ripening apricots (Prunus armeniaca L.): evidence for the presence of thermostable PPO forming and destabilizing mechanisms in apricots

Yemenicioglu, A.; Cemeroglu, B.; J. Agric. Food Chem. 51, 2371-2379 (2003)

Data extracted from this reference:

Organism
EC Number
Organism
Primary Accession No. (UniProt)
Commentary
Textmining
1.10.3.1
Prunus armeniaca
-
-
-
Purification (Commentary)
EC Number
Commentary
Organism
1.10.3.1
-
Prunus armeniaca
Substrates and Products (Substrate)
EC Number
Substrates
Commentary Substrates
Literature (Substrates)
Organism
Products
Commentary (Products)
Literature (Products)
Organism (Products)
Reversibility
1.10.3.1
(+)-catechin + O2
-
658950
Prunus armeniaca
?
-
-
-
?
1.10.3.1
4-methylcatechol + O2
-
658950
Prunus armeniaca
?
-
-
-
?
1.10.3.1
catechol + O2
-
658950
Prunus armeniaca
?
-
-
-
?
1.10.3.1
pyrogallol + O2
-
658950
Prunus armeniaca
?
-
-
-
?
Temperature Stability [°C]
EC Number
Temperature Stability Minimum [°C]
Temperature Stability Maximum [°C]
Commentary
Organism
1.10.3.1
additional information
-
presence of a thermostable polyphenol oxidase forming and destabilizing mechanism in apricot. The loss of PPO thermostability by partial purification indicates the non-covalent nature of the stabilization
Prunus armeniaca
Purification (Commentary) (protein specific)
EC Number
Commentary
Organism
1.10.3.1
-
Prunus armeniaca
Substrates and Products (Substrate) (protein specific)
EC Number
Substrates
Commentary Substrates
Literature (Substrates)
Organism
Products
Commentary (Products)
Literature (Products)
Organism (Products)
Reversibility
1.10.3.1
(+)-catechin + O2
-
658950
Prunus armeniaca
?
-
-
-
?
1.10.3.1
4-methylcatechol + O2
-
658950
Prunus armeniaca
?
-
-
-
?
1.10.3.1
catechol + O2
-
658950
Prunus armeniaca
?
-
-
-
?
1.10.3.1
pyrogallol + O2
-
658950
Prunus armeniaca
?
-
-
-
?
Temperature Stability [°C] (protein specific)
EC Number
Temperature Stability Minimum [°C]
Temperature Stability Maximum [°C]
Commentary
Organism
1.10.3.1
additional information
-
presence of a thermostable polyphenol oxidase forming and destabilizing mechanism in apricot. The loss of PPO thermostability by partial purification indicates the non-covalent nature of the stabilization
Prunus armeniaca