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Literature summary for 1.10.3.1 extracted from

  • Arslan, O.; Erzengin, M.; Sinan, S.; Ozensoy, O.
    Purification of mulberry (Morus alba L.) polyphenol oxidase by affinity chromatography and investigation of its kinetic and electrophoretic properties (2004), Food Chem., 88, 479-484.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
sulfonamide compounds
-
Morus alba

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
65000
-
x * 65000, SDS-PAGE Morus alba

Organism

Organism UniProt Comment Textmining
Morus alba
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Morus alba

Source Tissue

Source Tissue Comment Organism Textmining
fruit
-
Morus alba
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
-
Morus alba

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4-methylcatechol + O2
-
Morus alba 4-methyl-o-benzoquinone
-
?
catechol + 1/2 O2
-
Morus alba 1,2-benzoquinone + H2O
-
?
additional information no activity towards the monophenols p-cresol or L-Tyr Morus alba ?
-
?
pyrogallol + O2
-
Morus alba ?
-
?

Subunits

Subunits Comment Organism
? x * 65000, SDS-PAGE Morus alba

Synonyms

Synonyms Comment Organism
polyphenol oxidase
-
Morus alba
PPO
-
Morus alba

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
20
-
reaction with 4-methylcatechol Morus alba
20
-
reaction with pyrogallol Morus alba
45
-
reaction with catechol Morus alba

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
50
-
50 min, 50% inactivation Morus alba
60
-
50 min, 30% inactivation Morus alba
80
-
50 min, 20% inactivation Morus alba

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
5
-
reaction with 4-methylcatechol Morus alba
7
-
reaction with catechol Morus alba
7.5
-
reaction with pyrogallol Morus alba