Any feedback?
Please rate this page
(literature.php)
(0/150)

BRENDA support

Literature summary for 1.14.18.1 extracted from

  • Kahn, V.; Pomerantz, S.H.
    Monophenolase activity of avocado polyphenol oxidase (1980), Phytochemistry, 19, 379-385.
No PubMed abstract available

Inhibitors

Inhibitors Comment Organism Structure
diethyldithiocarbamate 0.166 mM, 90% inhibition Persea americana

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.25
-
dopamine
-
Persea americana
0.55
-
tyramine
-
Persea americana
0.65
-
p-Cresol
-
Persea americana
0.9
-
4-methylcatechol
-
Persea americana
2
-
L-tyrosine
-
Persea americana
2
-
D-tyrosine
-
Persea americana
6
-
L-Dopa
-
Persea americana

Organism

Organism UniProt Comment Textmining
Persea americana
-
avocado
-

Source Tissue

Source Tissue Comment Organism Textmining
fruit
-
Persea americana
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.019
-
partially purified enzyme, tyrosine hydroxylation Persea americana

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4-methylcatechol + O2
-
Persea americana 4-methyl-o-benzoquinone + H2O
-
?
D-tyrosine + O2
-
Persea americana ?
-
r
dopa + 1/2 O2
-
Persea americana dopaquinone + H2O
-
?
dopamine + 1/2 O2
-
Persea americana dopamine quinone + H2O
-
?
L-tyrosine + O2
-
Persea americana L-DOPA + H2O
-
r
p-cresol + O2
-
Persea americana 4-methylpyrocatechol + H2O
-
?
tyramine + O2
-
Persea americana dopamine + H2O
-
r