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Literature summary for 1.10.3.1 extracted from

  • Holzapfel, C.; Shahrokh, P.; Kafkewitz, D.
    Polyphenol oxidase activity in the roots of seedlings of Bromus (Poaceae) and other grass genera (2010), Am. J. Bot., 97, 1195-1199.
    View publication on PubMed
Search for more literature for 1.10.3.1

Activating Compound

Activating Compound Comment Organism Structure
catechol 5 mM catechol results in a 5-8fold acceleration of the rate of oxidation of 2.5 mM L-Dopa Bromus inermis
catechol 5 mM catechol results in a 5-8fold acceleration of the rate of oxidation of 2.5 mM L-Dopa Bromus rubens
additional information the presence of 5 mM of the following monophenolics has no effect on the rate of oxidation of 2.5 mM L-Dopa: 2-hydroxybenzoic acid (salicylic acid), 3-hydroxybenzoic acid, 4-hydroxybenzoic acid, (2-, 3-, or 4-)coumaric acids (2-, 3-, or 4-hydroxycinnamic acid). Additionally, neither 5 mM vanillin (4-hydroxy-3-methoxybenzaldehyde) nor pyrogallol (1,2,3-trihydroxybenzene) has any effect of the oxidation of 2.5 mM L-DOPA Bromus inermis
additional information the presence of 5 mM of the following monophenolics has no effect on the rate of oxidation of 2.5 mM L-Dopa: 2-hydroxybenzoic acid (salicylic acid), 3-hydroxybenzoic acid, 4-hydroxybenzoic acid, (2-, 3-, or 4-)coumaric acids (2-, 3-, or 4-hydroxycinnamic acid). Additionally, neither 5 mM vanillin (4-hydroxy-3-methoxybenzaldehyde) nor pyrogallol (1,2,3-trihydroxybenzene) has any effect of the oxidation of 2.5 mM L-DOPA Bromus rubens

Organism

Organism UniProt Comment Textmining
Bromus inermis
-
-
-
Bromus rubens
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
root
-
 Bromus inermis
-
root
-
 Bromus rubens
-
seedling
-
 Bromus inermis
-
seedling
-
 Bromus rubens
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
caffeic acid + O2
-
 Bromus inermis ?
-
 ?
catechol + O2 weak substrate Bromus inermis ?
-
 ?
catechol + O2 weak substrate Bromus rubens ?
-
 ?
L-DOPA + O2
-
 Bromus inermis dopaquinone + H2O
-
 ?
L-DOPA + O2
-
 Bromus rubens dopaquinone + H2O
-
 ?
additional information no activity with L-tyrosine Bromus inermis ?
-
 ?
additional information no activity with L-tyrosine Bromus rubens ?
-
 ?
additional information protocatechuic acid (3,4-dihydroxybenzoic acid) shows little or no activity as a sole substrate Bromus inermis ?
-
 ?
additional information protocatechuic acid (3,4-dihydroxybenzoic acid) shows little or no activity as a sole substrate Bromus rubens ?
-
 ?

Synonyms

Synonyms Comment Organism
polyphenol oxidase
-
 Bromus inermis
polyphenol oxidase
-
 Bromus rubens
PPO
-
 Bromus inermis
PPO
-
 Bromus rubens