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Literature summary extracted from

  • Shimizu, M.M.; Melo, G.A.; Brombini Dos Santos, A.; Bottcher, A.; Cesarino, I.; Araujo, P.; Magalhaes Silva Moura, J.C.; Mazzafera, P.
    Enzyme characterisation, isolation and cDNA cloning of polyphenol oxidase in the hearts of palm of three commercially important species (2011), Plant Physiol. Biochem., 49, 970-977.
    View publication on PubMed

Activating Compound

EC Number Activating Compound Comment Organism Structure
1.14.18.1 SDS
-
 Euterpe oleracea
1.14.18.1 SDS
-
 Bactris gasipaes
1.14.18.1 SDS
-
 Euterpe edulis

Inhibitors

EC Number Inhibitors Comment Organism Structure
1.14.18.1 cetyl trimethylammonium bromide
-
 Bactris gasipaes
1.14.18.1 cetyl trimethylammonium bromide
-
 Euterpe edulis
1.14.18.1 cetyl trimethylammonium bromide
-
 Euterpe oleracea
1.14.18.1 Salicylhydroxamic acid reversible competitive inhibition Bactris gasipaes
1.14.18.1 Salicylhydroxamic acid reversible competitive inhibition Euterpe edulis
1.14.18.1 Salicylhydroxamic acid reversible competitive inhibition Euterpe oleracea
1.14.18.1 tropolone
-
 Bactris gasipaes
1.14.18.1 tropolone
-
 Euterpe edulis
1.14.18.1 tropolone
-
 Euterpe oleracea

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
1.14.18.1 0.53
-
 chlorogenic acid pH 6.0, 30°C Bactris gasipaes
1.14.18.1 1.19
-
 chlorogenic acid pH 6.0, 30°C Euterpe edulis
1.14.18.1 1.91
-
 chlorogenic acid pH 6.0, 30°C Euterpe oleracea

Organism

EC Number Organism UniProt Comment Textmining
1.14.18.1 Bactris gasipaes
-
 common name Pupunha
-
1.14.18.1 Euterpe edulis Q45NF5 common name Jucara
-
1.14.18.1 Euterpe oleracea Q3YJ63 common name Acai
-

Purification (Commentary)

EC Number Purification (Comment) Organism
1.14.18.1 partial purification by G25 Sephadex gel filtration Euterpe oleracea
1.14.18.1 partial purification by G25 Sephadex gel filtration Bactris gasipaes
1.14.18.1 partial purification by G25 Sephadex gel filtration Euterpe edulis

Source Tissue

EC Number Source Tissue Comment Organism Textmining
1.14.18.1 apical meristem palmito, the edible part of the apical meristem of palms Euterpe oleracea
-
1.14.18.1 apical meristem palmito, the edible part of the apical meristem of palms Bactris gasipaes
-
1.14.18.1 apical meristem palmito, the edible part of the apical meristem of palms Euterpe edulis
-
1.14.18.1 leaf
-
 Euterpe oleracea
-
1.14.18.1 leaf
-
 Bactris gasipaes
-
1.14.18.1 leaf
-
 Euterpe edulis
-
1.14.18.1 stem
-
 Euterpe oleracea
-
1.14.18.1 stem
-
 Bactris gasipaes
-
1.14.18.1 stem
-
 Euterpe edulis
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.14.18.1 4-methylcatechol + O2 good substrate Euterpe oleracea 4-methyl-1,2-benzoquinone + H2O
-
 ?
1.14.18.1 4-methylcatechol + O2 good substrate Bactris gasipaes 4-methyl-1,2-benzoquinone + H2O
-
 ?
1.14.18.1 4-methylcatechol + O2 good substrate Euterpe edulis 4-methyl-1,2-benzoquinone + H2O
-
 ?
1.14.18.1 caffeic acid + O2
-
 Euterpe oleracea ?
-
 ?
1.14.18.1 caffeic acid + O2
-
 Bactris gasipaes ?
-
 ?
1.14.18.1 caffeic acid + O2
-
 Euterpe edulis ?
-
 ?
1.14.18.1 catechin + O2
-
 Euterpe oleracea ?
-
 ?
1.14.18.1 catechin + O2
-
 Bactris gasipaes ?
-
 ?
1.14.18.1 catechin + O2
-
 Euterpe edulis ?
-
 ?
1.14.18.1 catechol + O2
-
 Euterpe oleracea ?
-
 ?
1.14.18.1 catechol + O2
-
 Bactris gasipaes ?
-
 ?
1.14.18.1 catechol + O2
-
 Euterpe edulis ?
-
 ?
1.14.18.1 chlorogenic acid + O2 best substrate Euterpe oleracea ?
-
 ?
1.14.18.1 chlorogenic acid + O2 best substrate Bactris gasipaes ?
-
 ?
1.14.18.1 chlorogenic acid + O2 best substrate Euterpe edulis ?
-
 ?
1.14.18.1 coumaric acid + O2
-
 Euterpe oleracea ?
-
 ?
1.14.18.1 coumaric acid + O2
-
 Bactris gasipaes ?
-
 ?
1.14.18.1 coumaric acid + O2
-
 Euterpe edulis ?
-
 ?
1.14.18.1 dopamine + O2
-
 Euterpe oleracea ?
-
 ?
1.14.18.1 dopamine + O2
-
 Bactris gasipaes ?
-
 ?
1.14.18.1 dopamine + O2
-
 Euterpe edulis ?
-
 ?
1.14.18.1 hydroxyquinone + O2
-
 Euterpe oleracea ?
-
 ?
1.14.18.1 hydroxyquinone + O2
-
 Bactris gasipaes ?
-
 ?
1.14.18.1 hydroxyquinone + O2
-
 Euterpe edulis ?
-
 ?
1.14.18.1 L-DOPA + O2
-
 Euterpe oleracea ?
-
 ?
1.14.18.1 L-DOPA + O2
-
 Bactris gasipaes ?
-
 ?
1.14.18.1 L-DOPA + O2
-
 Euterpe edulis ?
-
 ?
1.14.18.1 L-tyrosine + O2
-
 Euterpe oleracea L-DOPA + H2O
-
 ?
1.14.18.1 L-tyrosine + O2
-
 Bactris gasipaes L-DOPA + H2O
-
 ?
1.14.18.1 L-tyrosine + O2
-
 Euterpe edulis L-DOPA + H2O
-
 ?
1.14.18.1 protocatechuic acid + O2
-
 Euterpe oleracea ?
-
 ?
1.14.18.1 protocatechuic acid + O2
-
 Bactris gasipaes ?
-
 ?
1.14.18.1 protocatechuic acid + O2
-
 Euterpe edulis ?
-
 ?
1.14.18.1 syringaldazine + O2
-
 Euterpe oleracea ?
-
 ?
1.14.18.1 syringaldazine + O2
-
 Bactris gasipaes ?
-
 ?
1.14.18.1 syringaldazine + O2
-
 Euterpe edulis ?
-
 ?

Synonyms

EC Number Synonyms Comment Organism
1.14.18.1 polyphenol oxidase
-
 Euterpe oleracea
1.14.18.1 polyphenol oxidase
-
 Bactris gasipaes
1.14.18.1 polyphenol oxidase
-
 Euterpe edulis
1.14.18.1 PPO
-
 Euterpe oleracea
1.14.18.1 PPO
-
 Bactris gasipaes
1.14.18.1 PPO
-
 Euterpe edulis
1.14.18.1 PPO1
-
 Euterpe oleracea
1.14.18.1 PPO1
-
 Bactris gasipaes
1.14.18.1 PPO1
-
 Euterpe edulis

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
1.14.18.1 25 30
-
 Euterpe oleracea
1.14.18.1 25 30
-
 Bactris gasipaes
1.14.18.1 25 30
-
 Euterpe edulis

Temperature Stability [°C]

EC Number Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
1.14.18.1 50 90 about 20% loss of activity after 35 min at 50°C, about 30% loss of activity after 5 min at 70°C, about 80% loss of activity after 5 min at 90°C Euterpe oleracea
1.14.18.1 50 90 about 20% loss of activity after 35 min at 50°C, about 35% loss of activity after 5 min at 70°C, about 90% loss of activity after 5 min at 90°C Euterpe edulis
1.14.18.1 50 90 sharp loss of activity (about 50%) after 15 min at 50°C and 5 min at 70°C, no activity after 5 min at 90°C Bactris gasipaes

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
1.14.18.1 6
-
-
 Euterpe oleracea
1.14.18.1 6
-
-
 Bactris gasipaes
1.14.18.1 6
-
-
 Euterpe edulis

pH Range

EC Number pH Minimum pH Maximum Comment Organism
1.14.18.1 5 7
-
 Euterpe oleracea
1.14.18.1 5 7
-
 Bactris gasipaes
1.14.18.1 5 7
-
 Euterpe edulis

Ki Value [mM]

EC Number Ki Value [mM] Ki Value maximum [mM] Inhibitor Comment Organism Structure
1.14.18.1 0.00125
-
 tropolone pH 6.0, 30°C Euterpe oleracea
1.14.18.1 0.00196
-
 Salicylhydroxamic acid pH 6.0, 30°C Euterpe oleracea
1.14.18.1 0.00282
-
 Salicylhydroxamic acid pH 6.0, 30°C Euterpe edulis
1.14.18.1 0.00655
-
 tropolone pH 6.0, 30°C Euterpe edulis