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Literature summary extracted from

  • Finlayson, S.A.; Reid, D.M.
    Influence of CO2 on ACC oxidase activity from roots of sunflower (Helianthus annuus) seedlings (1994), Phytochemistry, 35, 847-851.
No PubMed abstract available

Activating Compound

EC Number Activating Compound Comment Organism Structure
1.14.17.4 ascorbate
-
 Helianthus annuus
1.14.17.4 CO2 influences Km, pH optimum, optimum concentration of ascorbate and 1-aminocyclopropane-1-carboxylate at varying concentrations Helianthus annuus
1.14.17.4 additional information no activation by 2-oxoglutarate Helianthus annuus
1.14.17.4 O2 required Helianthus annuus

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
1.14.17.4 additional information
-
 additional information kinetics Helianthus annuus

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
1.14.17.4 Fe2+ required Helianthus annuus

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
1.14.17.4 1-aminocyclopropane-1-carboxylate + ascorbate + O2 Helianthus annuus
-
 ethylene + cyanide + dehydroascorbate + CO2 + H2O
-
 ?

Organism

EC Number Organism UniProt Comment Textmining
1.14.17.4 Helianthus annuus
-
 var. Dahlgren 131
-

Source Tissue

EC Number Source Tissue Comment Organism Textmining
1.14.17.4 root seedling Helianthus annuus
-
1.14.17.4 seedling root Helianthus annuus
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.14.17.4 1-aminocyclopropane-1-carboxylate + ascorbate + O2
-
 Helianthus annuus ethylene + cyanide + dehydroascorbate + CO2 + H2O
-
 ?
1.14.17.4 1-aminocyclopropane-1-carboxylate + L-ascorbate + O2 i.e. ACC Helianthus annuus ethylene + cyanide + dehydroascorbate + CO2 + H2O
-
 ?

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
1.14.17.4 30 35
-
 Helianthus annuus

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
1.14.17.4 additional information
-
 activity at different pH values is dependent on CO2 concentration Helianthus annuus
1.14.17.4 7 7.5
-
 Helianthus annuus