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Literature summary for 1.14.17.4 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

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

KM Value [mM]

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

Metals/Ions

Metals/Ions Comment Organism Structure
Fe2+ required Helianthus annuus

Natural Substrates/ Products (Substrates)

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

Organism

Organism UniProt Comment Textmining
Helianthus annuus
-
var. Dahlgren 131
-

Source Tissue

Source Tissue Comment Organism Textmining
root seedling Helianthus annuus
-
seedling root Helianthus annuus
-

Substrates and Products (Substrate)

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

Temperature Optimum [°C]

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

pH Optimum

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