Activating Compound | Comment | Organism | Structure |
---|---|---|---|
ascorbate | required | Solanum lycopersicum | |
CO2 | activates | Solanum lycopersicum | |
additional information | no activation by bisulfite, isozyme AOC1 | Solanum lycopersicum | |
O2 | required | Solanum lycopersicum |
Cloned (Comment) | Organism |
---|---|
isozyme ACO1, overexpression in Escherichia coli BL21(DE3)-pLysS | Solanum lycopersicum |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
1-aminocyclopropane-1-carboxylate | slight inhibition at high concentration | Solanum lycopersicum | |
Zn2+ | competitive to Fe2+ | Solanum lycopersicum |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.028 | - |
O2 | recombinant isozyme ACO1, in presence of 0.5 mM L-ascorbate and 20 mM CO2/HCO3-, pH 7.2, 25°C | Solanum lycopersicum | |
0.077 | - |
1-aminocyclopropane-1-carboxylate | recombinant isozyme ACO1, in presence of 0.5 mM L-ascorbate and 20 mM CO2/HCO3-, pH 7.2, 25°C | Solanum lycopersicum | |
4.6 | - |
L-ascorbate | recombinant isozyme ACO1, in presence of 0.5 mM L-ascorbate and 20 mM CO2/HCO3-, pH 7.2, 25°C | Solanum lycopersicum |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
Fe2+ | required | Solanum lycopersicum | |
Fe2+ | a single bound Fe2+ per monomer | Solanum lycopersicum |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
1-aminocyclopropane-1-carboxylate + ascorbate + O2 | Solanum lycopersicum | catalyses the final step in ethylene biosynthesis | ethylene + cyanide + dehydroascorbate + CO2 + H2O | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Solanum lycopersicum | - |
isozyme ACO1 | - |
Purification (Comment) | Organism |
---|---|
recombinant isozyme ACO1 from Escherichia coli BL21(DE3)-pLysS, to near homogeneity | Solanum lycopersicum |
Reaction | Comment | Organism | Reaction ID |
---|---|---|---|
1-aminocyclopropane-1-carboxylate + ascorbate + O2 = ethene + cyanide + dehydroascorbate + CO2 + 2 H2O | catalytic mechanism | Solanum lycopersicum |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
1-aminocyclopropane-1-carboxylate + ascorbate + O2 | catalyses the final step in ethylene biosynthesis | Solanum lycopersicum | ethylene + cyanide + dehydroascorbate + CO2 + H2O | - |
? | |
1-aminocyclopropane-1-carboxylate + L-ascorbate + O2 | specific for the substrates | Solanum lycopersicum | ethylene + cyanide + dehydroascorbate + CO2 + H2O | - |
? | |
1-aminocyclopropane-1-carboxylate + L-ascorbate + O2 | i.e. ACC | Solanum lycopersicum | ethylene + cyanide + dehydroascorbate + CO2 + H2O | - |
? |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
25 | - |
assay at | Solanum lycopersicum |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
7.2 | - |
assay at | Solanum lycopersicum |
Ki Value [mM] | Ki Value maximum [mM] | Inhibitor | Comment | Organism | Structure |
---|---|---|---|---|---|
38.9 | - |
1-aminocyclopropane-1-carboxylate | recombinant isozyme ACO1, in presence of 5 mM L-ascorbate and 20 mM CO2/HCO3-, pH 7.2, 25°C | Solanum lycopersicum |