EC Number |
Reaction |
Reference |
---|
1.14.17.4 | 1-aminocyclopropane-1-carboxylate + ascorbate + O2 = ethene + cyanide + dehydroascorbate + CO2 + 2 H2O |
active site contains a single Fe(II) ligated by residues His177, Asp179, His234, mechanism |
658424 |
1.14.17.4 | 1-aminocyclopropane-1-carboxylate + ascorbate + O2 = ethene + cyanide + dehydroascorbate + CO2 + 2 H2O |
catalytic mechanism |
639309, 639310, 639311 |
1.14.17.4 | 1-aminocyclopropane-1-carboxylate + ascorbate + O2 = ethene + cyanide + dehydroascorbate + CO2 + 2 H2O |
ENDOR studies, structural model of active site both in presence and in absence of substrate |
658989 |
1.14.17.4 | 1-aminocyclopropane-1-carboxylate + ascorbate + O2 = ethene + cyanide + dehydroascorbate + CO2 + 2 H2O |
in the enzyme from plants, the ethylene has signalling functions such as stimulation of fruit ripening |
- |
1.14.17.4 | 1-aminocyclopropane-1-carboxylate + ascorbate + O2 = ethene + cyanide + dehydroascorbate + CO2 + 2 H2O |
mechanism, reaction begins with binding of 1-aminocyclopropane-1-carboxylate and O2, and proceeds via iron oxidation and one-electron reduction to form a peroxy intermediate. Breakdown of the intermediate yields a high-valent iron species which is the true oxidizing reagent for bound 1-aminocyclopropane-1-carboxylate |
659526 |
1.14.17.4 | 1-aminocyclopropane-1-carboxylate + ascorbate + O2 = ethene + cyanide + dehydroascorbate + CO2 + 2 H2O |
modelling studies, catalytic mechanism |
657839 |
1.14.17.4 | 1-aminocyclopropane-1-carboxylate + ascorbate + O2 = ethene + cyanide + dehydroascorbate + CO2 + 2 H2O |
reaction mechanism |
689795 |
1.14.17.4 | 1-aminocyclopropane-1-carboxylate + ascorbate + O2 = ethene + cyanide + dehydroascorbate + CO2 + 2 H2O |
the reaction pathway incorporates cyanide as an ACCO/Fe(II) ligand after reaction turnover. The cyanide ligand is likely displaced upon binding of ACC and ascorbate to provide a binding site for oxygen |
744060 |