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Information on EC - 2-oxoglutarate dioxygenase (ethene-forming)

for references in articles please use BRENDA:EC1.13.12.19
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IUBMB Comments
This is one of two simultaneous reactions catalysed by the enzyme, which is responsible for ethene production in bacteria of the Pseudomonas syringae group. In the other reaction [EC, 2-oxoglutarate/L-arginine monooxygenase/decarboxylase (succinate-forming)] the enzyme catalyses the mono-oxygenation of both 2-oxoglutarate and L-arginine, forming succinate, carbon dioxide and L-hydroxyarginine, which is subsequently cleaved into guanidine and (S)-1-pyrroline-5-carboxylate.The enzymes catalyse two cycles of the ethene-forming reaction for each cycle of the succinate-forming reaction, so that the stoichiometry of the products ethene and succinate is 2:1.
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The enzyme appears in viruses and cellular organisms
Reaction Schemes
ethylene forming enzyme, 2og-fe(ii) oxygenase, more
2-oxoglutarate + O2 = ethene + 3 CO2 + H2O
show the reaction diagram