Hydroperoxide dehydratase
Definition:
EC Tree > 4 Lyases > 4.2 Carbon-oxygen lyases > 4.2.1 Hydro-lyases > 4.2.1.92 hydroperoxide dehydratase
Hydroperoxide dehydratase (allene oxide synthase) is a CYP74 P450 enzyme that dehydrates unsaturated fatty-acid hydroperoxides into allene oxides. It converts (9Z,11E,15Z)-(13S)-hydroperoxyoctadeca-9,11,15-trienoate into (9Z,15Z)-(13S)-12,13-epoxyoctadeca-9,11,15-trienoate (an allene oxide) and water; the unstable product is acted on by EC 5.3.99.6, allene-oxide cyclase, to form OPDA, the first cyclic bioactive jasmonate precursor. Structurally it is a CYP74A allene-oxide synthase.
Hydroperoxide dehydratase (allene oxide synthase) is a CYP74 P450 enzyme that dehydrates unsaturated fatty-acid hydroperoxides into allene oxides. It converts (9Z,11E,15Z)-(13S)-hydroperoxyoctadeca-9,11,15-trienoate into (9Z,15Z)-(13S)-12,13-epoxyoctadeca-9,11,15-trienoate (an allene oxide) and water; the unstable product is acted on by EC 5.3.99.6, allene-oxide cyclase, to form OPDA, the first cyclic bioactive jasmonate precursor. Structurally it is a CYP74A allene-oxide synthase.
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