ID 4.2.1.92 DE Hydroperoxide dehydratase. AN Allene oxide synthase. AN AOS. AN Hydroperoxide isomerase. CA (9Z,11E,15Z)-(13S)-hydroperoxyoctadeca-9,11,15-trienoate = (9Z,15Z)- CA (13S)-12,13-epoxyoctadeca-9,11,15-trienoate + H(2)O. CF Heme-thiolate. CC -!- Acts on a number of unsaturated fatty-acid hydroperoxides, forming CC the corresponding allene oxides. CC -!- The product of the above reaction is unstable and is acted upon by CC EC 5.3.99.6 to form the cyclopentenone derivative (15Z)-12-oxophyto- CC 10,15-dienoate (OPDA), which is the first cyclic and biologically CC active metabolite in the jasmonate biosynthesis pathway. PR PROSITE; PDOC00081; DR O16025, AOSL_PLEHO ; Q7Y0C8, C74A1_ORYSJ; Q7XYS3, C74A2_ORYSJ; DR Q40778, C74A2_PARAR; Q6Z6L1, C74A3_ORYSJ; Q6Z6K9, C74A4_ORYSJ; DR Q96242, CP74A_ARATH; P48417, CP74_LINUS ; //