产品内容
本酶催化的反应为(1) (-)-Menthone + NADPH + H+ + O2 = (4R,7S)-7-Isopropyl-4-Methyloxepan-2-One + NADP+ + H2O;;(2) Dihydrocarvone + NADPH + H+ + O2 = 4-Isopropenyl-7-Methyloxepan-2-One + NADP+ + H2O;;(3) (Iso)-Dihydrocarvone + NADPH + H+ + O2 = 6-Isopropenyl-3-Methyloxepan-2-One + NADP+ + H2O;;(4a) 1-Hydroxymenth-8-En-2-One + NADPH + H+ + O2 = 7-Hydroxy-4-Isopropenyl-7-Methyloxepan-2-One + NADP+ + H2O;;(4b) 7-Hydroxy-4-Isopropenyl-7-Methyloxepan-2-One = 3-Isopropenyl-6-Oxoheptanoate (Spontaneous),系统名称为(-)-Menthone,NADPH:oxygen Oxidoreductase,一种黄素蛋白(FAD)。这种来自革兰氏阳性细菌红平红球菌 Rhodococcus erythropolis DCL14 的 Baeyer-Villiger 单加氧酶具有广泛的底物特异性,可催化大量单环单萜酮和取代环己酮的内酯化 [2]。(1R,4S)-和 (1S,4R)-1-羟基menth-8-烯-2-酮均可被代谢,内酯产物自发重排形成 3-异丙烯基-6-氧代庚酸 [1]。