产品内容
本酶催化的反应为beta-Amyrin + 3 O2 + 3 [Reduced NADPH---Hemoprotein Reductase] = Oleanolate + 3 [Oxidized NADPH---Hemoprotein Reductase] + 4 H2O (Overall Reaction);;(1a) beta-Amyrin + O2 + [Reduced NADPH---Hemoprotein Reductase] = Erythrodiol + [Oxidized NADPH---Hemoprotein Reductase] + H2O;;(1b) Erythrodiol + O2 + [Reduced NADPH---Hemoprotein Reductase] = Oleanolic Aldehyde + [Oxidized NADPH---Hemoprotein Reductase] + 2 H2O;;(1c) Oleanolic Aldehyde + O2 + [Reduced NADPH---Hemoprotein Reductase] = Oleanolate + [Oxidized NADPH---Hemoprotein Reductase] + H2O，系统名称为beta-Amyrin,[reduced NADPH---Hemoprotein Reductase]:oxygen Oxidoreductase (28-Hydroxylating)，一种存在于植物中的细胞色素 P-450（血红素-硫醇盐）蛋白。该酶参与齐墩果烷型三萜（如人参皂苷 Ro）的生物合成。来自蒺藜苜蓿（Medicago truncatula，桶形苜蓿）的该酶（CYP716A12）还可分别将 alpha-香树脂醇和羽扇豆醇转化为熊果酸和白桦脂酸。来自 lanceolate 杜茎山（Maesa lanceolata）的该酶（CYP716A75，原文 CYP16A75）不能将反应催化到底，导致两种中间体的积累。
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