产品内容
本酶催化的反应为4,4-Dimethyl-5alpha-Cholest-7-En-3beta-Ol + 3 NAD(P)H + 3 H+ + 3 O2 = 3beta-Hydroxy-4beta-Methyl-5alpha-Cholest-7-Ene-4alpha-Carboxylate + 3 NAD(P)+ + 4 H2O (Overall Reaction);;(1a) 4,4-Dimethyl-5alpha-Cholest-7-En-3beta-Ol + NAD(P)H + H+ + O2 = 4beta-Hydroxymethyl-4alpha-Methyl-5alpha-Cholest-7-En-3beta-Ol + NAD(P)+ + H2O;;(1b) 4beta-Hydroxymethyl-4alpha-Methyl-5alpha-Cholest-7-En-3beta-Ol + NAD(P)H + H+ + O2 = 3beta-Hydroxy-4beta-Methyl-5alpha-Cholest-7-Ene-4alpha-Carbaldehyde + NAD(P)+ + 2 H2O;;(1c) 3beta-Hydroxy-4beta-Methyl-5alpha-Cholest-7-Ene-4alpha-Carbaldehyde + NAD(P)H + H+ + O2 = 3beta-Hydroxy-4beta-Methyl-5alpha-Cholest-7-Ene-4alpha-Carboxylate + NAD(P)+ + H2O，系统名称为4,4-Dimethyl-5alpha-Cholest-7-En-3beta-Ol,NAD(P)H:oxygen Oxidoreductase (Hydroxylating)，需要细胞色素b5。也作用于4α-甲基-5α-胆甾-7-烯-3β-醇。该甾醇既可以环阿屯醇为基础，也可以羊毛甾醇为基础。
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