产品内容
本酶催化的反应为(1) 7alpha,12alpha-Dihydroxy-3-Oxochol-24-Oyl-CoA + NAD+ = 7alpha,12alpha-Dihydroxy-3-Oxochol-4-En-24-Oyl-CoA + NADH + H+;;(2) 7alpha-Hydroxy-3-Oxochol-24-Oyl-CoA + NAD+ = 7alpha-Hydroxy-3-Oxochol-4-En-24-Oyl-CoA + NADH + H+,系统名称为3-Oxocholoyl-CoA Delta4-Oxidoreductase,含有黄素。该酶源自细菌斯氏梭菌(Clostridium scindens),参与胆汁酸 7alpha-脱羟基途径。该酶对其底物进行立体专一性氧化,对 7beta 异头物没有活性。参见 EC 1.3.1.116(7beta-羟基-3-氧代胆甾-24-酰-CoA 4-去饱和酶)。