产品内容
本酶催化的反应为A Flavanone + 2 [Reduced NADPH---Hemoprotein Reductase] + 2 O2 = A 3',5'-Dihydroxyflavanone + 2 [Oxidized NADPH---Hemoprotein Reductase] + 2 H2O (Overall Reaction);;(1a) A Flavanone + [Reduced NADPH---Hemoprotein Reductase] + O2 = A 3'-Hydroxyflavanone + [Oxidized NADPH---Hemoprotein Reductase] + H2O;;(1b) A 3'-Hydroxyflavanone + [Reduced NADPH---Hemoprotein Reductase] + O2 = A 3',5'-Dihydroxyflavanone + [Oxidized NADPH---Hemoprotein Reductase] + H2O,系统名称为Flavanone,[reduced NADPH---Hemoprotein Reductase]:oxygen Oxidoreductase (3',5'-Dihydroxylating),一种存在于植物中的细胞色素 P-450(血红素-硫醇盐)蛋白。3',5'-二羟基黄烷酮经 3'-羟基黄烷酮形成。在矮牵牛(Petunia hybrida)中,该酶作用于柚皮素、圣草酚、二氢槲皮素(花旗松素)和二氢山奈酚(香橙素)。该酶催化 5,7,4'-三羟基黄烷酮(柚皮素)在 3' 位羟基化生成圣草酚,或在 3' 和 5' 位同时羟基化生成 5,7,3',4',5'-五羟基黄烷酮(二氢没食子素)。该酶还催化 3,5,7,3',4'-五羟基黄烷酮(花旗松素)在 5' 位的羟基化,生成蛇葡萄素。