产品内容
本酶催化的反应为(1) UDP-alpha-D-Glucose + 1,2-Diacyl-3-O-(beta-D-Glucopyranosyl)-Sn-Glycerol = 1,2-Diacyl-3-O-[beta-D-Glucopyranosyl-(1->6)-O-beta-D-Glucopyranosyl]-Sn-Glycerol + UDP;;(2) UDP-alpha-D-Glucose + 1,2-Diacyl-3-O-[beta-D-Glucopyranosyl-(1->6)-O-beta-D-Glucopyranosyl]-Sn-Glycerol = 1,2-Diacyl-3-O-[beta-D-Glucopyranosyl-(1->6)-beta-D-Glucopyranosyl-(1->6)-O-beta-D-Glucopyranosyl]-Sn-Glycerol + UDP，系统名称为UDP-alpha-D-Glucose:1,2-Diacyl-3-O-(beta-D-Glucopyranosyl)-Sn-Glycerol 6-Glucosyltransferase，该酶存在于若干细菌物种中。来自枯草芽孢杆菌 Bacillus subtilis 的该酶对葡萄糖具有专一性 [1]。来自生殖支原体 Mycoplasma genitalium 的该酶能以相近的效率掺入半乳糖，但体内主要形成1,2-二酰基-二吡喃葡糖基-sn-甘油 [3]。来自金黄色葡萄球菌 Staphylococcus aureus 的该酶还能形成葡糖基-甘油-3-磷酸-(1'-sn-甘油) [2]。
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