产品内容
本酶催化的反应为2 GDP-alpha-D-Mannose + alpha-D-Mannosyl-(1->3)-N-Acetyl-alpha-D-Glucosaminyl-Diphospho-Ditrans,octacis-Undecaprenol = 2 GDP + alpha-D-Mannosyl-(1->3)-alpha-D-Mannosyl-(1->3)-alpha-D-Mannosyl-(1->3)-N-Acetyl-alpha-D-Glucosaminyl-Diphospho-Ditrans,octacis-Undecaprenol,系统名称为GDP-alpha-D-Mannose:alpha-D-Mannosyl-(1->3)-N-Acetyl-alpha-D-Glucosaminyl-Diphospho-Ditrans,octacis-Undecaprenol 3-alpha-Mannosyltransferase (Configuration-Retaining),该酶参与大肠杆菌(Escherichia coli)血清型 O8、O9 和 O9a 的膜外小叶中聚甘露糖 O-多糖连接区的生物合成。它对 N-乙酰-alpha-D-葡糖氨酰-二磷酸-ditrans,octacis-十一异戊二烯醇没有活性(参见 EC 2.4.1.348,N-乙酰-alpha-D-葡糖氨酰-二磷酸-ditrans,octacis-十一异戊二烯醇 3-alpha-甘露糖基转移酶)。