Enzymatic synthesis of disaccharides using Agrobacterium sp. β-glucosidase
作者:Heiko Prade、Lloyd F. Mackenzie、Stephen G. Withers
DOI:10.1016/s0008-6215(97)10040-4
日期:1997.12
yields up to 65%, has been achieved by utilizing the transglycosylation activity of Agrobacterium sp. β-glucosidase (EC 3.2.1.21). The regioselectivity of the glycosylation reaction was investigated using p -nitrophenyl β- d -galactopyranoside, β- d -mannopyranosyl fluoride and d -glucal as glycosyl donors and a series of phenyl 1-thio-, benzyl 1-thio-, and benzyl β- d -glycopyranosides as glycosyl acceptors
摘要利用土壤杆菌属(Agrobacterium sp。)的转糖基化活性已经实现了几种寡糖的合成,收率高达65%。β-葡萄糖苷酶(EC 3.2.1.21)。使用对硝基苯基β-d-吡喃半乳糖苷,β-d-甘露吡喃糖基氟化物和d-葡萄糖醛作为糖基供体以及一系列苯基1-硫代,苄基1-硫代和苄基β研究了糖基化反应的区域选择性-d-糖吡喃糖苷作为糖基受体。确定分离出的产物对于所有糖基受体均含有β-(1→3)和/或β-(1→4)糖苷键的混合物,但β-d-半乳糖构型受体除外,其中β-的混合物为-观察到(1→3)和β-(1→6)键。