Glycosynthase with Broad Substrate Specificity - an Efficient Biocatalyst for the Construction of Oligosaccharide Library
作者:Jinhua Wei、Xun Lv、Yang Lü、Gangzhu Yang、Lifeng Fu、Liu Yang、Jianjun Wang、Jianhui Gao、Shuihong Cheng、Qian Duan、Cheng Jin、Xuebing Li
DOI:10.1002/ejoc.201201507
日期:2013.4
A versatile glycosynthase (TnG-E338A) with strikingly broad substrate scope has been developed from Thermus nonproteolyticus β-glycosidase (TnG) by using site-directed mutagenesis. The practical utility of this biocatalyst has been demonstrated by the facile generation of a small library containing various oligosaccharides and a steroidal glycoside (total 25 compounds) in up to 100 % isolated yield
通过使用定点诱变从非蛋白水解栖热菌 β-糖苷酶 (TnG) 中开发出一种多功能糖合酶 (TnG-E338A),其底物范围非常广泛。这种生物催化剂的实际效用已通过以高达 100% 的分离产率轻松生成包含各种寡糖和甾体糖苷(总共 25 种化合物)的小型文库得到证明。此外,该酶在一锅平行反应中很容易合成了一系列八种低聚糖,这突出了其在碳水化合物库的组合构建中的潜力,这将有助于糖组学和糖治疗研究。值得注意的是,该酶提供了一种可以将糖合酶技术扩展到组合化学的方法。