Enzymatic catalysis in mild conditions plays a pivotal role in green chemistry, and the mining and the directed evolution of novel enzymes are crucial for the utilization of efficient biocatalysts. Glycosyltransferases (GTs) hold great promise in the synthesis of many valuable glycosylated products; however the narrow substrate scope and low catalytic efficiency of GTs often limit their broader applications
engineering towards the desired direction often requires substantial effort. Herein, we employ a comparative molecular dynamics approach to guide the engineering of GTs to alter their catalytic performances. Through comparing the structural flexibility and site-saturation mutagenesis of two GTs BarGT-1 with narrow substrate scope and BarGT-3 with wide substrate scope, the identified substitution K321P in
Probing the Aglycon Promiscuity of an Engineered Glycosyltransferase
作者:Richard W. Gantt、Randal D. Goff、Gavin J. Williams、Jon S. Thorson
DOI:10.1002/anie.200803508
日期:2008.11.3
A mild and selective method for cleavage of O-acetyl groups with dibutyltin oxide
作者:Hong-Min Liu、Xuebin Yan、Wen Li、Conghai Huang
DOI:10.1016/s0008-6215(02)00277-x
日期:2002.10
A mild and efficient neutral method for the cleavage of O-acetyl groups with dibutyltin oxide has been developed. This method is especially useful in the synthesis of glycosides containing base- or acid-sensitive multifunctional groups.