Glycopeptide Synthesis throughendo-Glycosidase-Catalyzed Oligosaccharide Transfer of Sugar Oxazolines: Probing Substrate Structural Requirement
作者:Ying Zeng、Jingsong Wang、Bing Li、Steven Hauser、Hengguang Li、Lai-Xi Wang
DOI:10.1002/chem.200501196
日期:2006.4.12
An array of sugar oxazolines was synthesized and tested as donor substrates for the Arthrobacter endo-beta-N-acetylglucosaminidase (Endo-A)-catalyzed glycopeptide synthesis. The experiments revealed that the minimum structure of the donor substrate required for Endo-A catalyzed transglycosylation is a Man beta1-->4-GlcNAc oxazoline moiety. Replacement of the beta-D-Man moiety with beta-D-Glc, beta-D-Gal