Title | Solid-phase oligosaccharide and glycopeptide synthesis using glycosynthases |
Publication Type | Journal Article |
Year of Publication | 2002 |
Authors | Tolborg, JF, Petersen, L, Jensen, KJ, Mayer, C, Jakeman, DL, WARREN, RAJ, Withers, SG |
Journal | JOURNAL OF ORGANIC CHEMISTRY |
Volume | 67 |
Pagination | 4143-4149 |
Date Published | JUN 14 |
ISSN | 0022-3263 |
Abstract | Enzymatic approaches for the preparation of oligosaccharides are interesting alternatives to traditional chemical synthesis, the main advantage being the regio- and stereoselectivity offered without the need for protecting groups. The use of solid-phase techniques offers easy workup procedures and the prospect of automatability. Here, we report the first application of glycosynthases to solid-phase oligosaccharide synthesis by use of the 51 kDa serine and glycine mutants of Agrobacterium sp. beta-glucosidase, Abg E358S and E358G. Acceptors were linked to PEGA resin through a backbone amide linker (BAL), and using these mutated enzymes, a galactose moiety was transferred from a donor sugar, U-D-galactosyl fluoride, with high efficiency (>90%) together with excellent recovery of material. Furthermore, it was demonstrated that a resin-bound model glycopeptide was also an acceptor for the glycosynthase. |
DOI | 10.1021/jo0163445 |