Acceptor hydroxyl group mapping for calf thymus α-(1 → 3) - galactosyltransferase and enzymatic synthesis of α-d-Galp-(1 → 3)-β-d-Gal p-(1 → 4)-βd-GlcpNAc analogs
作者:Keiko Sujino、Carles Malet、Ole Hindsgaul、Monica M. Palcic
DOI:10.1016/s0008-6215(97)00268-1
日期:1997.12
Abstract The epitope of the acceptor substrate for α -(1 → 3)-galactosyltransferase from calf thymus has been mapped by using a series of mono-deoxygenated and mono- O -alkylated Type II (β- d - Gal p-(1 → 4)-β- d - Glc p NAc ) disaccharides. The 4-OH group of the β- d -galactopyranosyl residue is a key polar group essential for glycosyl transfer, tolerating neither deoxygenation nor O -alkylation