Palcic MM, Srivastava OP, Hindsgaul O. Transfer of D-galactosyl groups to 6-O-substituted 2-acetamido-2-deoxy-D-glucose residues by use of bovine D-galactosyltransferase.
Carbohydr Res 1987;
159:315-24. [PMID:
3105882 DOI:
10.1016/s0008-6215(00)90224-6]
[Citation(s) in RCA: 49] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Bovine D-galactosyltransferase was found to transfer D-galactose from UDP-galactose to 6-O-substituted 2-acetamido-2-deoxy-beta-D-glucopyranosides. The resulting 6-O-substituted N-acetyllactosamines were readily synthesized in milligram amounts and conveniently isolated on a reverse-phase support when prepared as the 8-methoxycarbonyloctyl glycosides. The 6-O-substitution tolerated by the enzyme include an alpha-L-fucopyranosyl group and the methyl ester of alpha-linked N-acetylneuraminic acid, but not the free acid itself. The product trisaccharides were characterized by 1H-n.m.r. spectroscopy and fast-atom-bombardment mass spectrometry.
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