Abstract

The transglycosylation reaction was done with a beta-galactanase from Penicillium citrinum. The regioselectivity in the transglycosylation reaction was studied using soy bean arabinogalactan as a donor and mono- or disaccharide derivatives containing beta-galactosyl residue as acceptors. We also synthesized oligosaccharides containing Gal beta 1-->4Gal sequence such as Gal beta 1-->4Gal beta1-->4Glc, Gal beta 1-->4Gal beta 1-->3GlcNac, Gal beta 1-->4Gal beta 1-->4GlcNAc, Gal beta 1-->4Gal beta 1-->6GlcNAc, and Gal beta 1-->4Gal beta 1-->3GalNAc for use in the total synthesis of complex sugar chains.

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