ENTRY       EC 2.4.1.179
NAME        Lactosylceramide beta-1,3-galactosyltransferase
CLASS       Transferases
            Glycosyltransferases
            Hexosyltransferases
SYSNAME     UDPgalactose:D-galactosyl-1,4-beta-D-glucosyl-R
            $ beta-1,3-galactosyltransferase
REACTION    UDPgalactose + D-Galactosyl-1,4-beta-D-glucosyl-R = UDP +
            D-Galactosyl-1,3-beta-D-galactosyl-1,4-beta-D-glucosyl-R
SUBSTRATE   UDPgalactose
            D-Galactosyl-1,4-beta-D-glucosyl-R
PRODUCT     UDP
            D-Galactosyl-1,3-beta-D-galactosyl-1,4-beta-D-glucosyl-R
COMMENT     R may be an oligosaccharide or a glycolipid; lactose can also act
            as acceptor, more slowly. Involved in the elongation of
            oligosaccharide chains, especially in glycolipids.
DBLINKS     University of Geneva ENZYME DATA BANK: 2.4.1.179
            WIT (What Is There) Metabolic Reconstruction: 2.4.1.179
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