β-1,4-Galactosyl Transferase catalyzes the transfer of galactose from UDP-galactose to the terminal N-acetylglucosamine residues on elongating oligosaccharide chains. It is also considered to be a biosynthetic enzyme of the Golgi apparatus. β-1,4-Galactosyl Transferase can also be found on the cell surface functioning as a cell-adhesion molecule during various cellular interactions by binding to N-acetylglucosamine containing oligosaccharide substrates or ligands in the extracellular matrix.
β-1,4-Galactosyl Transferase, Native (Bovine)
Enzyme Commission Number
1 U correspond to the amount of enzyme which transfers 1 μmol galactose from UDP-galactose to D-glucose per minute at pH 8.4 and 30°C in the presence of α-lactalbumin
lactose synthase; UDP-α-D-galactose-glucose galactosyltransferase; N-acetyllactosamine synthase; uridine diphosphogalactose-glucose galactosyltransferase; lactose synthetase; UDP-galactose:D-glucose 4-β-D-galactotransferase; UDP-galactose:D-glucose 4-β-D-galactosyltransferase; EC 188.8.131.52; 9030-11-9