bovine galactosyltransferase ( lactose synthase ; ec 2.4.1.22 ) which catalyzes the transfer of galactose from udpgalactose to glycoproteins with n-acetylglucosamine as the terminal residue of their oligosaccharide side chains was used to label glycoproteins of mouse retina with [ 14c ] galactose .
C0016964
galactosyltransferase
C0022952
lactose synthase