ID 2.4.1.38 DE beta-N-acetylglucosaminylglycopeptide beta-1,4-galactosyltransferase. AN GalT. AN glycoprotein 4-beta-galactosyltransferase. AN thyroid galactosyltransferase. AN UDP-galactose--glycoprotein galactosyltransferase. CA an N-acetyl-beta-D-glucosaminyl derivative + UDP-alpha-D-galactose = CA a beta-D-galactosyl-(1->4)-N-acetyl-beta-D-glucosaminyl derivative + H(+) CA + UDP. CC -!- Terminal N-acetyl-beta-D-glucosaminyl residues in polysaccharides, CC glycoproteins and glycopeptides can act as acceptor. CC -!- High activity is shown toward such residues in branched-chain CC polysaccharides when these are linked by beta-1,6 links to galactose CC residues; lower activity toward residues linked to galactose by beta- CC 1,3 links. CC -!- A component of EC 2.4.1.22. DR P08037, B4GT1_BOVIN; P15291, B4GT1_HUMAN; P15535, B4GT1_MOUSE; DR P80225, B4GT1_RAT ; Q80WN9, B4GT2_CRIGR; O60909, B4GT2_HUMAN; DR Q9Z2Y2, B4GT2_MOUSE; Q5EA87, B4GT3_BOVIN; Q80WN8, B4GT3_CRIGR; DR O60512, B4GT3_HUMAN; Q91YY2, B4GT3_MOUSE; Q5NVN3, B4GT3_PONAB; DR Q6P768, B4GT3_RAT ; //