B4GALT4 Protein, Human, Recombinant (His)β4Gal-T4, β-1, UDP-Galactose:β-N-Acetylglucosamine β-1, UDP-Galactose:Beta-N-Acetylglucosamine Beta-1, UDP-Gal:β-GlcNAc β-1, UDP-Gal:Beta-GlcNAc Beta-1, Beta4Gal-T4, Beta-1, b4Gal-T4, B4GALT4, 4-GalTase 4, 4-Galactosyltransferase 4