PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 20226765-6 2010 The enzyme beta4Gal-T7 transfers galactose to xylose during the synthesis of the tetrasaccharide linker sequence attached to a Ser residue of proteoglycans. Galactose 33-42 beta-1,4-galactosyltransferase 7 Homo sapiens 11-22