PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2776132-5 1989 Introduction of substituents at either the O-3 or O-4 of 2-acetamido-2-deoxy-D-glucose produced large differences in retention: lacto-N-tetraose and lacto-N-neotetraose [beta-D-Gal-(1----4)-beta-D-GlcpNAc-(1----3)-beta-D-Galp-(1----4)-D-Glc] could be separated by more than 8 min. Acetylglucosamine 57-86 galanin like peptide Homo sapiens 221-225