PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 3191505-8 1988 Chemical-shift correlations proved to be useful in elucidating the structure of a unique ganglioside bearing an internal beta-D-Galp-(1----4)-[alpha-L-Fucp-(1----3)]-beta-D-GlcpNAc-(1---- 3) residue ("X-trisaccharide") with an alpha-NeuAc-(2----6)-substituted terminal group. alpha-neuac 227-238 galanin like peptide Homo sapiens 128-132