PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9230468-6 1997 The possibility of a beta-turn structure for the crucial Gly-Pro-Gly-Arg sequence has been confirmed by 2D NMR experiments. Glycine 57-60 amyloid beta precursor protein Homo sapiens 19-25 9230468-6 1997 The possibility of a beta-turn structure for the crucial Gly-Pro-Gly-Arg sequence has been confirmed by 2D NMR experiments. Glycine 65-68 amyloid beta precursor protein Homo sapiens 19-25