PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 15305215-2 2004 NMR analysis clearly indicated that the 2Dpy-containing tripeptides except the peptide in which AA1, AA3 = Aib, adopt a unique conformation with two intramolecular hydrogen bonds between 2Dpy-NH and a pyridine nitrogen and between AA3-NH and another pyridine nitrogen. pyridine 201-209 AA1 Homo sapiens 96-99 15305215-2 2004 NMR analysis clearly indicated that the 2Dpy-containing tripeptides except the peptide in which AA1, AA3 = Aib, adopt a unique conformation with two intramolecular hydrogen bonds between 2Dpy-NH and a pyridine nitrogen and between AA3-NH and another pyridine nitrogen. pyridine 250-258 AA1 Homo sapiens 96-99