PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8899819-2 1996 Ac-Ser.Tyr-Ser-Nle4-Glu- His-DPhe7-Arg-Trp-Gly-Lys-Pro-Val-NH2(NDP-MSH), led to the discovery of tripeptide agonists possessing prolonged bioactivity in the frog skin assay. Arginine 35-38 proopiomelanocortin Homo sapiens 67-70