PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 6207554-2 1984 For neurochemical purposes, it is interesting that the Substance P is convered by Depeptidyl-aminopeptidase IV (DP IV), liberating dipeptides. Dipeptides 131-141 tachykinin precursor 1 Homo sapiens 55-66