PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 3814152-2 1987 All four inhibitors with C-terminal aldehyde, leupeptin, chymostatin, Boc-Gln-Leu-Lys-H and D-Phe-Pro-Arg-H completely blocked PME activity. chymostatin 57-68 cystatin B Homo sapiens 127-130