PMID-sentid Pub_year Sent_text compound_name comp_offset prot_official_name organism prot_offset 3501707-5 1987 Low molecular weight cysteine proteinase inhibitors ACPI (cystatin A) and NCPI (cystatin B) inhibited the cathepsins, but not the high molecular weight proteinase. ncpi 74-78 cystatin B Homo sapiens 80-90