PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11123279-5 2001 Interestingly, the peptide Z-Val-Ala-DL-Asp-fluoromethylketone (a broad-spectrum caspase inhibitor) reduces, but does not abolish, phosphatidylserine exposure, suggesting that Nef also activates a caspase-independent apoptotic pathway. z-val-ala-dl-asp-fluoromethylketone 27-62 S100 calcium binding protein B Homo sapiens 176-179