PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 27214780-5 2016 In addition to a phosphonate warhead, these dipeptides possess two benzguanidine moieties as arginine mimetics to provide affinity for matriptase-2 by binding to the S1 and S3/S4 subpockets, respectively. Dipeptides 44-54 transmembrane serine protease 6 Homo sapiens 135-147