PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8745399-5 1996 Although PPACK forms covalent bonds to both serine and the histidine of the catalytic triad of thrombin, neither BMS-186282 nor BMS-189090 bind covalently and only BMS-186282 forms a hydrogen bond to the serine of the catalytic triad. Histidine 59-68 coagulation factor II, thrombin Homo sapiens 95-103