PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1412223-4 1992 The modified antithrombin III retained a reduced affinity for heparin (eluting at 0.3M NaCl from heparin Agarose) and was observed to be a competitive inhibitor of the heparin-dependent rate of inhibition of thrombin by native antithrombin III. Sepharose 105-112 coagulation factor II, thrombin Homo sapiens 17-25