PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 3754413-3 1986 Both antithrombin and heparin cofactor activities of heparin cofactor II are inactivated by the arginine-specific reagent, 2,3-butanedione. Arginine 96-104 serpin family C member 1 Homo sapiens 5-17