PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 6885772-7 1983 It is concluded that the 6-sulfate group on the N-acetylglucosamine residue is of critical importance to the interaction between heparin and antithrombin. Sulfates 27-34 serpin family C member 1 Homo sapiens 141-153