PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9737884-1 1998 The anticoagulant activation of the serpin antithrombin by heparin pentasaccharide DEFGH was previously shown to involve trisaccharide DEF first binding and inducing activation of the serpin, followed by disaccharide GH binding and stabilizing the activated state [Petitou et al. Disaccharides 204-216 UTP25 small subunit processome component Homo sapiens 83-86