PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 3086746-7 1986 The molecule, a homodimer formed by disulphide-linked chains of relative molecular mass (Mr) 140,000, is identified by a mouse monoclonal alloantibody called BP-1. disulphide 36-46 BP1 Homo sapiens 158-162