PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 6196237-3 1983 Immunoglobulin G (IgG) fraction thus prepared was covalently attached on a Sepharose CL-4B and used as an immunoadsorbent of serum TBG. Sepharose CL 4B 75-90 serpin family A member 7 Homo sapiens 131-134