PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 7688562-5 1993 COS-7 cells transfected with hCD40L (COS-7/hCD40L) induced human B cell activation as judged by the induction of homotypic aggregates of Epstein-Barr virus transformed and normal B cells. cos-7 0-5 B cell linker Homo sapiens 65-82