PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2513475-4 1989 They grow in medium containing hypoxanthine, aminopterin, and thymidine plus IFN and are killed by 6-thioguanine plus IFN. Aminopterin 45-56 interferon alpha 1 Homo sapiens 118-121