PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 10570059-0 1999 Murine transgenic cells lacking DNA topoisomerase IIbeta are resistant to acridines and mitoxantrone: analysis of cytotoxicity and cleavable complex formation. Acridines 74-83 ATPase, class II, type 9B Mus musculus 50-56