PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 31515282-5 2019 Like etoposide, since PR-619 affected TOP2 enzyme activity in in vitro enzyme assays as well as in live cells, we conclude that PR-619 interacts directly with TOP2A and TOP2B. Praseodymium 128-130 DNA topoisomerase II beta Homo sapiens 169-174