PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 15698577-2 2005 Especially the CYP3A4 and CYP3A5 enzymes play a significant role in the metabolism of numerous exogenous (drugs, pollutants, procarcinogens) and endogenous (steroids, bile acids) compounds. Steroids 157-165 cytochrome P450 family 3 subfamily A member 4 Homo sapiens 15-21