PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 10553719-12 1999 Both the demethylation and the denitrosation of tauromustine were increased 3-fold in liver microsomes from rat pretreated with phenobarbital, whereas treatment with cyanopregnenolone enhanced the denitrosation 11-fold, indicating the involvement of CYP3A. Phenobarbital 128-141 cytochrome P450 family 3 subfamily A member 4 Homo sapiens 250-255