PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 20188793-4 2010 Here we are reporting that mutations in the FMN binding domain of POR may reduce CYP3A4 activity, potentially influencing drug and steroid metabolism; and the loss of CYP3A4 activity may be correlated to the reduction of cytochrome b(5) by POR. Steroids 131-138 cytochrome P450 family 3 subfamily A member 4 Homo sapiens 81-87