PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 21070833-1 2011 P450 oxidoreductase (POR) transports electrons from NADPH to all microsomal cytochrome P450 enzymes, including steroidogenic P450c17, P450c21 and P450aro. NADP 52-57 cytochrome P450 family 17 subfamily A member 1 Homo sapiens 125-132