PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1567869-8 1992 The latter experiments, taking advantage of mutations in residues putatively on either side of the FMN isoalloxazine ring, suggest subtle to severe changes in the binding of the flavin prosthetic groups and, perhaps, cooperative interactions of flavin binding to NADPH-cytochrome P450 reductase. isoalloxazine 103-116 cytochrome p450 oxidoreductase Rattus norvegicus 263-294