PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2912373-7 1989 Studies of the reaction kinetics established that in the absence of cytochrome b5, methoxyflurane and benzphetamine are competitive inhibitors, and that in the presence of cytochrome b5, benzphetamine and methoxyflurane are two alternate substrates in competition for a single site on the same enzyme. Methoxyflurane 205-219 cytochrome b5 Oryctolagus cuniculus 172-185 2912373-0 1989 Methoxyflurane acts at the substrate binding site of cytochrome P450 LM2 to induce a dependence on cytochrome b5. Methoxyflurane 0-14 cytochrome b5 Oryctolagus cuniculus 99-112 2912373-4 1989 To determine whether the requirement for cytochrome b5 for methoxyflurane oxidation is mediated by an allosteric effect on cytochrome P450 LM2 or cytochrome P450 reductase, we have investigated whether this anesthetic can induce a role for cytochrome b5 in benzphetamine metabolism. Methoxyflurane 59-73 cytochrome b5 Oryctolagus cuniculus 41-54 2765333-8 1989 In addition, purified cytochrome P450 3a catalysed the metabolism of enflurane, sevoflurane and methoxyflurane, and the oxidation of these anaesthetics by cytochrome P450 3a was stimulated four-fold by cytochrome b5, a protein which serves as an alternate source of electrons for some cytochrome P450 reactions. Methoxyflurane 96-110 cytochrome b5 Oryctolagus cuniculus 202-215 2912373-8 1989 These results all indicate that the methoxyflurane-induced cytochrome b5 dependence of the mixed function oxidase cytochrome P450 LM2 system is a direct result of the interaction between methoxyflurane and the substrate binding site of cytochrome P450 LM2 and suggest the focus of future studies of this question. Methoxyflurane 36-50 cytochrome b5 Oryctolagus cuniculus 59-72 2912373-8 1989 These results all indicate that the methoxyflurane-induced cytochrome b5 dependence of the mixed function oxidase cytochrome P450 LM2 system is a direct result of the interaction between methoxyflurane and the substrate binding site of cytochrome P450 LM2 and suggest the focus of future studies of this question. Methoxyflurane 187-201 cytochrome b5 Oryctolagus cuniculus 59-72 2988561-0 1985 Obligatory role of cytochrome b5 in the microsomal metabolism of methoxyflurane. Methoxyflurane 65-79 cytochrome b5 Oryctolagus cuniculus 19-32 2988561-6 1985 The antibody to cytochrome b5 was able to inhibit 75% of the microsomal metabolism of methoxyflurane. Methoxyflurane 86-100 cytochrome b5 Oryctolagus cuniculus 16-29 2988561-10 1985 This suggests that cytochrome b5 was required for the microsomal metabolism of methoxyflurane. Methoxyflurane 79-93 cytochrome b5 Oryctolagus cuniculus 19-32 2988561-11 1985 It is possible that cytochrome b5 functioned in the metabolism of methoxyflurane by retaining a specific conformation of cytochrome P-450 and not by transferring the second electron to cytochrome P-450. Methoxyflurane 66-80 cytochrome b5 Oryctolagus cuniculus 20-33 2988561-15 1985 The study demonstrated that cytochrome b5 was obligatory for the microsomal metabolism of methoxyflurane, whereas it was not required for the microsomal N-demethylation of benzphetamine. Methoxyflurane 90-104 cytochrome b5 Oryctolagus cuniculus 28-41