the hepatic nuclear fraction isolated from 3-methylcholanthrene ( mc ) -treated rats contained enhanced levels of cytochrome p-450 and aryl hydrocarbon hydroxylase [ benzo ( a ) pyrene ( bp ) monooxygenase ] , whereas the activities of epoxide hydrase and reduced nicotinamide adenine dinucleotide phosphate-cytochrome c reductase and the concentration of cytochrome b5 were not altered .
C0010762
cytochrome p-450
C0003927
aryl hydrocarbon