Incorporation of heme to microsomal cytochrome P-450 in the absence of protein biosynthesis.

Abstract

Determination of the heme and protein portions of phenobarbital (PB)-inducible and 3-methylcholanthrene inducible forms of cytochrome P-450, P-450(PB-1), and P-450(MC-1), in the liver microsomes of drug-treated animals indicated the presence of 20-30% of apo-cytochrome P-450 in both cases. Inhibition of protein synthesis by cycloheximide injection to the… (More)

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