PMID: 3935180Aug 1, 1985

Reconstruction of a membrane monooxygenase cytochrome P 450-containing system in the liver using detergents in solution

Biokhimii︠a︡
I P KanaevaG I Bachmanova

Abstract

Emulgen 913, Triton N-101 and sodium cholate were compared for their reconstituting action on the dimethylaniline N-demethylation system containing cytochrome P-450 and NADPH-cytochrome P-450 reductase. The comparison showed that emulgen 913 is the most efficient detergent. The optimum molar ratio of the proteins and emulgen appeared to be equal to 1:1:600. Study on the mechanism of emulgen reconstituting action showed that this effect is due to the mixed complex formation between the cytochrome and reductase, the complexes containing five molecules of the flavoprotein and five molecules of cytochrome P-450. No formation of mixed protein aggregates or reconstitution was observed in the absence of the detergent or at its concentrations exceeding the optimum level.

Related Concepts

Methionine S-oxidase
Molecular Sieve Chromatography
Cytochrome P-450 Oxygenase
Synthetic Detergent
Microsomes, Liver
NADPH-Ferrihemoprotein Reductase
Oxidation-Reduction
Oxygenases
Solutions
Tensides

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