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Dog Liver 3-Hydroxy-3-Methylglutaryl Coenzyme A Reductase

Peter P.K. Ho, Michail A. Esterman, Richard D. Towner, Robert K. Turner

Open publisher page 4 citations

Abstract

A rapid and sensitive assay method for 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMG-coA reductase, EC 1.1.1.34) is described. HMG-coA reductase is demonstrated in dog liver microsomes, and the converted reaction product has been identified as mevalonolactone. The enzyme activity undergoes cyclic variation and increases by more than tenfold 5 h after feeding. The properties of dog liver enzyme are generally similar to the rat liver enzyme in the method of solubilization, cold inactivation, pH optimum, and Km values.

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What this paper is about

A rapid and sensitive assay method for 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMG-coA reductase, EC 1.1.1.34) is described. HMG-coA reductase is demonstrated in dog liver microsomes, and the converted reaction product has been identified as mevalonolactone. The enzyme activity undergoes cyclic variation and increases by more than tenfold 5 h after feeding. The properties of dog liver enzyme are generally similar to the rat liver enzyme in the method of solubilization, cold inactivation, pH optimum, and Km values.

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Available abstract

A rapid and sensitive assay method for 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMG-coA reductase, EC 1.1.1.34) is described. HMG-coA reductase is demonstrated in dog liver microsomes, and the converted reaction product has been identified as mevalonolactone. The enzyme activity undergoes cyclic variation and increases by more than tenfold 5 h after feeding. The properties of dog liver enzyme are generally similar to the rat liver enzyme in the method of solubilization, cold inactivation, pH optimum, and Km values.

Key concepts: Coenzyme A, Reductase, Biochemistry, Chemistry, Medicine, Enzyme

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