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    Biochem Med Metab Biol. 1991 Apr;45(2):204-8.

    3-Hydroxy-3-methylglutaryldithio-coenzyme A: a potent inhibitor of Pseudomonas mevalonii HMG-CoA reductase.

    Source

    Department of Chemistry, Brown University, Providence, Rhode Island 02912.

    Abstract

    3-Hydroxy-3-methyl-1-thionoglutaryl-coenzyme A, a dithioester analog of 3-hydroxy-3-methylglutaryl-CoA, has been enzymatically synthesized using the HMG-CoA synthase catalyzed condensation of acetyl-CoA with 3-oxo-1-thionobutyryl-CoA. HMGdithio-CoA is a potent inhibitor of Pseudomonas mevalonii HMG-CoA reductase. Inhibition was mainly competitive with respect to HMG-CoA with a Kis of 0.086 +/- .01 microM and noncompetitive with respect to NADH with a Kis of 3.7 +/- 1.5 microM and a Kii of 0.65 +/- .05 microM in the presence of 110 microM (R.S)-HMG-CoA.

    PMID:
    1679340
    [PubMed - indexed for MEDLINE]

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