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  • Title: Modulation of 3-hydroxy-3-methyl glutaryl CoA reductase by 2,3-diphosphoglyceric acid.
    Author: Morin RJ, Noble NA, Srikantaiah MV.
    Journal: Experientia; 1984 Sep 15; 40(9):953-5. PubMed ID: 6468621.
    Abstract:
    Rat liver microsomal 3-hydroxy-3-methylglutaryl CoA (HMG-CoA) reductase was activated by 50% at a concentration of 0.4 mM 2,3-diphosphoglyceric acid (DPG) and by 11-fold at 10 mM DPG. DPG also prevented the inactivation of HMG-CoA reductase by ATP and Mg++. Rat liver microsomal HMG-CoA reductase prepared in the presence of 1 mM DPG was significantly more active than when prepared in the absence of DPG. Activation of the enzyme by DPG and protection of the enzyme against inhibition by ATP and Mg++ by DPG were also observed with solubilized HMG-CoA reductase.
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