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  • Title: [Purification and properties of NADP-dependent isocitrate dehydrogenase from the bovine adrenal cortex].
    Author: Taranda NI, Vinogradov VV, Strumilo SA.
    Journal: Ukr Biokhim Zh (1978); 1987; 59(1):24-9. PubMed ID: 3810886.
    Abstract:
    NADP-dependent isocitrate dehydrogenase (EC 1.1.42) was isolated and 430 times purified from the hyaloplasm fraction of bull adrenal cortex using fractionation by ammonium sulphate and acetone, heat treatment, chromatography on DEAE-Sephadex A-50, gel-filtration on Sephadex G-200 and affinity chromatography on 2',5'-ADP-sepharose 4B. The specific activity of homogeneous enzyme is 60 units per 1 mg of protein at 30 degrees C, yield--34%, pH optimum--8.0, molecular weight, determined by gel filtration on Sephadex G-200, is 96 kDa. The preparation electrophoresis in PAAG in the presence of DS-Na reveals one protein fraction with the mobility corresponding to that of protein having molecular weight of 46 kDa. The data obtained evidence for a dimer structure of the isocitrate dehydrogenase molecule from bull adrenals.
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