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  • Title: Human mitochondrial malic enzyme variants: properties of the different polymorphic forms.
    Author: Burchell A, Crosby A, Cohen PT.
    Journal: Ann Hum Genet; 1977 Jul; 41(1):1-7. PubMed ID: 921213.
    Abstract:
    1. The human mitochondrial malic enzyme polymorphism was found to exist in the Scottish population with similar allele frequencies to those reported previously for Caucasian populations. 2. The mitochondrial malic enzyme variants MEM1, MEM2-1 and MEM2 which form the polymorphism have been separated from the cytoplasmic malic enzyme and partially purified by DEAE Sephadex chromatography. 3. The properties of the three mitochondrial malic enzyme variants were examined. No differences were found between the variants in Km for NADP, Km for pyruvate, Mn2+ and Mg2+ activation, Ki for dicumarol, heat stability, pH or ionic strength optimum.
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