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  • Title: Interaction of ubiquinone and vitamin K3 with mitochondrial succinate-ubiquinone oxidoreductase.
    Author: Kotlyar AB, Gutman M, Ackrell BA.
    Journal: Biochem Biophys Res Commun; 1992 Aug 14; 186(3):1656-62. PubMed ID: 1510689.
    Abstract:
    Two new methods have been devised for measuring fumarate reduction by beef heart succinate-ubiquinone oxidoreductase with quinols as electron donors. In one assay the quinone is maintained in the reduced state by coupling fumarate reduction with the DT-diaphorase reaction, in the other assay by the presence of excess dithionite. The advantages of these methods are discussed, along with preliminary characterization of the quinol-protein interaction.
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