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  • Title: Effect of oleic acid on mitochondrial cytochrome c oxidase activity.
    Author: Nagami M, Yoshida S, Saitoh T, Takeshita M, Ogawa T.
    Journal: Biochem Int; 1988 Oct; 17(4):763-71. PubMed ID: 2853632.
    Abstract:
    Both Km and Vmax values of cytochrome c oxidase for cytochrome c were elevated in oleic acid-incorporated mitochondria, whereas the amount of oleic acid incorporated into submitochondrial particles was smaller than that into mitochondria and the fatty acid had little effect on the enzyme activity. The degree of change in the bulk membrane fluidity was, however, almost the same in mitochondria and submitochondrial particles. Solubilized cytochrome c oxidase was insensitive to the effect of oleic acid. Oleic acid may act as a modifier of the interaction between cytochrome c oxidase and membrane lipids.
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