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  • Title: Relationship between losses in cytochrome oxidase activity and peroxidation of monosaturated phosphatidylcholines and phosphatidylethanolamines.
    Author: Santiago E, López-Moratalla N, Segovia JL.
    Journal: Rev Esp Fisiol; 1976 Sep; 32(3):231-7. PubMed ID: 185669.
    Abstract:
    Incubation of inner mitochondrial membranes from rat liver in the presence of inducers of peroxidation reactions, such as ascorbate or cysteine, produced a large loss in cytochrome oxidase activity parallel to the disappearance of phosphatidylcholine and phosphatidylethanolamine molecular species, which contained a saturated and an unsaturated fatty acid. The loss in enzyme activity was unrelated to alterations in other species of these phospholipids or other ones. These results may reflect the existence of specific associations within the membrane between cytochrome oxidase and monosaturated phosphatidylcholines and/or phosphatidylethanolamines.
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