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Yeast frataxin mutants display decreased superoxide dismutase activities crucial to promote protein oxidative damage

Iron overload is involved in several pathological conditions, including Friedreich ataxia, a disease caused by decreased expression of the mitochondrial protein frataxin. In a previous study, we identified 14 proteins selectively oxidized in yeast cells lacking Yfh1, the yeast frataxin homolog. Most of these were magnesium-binding proteins. Decreased Mn-SOD activity, oxidative damage to CuZn-SOD, and increased levels of chelatable iron were also observed in this model.

Read More: Yeast frataxin mutants display decreased superoxide dismutase activities crucial to promote protein oxidative damage

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