Reactive oxygen species and the segregation of mtDNA sequence variants

Nature

Reactive oxygen species and the segregation of mtDNA sequence variants"


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Mutations in mitochondrial DNA (mtDNA) are an important cause of a group of human diseases collectively referred to as mitochondrial encephalomyopathies. Most pathogenic mtDNA mutations


coexist with wild-type genomes, and an oxidative phosphorylation defect is not manifest until the proportion of mutant genomes exceeds a particular cellular threshold. The pattern of


segregation of mtDNA mutations is thus a key determinant of the onset and severity of disease. The mechanisms regulating tissue-specific mtDNA segregation, however, remain largely unknown.


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Reactive oxygen species and the segregation of mtDNA sequence variants

Mutations in mitochondrial DNA (mtDNA) are an important cause of a group of human diseases collectively referred to as m...

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