Article
Mechanism of somatic mitochondrial DNA mutations associated with age and diseases.
Biochimica et biophysica acta - 24 May 1995
Ozawa T
Abstract excerpt
Mitochondrial DNA (mtDNA) that codes protein subunits essential for the maintenance of mitochondrial ATP synthesis system acquires mutations at a much higher rate than that in nuclear DNA. Recent study has revealed that somatically acquired mutations such as deletions in mtDNA are caused mainly by oxygen free-radical damage. Cumulative accumulation of these somatic mutations during the life of an individual...
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