Article
A stop-codon mutation in the human mtDNA cytochrome c oxidase I gene disrupts the functional structure of complex IV.
American journal of human genetics - 1 Sept 1999
Bruno C, Martinuzzi A, Tang Y, Andreu A L, Pallotti F, Bonilla E, Shanske S, Fu J, Sue C M, Angelini C, DiMauro S, Manfredi G
Abstract excerpt
We have identified a novel stop-codon mutation in the mtDNA of a young woman with a multisystem mitochondrial disorder. Histochemical analysis of a muscle-biopsy sample showed virtually absent cytochrome c oxidase (COX) stain, and biochemical studies confirmed an isolated reduction of COX activity. Sequence analysis of the mitochondrial-encoded COX-subunit genes identified a heteroplasmic G-->A transition at...
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