Introducing a novel human mtDNA mutation into the Paracoccus denitrificans COX I gene explains functional deficits in a patient.

Abstract excerpt

We identified a novel mutation (S142F) in the human mtDNA CO I gene in a patient with a clinical phenotype resembling mitochondrial cardioencephalomyopathy. To substantiate pathogenicity, we modeled the identified mutation in the homologous gene in Paracoccus denitrificans and analyzed the biochemical consequences. We observed a deleterious effect on enzyme activity, with a lack of heme a3. Taking advantage of...

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