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A mitochondrial disease due to a defect in mitochondrial protein synthesis resulting in deficiency of respiratory chain complexes I, III and IV in the cardiac and skeletal muscle and brain. The disease has characteristics of severe hypertrophic cardiomyopathy, pulmonary hypoplasia, muscle weakness and neurological involvement. Caused by homozygous or compound heterozygous mutation in the AARS2 gene on chromosome 6p21.
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