Mutations in COA7 cause spinocerebellar ataxia with axonal neuropathy

Higuchi et al. identify recessive mutations in the mitochondrial gene, cytochrome c oxidase assembly factor 7 (COA7) in four unrelated patients with an axonal-type motor and sensory neuropathy with ataxia. Genetic, histopathological, radiological and functional data support a causative role for loss-of-function COA7 mutations in the observed phenotype.

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