Mitochondrial Complex Iv Deficiency, Nuclear Type 1, also known as cytochrome c oxidase deficiency, is related to cox deficiency, infantile mitochondrial myopathy and mitochondrial myopathy, infantile, transient, and has symptoms including ataxia, dyspnea and seizures. An important gene associated with Mitochondrial Complex Iv Deficiency, Nuclear Type 1 is SURF1 (SURF1 Cytochrome C Oxidase Assembly Factor), and among its related pathways/superpathways are Metabolism and Cellular responses to stimuli. Affiliated tissues include liver and brain, and related phenotypes are failure to thrive and ataxia