Mitochondrial Myopathy, Infantile, Transient, also known as mitochondrial myopathy with reversible cytochrome c oxidase deficiency, is related to trmu deficiency and liver failure, infantile, transient, and has symptoms including facial paresis and weakness. An important gene associated with Mitochondrial Myopathy, Infantile, Transient is MT-TE (Mitochondrially Encoded TRNA-Glu (GAA/G)), and among its related pathways/superpathways are Metabolism and Respiratory electron transport, ATP synthesis by chemiosmotic coupling, and heat production by uncoupling proteins.. Affiliated tissues include liver and skeletal muscle, and related phenotypes are muscle weakness and myopathy