Mitochondrial Dna Depletion Syndrome 5, also known as succinate-coa ligase deficiency, is related to mitochondrial dna depletion syndrome 9 and methylmalonic acidemia, and has symptoms including athetosis, muscle spasticity and ophthalmoplegia. An important gene associated with Mitochondrial Dna Depletion Syndrome 5 is SUCLA2 (Succinate-CoA Ligase ADP-Forming Subunit Beta), and among its related pathways/superpathways are glycolysis (BioCyc) and Pyruvate metabolism. Affiliated tissues include brain and skeletal muscle, and related phenotypes are seizure and ptosis