It is worth noting that mitochondrial dysfunction has also been identified in other forms of Spinocerebellar Ataxia and spastic ataxias, including Friedreich’s ataxia (FXN), SCA type 28 (AFG3L2), and Autosomal Recessive Spastic Ataxia type 4 (MTPAP) [28,32]. The gene discussed is AFG3L2; the disease is cerebellar ataxia.