Spinocerebellar Ataxia 2, also known as spinocerebellar ataxia type 2, is related to spinocerebellar ataxia 6 and spinocerebellar ataxia 7, and has symptoms including muscle rigidity, muscle spasticity and myoclonus. An important gene associated with Spinocerebellar Ataxia 2 is ATXN2 (Ataxin 2), and among its related pathways/superpathways are MECP2 and associated Rett syndrome and Maturation of protein E. The drugs Riluzole and Glutamic acid have been mentioned in the context of this disorder. Affiliated tissues include eye and spinal cord, and related phenotypes are progressive cerebellar ataxia and abnormal substantia nigra morphology