Spinocerebellar Ataxia, Autosomal Recessive 4, also known as scar4, is related to spinocerebellar ataxia, autosomal recessive 24 and vps13d movement disorder, and has symptoms including muscular fasciculation, myoclonus and abnormal pyramidal signs. An important gene associated with Spinocerebellar Ataxia, Autosomal Recessive 4 is VPS13D (Vacuolar Protein Sorting 13 Homolog D), and among its related pathways/superpathways is Dopamine-DARPP32 Feedback onto cAMP Pathway. Affiliated tissues include spinal cord and cerebellum, and related phenotypes are abnormal pyramidal sign and gait ataxia