Spinocerebellar Ataxia, Autosomal Recessive 27, also known as scar27, is related to autosomal dominant cerebellar ataxia and spinocerebellar ataxia 27a. An important gene associated with Spinocerebellar Ataxia, Autosomal Recessive 27 is GDAP2 (Ganglioside Induced Differentiation Associated Protein 2). Affiliated tissues include spinal cord and cerebellum, and related phenotypes are hyperreflexia and cerebellar atrophy