PRKCG and autosomal dominant cerebellar ataxia: Spinocerebellar ataxia 14 (SCA14; OMIM 605361) is a rare autosomal dominant neurodegenerative disease caused by protein kinase Cγ gene (PRKCG) mutations, the incidence of which is 1%–4% of all autosomal dominant cerebellar ataxias (Verbeek et al., 2005; Chen et al., 2012).