We previously described the spinocerebellar ataxia subtype 37 (SCA37) in four unrelated Spanish kindreds caused by an unstable intronic (ATTTC)n pentanucleotide repeat insertion, located within an (ATTTT)n repeat tract in the 5’non-coding regulatory region of the DAB1 gene encoding the Reelin adaptor protein, which is implicated in neuronal migration (Serrano-Munuera et al. 2013; Corral-Juan et al. 2018). The gene discussed is DAB1; the disease is spinocerebellar ataxia type 37.