TTBK2 and inherited neurodegenerative disorder: We previously showed that Tau tubulin kinase 2 (TTBK2), a kinase causally mutated in the hereditary neurodegenerative disorder spinocerebellar ataxia type 11 (SCA11) (Houlden et al., 2007), is an essential regulator of ciliogenesis (Goetz et al., 2012).