Tau-tubulin kinase 2 (TTBK2) forms a complex with centrosomal protein 164kDa (Cep164) of the distal appendages. It also stimulates processes involved in ciliogenesis and recruitment of intraflagellar transport proteins. It has been shown th at TTBK2 works upstream of the Cep164 gene and functions in the assemblage of distal appendages. The kinase also regulates the glucose carrier sodium-glucose linked transporter 1 (SGLT1) and increases the number of SGLT1 proteins in the cell membrane. Mutations in the gene encoding it is linked to spinocerebellar ataxia type 11.
