Anti-TTBK2 antibodies are used in the immunodetection of the protein tau tubulin kinase 2. In humans, the canonical protein has a reported length of 1244 amino acid residues and a mass of 137.4 kDa. Its subcellular localization is in the nucleus, cell projections, and cytoplasm. Up to 3 different isoforms have been reported for this protein. It is notably expressed in many tissues, such as the bronchus and fallopian tube. A member of the CK1 Ser/Thr protein kinase protein family, TTBK2 is reported to be a serine/threonine kinase that acts as a key regulator of ciliogenesis: controls the initiation of ciliogenesis by binding to the distal end of the basal body and promoting the removal of CCP110, which caps the mother centriole, leading to the recruitment of IFT proteins, which build the ciliary axoneme. TTBK2 gene orthologs have been reported in the mouse, rat, bovine, frog, chimpanzee and chicken species. A number of TTBK2 antibodies have been mentioned in research publications and have associated citations. Immunohistochemistry is a widely used application for these antibodies. ELISA and Western Blot are also common applications.