Anti-Tektin 3 antibodies are used in the immunodetection of the protein encoded by the TEKT3 gene. In humans, the canonical protein has a reported length of 490 amino acid residues and a mass of 56.6 kDa. Its subcellular localization is in the membrane, cytoplasmic vesicles, and cytoplasm. A member of the Tektin protein family, it is a known microtubule inner protein (MIP) part of the dynein-decorated doublet microtubules (DMTs) in cilia and flagellar axoneme. Post-translational modifications have been described, including O-glycosylation and protein cleavage. Other names for this target antigen include testicular microtubules-related protein.