Anti-EF hand domain containing 2 antibodies enable researchers to detect and measure the EF hand domain containing 2 antigen in biological samples. This target is a reported synonym of the EFHC2 gene, which encodes EF-hand domain containing 2. This protein is a known microtubule inner protein (MIP) part of the dynein-decorated doublet microtubules (DMTs) in cilia axoneme, which is required for motile cilia beating. The human version of EF hand domain containing 2 has a canonical amino acid length of 749 residues and a protein mass of 87.4 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the cytoplasm of cells and notably expressed in the nasopharynx, lung, fallopian tube, cerebral cortex, and cerebellum.