Anti-KIF21A antibodies are used in the immunodetection of the protein kinesin family member 21A. In humans, the canonical protein has a reported length of 1674 amino acid residues and a mass of 187.2 kDa. Its subcellular localization is in the cytoplasm. Up to 6 different isoforms have been reported for this protein. It is notably expressed in many tissues, such as the bronchus and fallopian tube. It is a member of the Kinesin protein family. The KIF21A gene has been associated with the disease, Fibrosis of extraocular muscles. Synonyms for this target antigen include kinesin-like protein KIF2, renal carcinoma antigen NY-REN-62, and kinesin-like protein KIF21A. KIF21A gene orthologs have been reported in the mouse, rat, bovine, frog, chimpanzee and chicken species. These Kif21a antibodies are widely used in Western Blot experiments, among other applications.