Anti-MYO18B antibodies are used in the immunodetection of the protein myosin XVIIIB. In humans, the canonical protein has a reported length of 2567 amino acid residues and a mass of 285.2 kDa. Its subcellular localization is in the nucleus and cytoplasm. Up to 3 different isoforms have been reported for this protein. It is notably expressed in cardiac and skeletal muscles. A member of the Myosin protein family, MYO18B is suspected to be involved in intracellular trafficking of the muscle cell when in the cytoplasm, whereas entering the nucleus, may be involved in the regulation of muscle specific genes. The MYO18B gene has been associated with the disease, Klippel-Feil syndrome. Synonyms for this target antigen include unconventional myosin-XVIIIb and myosin 18B. MYO18B gene orthologs have been reported in the mouse, rat, bovine, frog, chimpanzee and chicken species. A number of MYO18B antibodies have been mentioned in research publications and have associated citations. Immunohistochemistry is a widely used application for these antibodies. In addition, ELISA is also a common application.