Anti-myosin XVIIIA antibodies are used for the immunodetection of the protein encoded by the MYO18A gene. In humans, the canonical protein has a reported length of 2054 amino acid residues and a mass of 233.1 kDa. Its subcellular localization is in the Golgi and cytoplasm. Alternative splicing is reported to yield 6 different isoforms for this protein. A member of the Myosin protein family, it is believed to link Golgi membranes to the cytoskeleton and participate in the tensile force required for vesicle budding from the Golgi. Other names for this target antigen include 12 kDa TGF-beta-1-induced antiapoptotic factor, Putative TGFB1-induced anti-apoptotic factor 1, SP-A receptor subunit SP-R210 alphaS, and unconventional myosin-XVIIIa. Gene orthologs have been identified in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. A number of myosin XVIIIA antibodies have been mentioned in research publications and have associated citations. These antibodies are most commonly used in Western Blot experiments, among other applications.