Anti-MSN antibodies are used in the immunodetection of the protein moesin. In humans, the canonical protein has a reported length of 577 amino acid residues and a mass of 67.8 kDa. Its subcellular localization is in the cell membrane. It is notably expressed in many tissues, such as the bone marrow and cerebellum. MSN is known to be involved with the regulation of gene expression. Post-translational modifications have been described, including phosphorylation. The MSN gene has been associated with the disease, Immunodeficiency. Synonyms for this target antigen include IMD50, epididymis luminal protein 70, membrane-organizing extension spike protein, and HEL70. MSN gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. Over 440 citations in the literature describe the use of MSN antibodies in research. Western Blot is a widely used application for these antibodies. Flow Cytometry, Immunocytochemistry, Immunofluorescence, and Immunohistochemistry are also common applications.