Anti-CSMD3 antibodies are used in the immunodetection of the protein CUB and Sushi multiple domains 3. In humans, the canonical protein has a reported length of 3707 amino acid residues and a mass of 406 kDa. Its subcellular localization is in the cell membrane. Up to 5 different isoforms have been reported for this protein. It is reported to be weakly expressed in most tissues, except in the brain. A member of the CSMD protein family, CSMD3 is known to be involved in dendrite development. Post-translational modifications have been described, including glycosylation. Synonyms for this target antigen include CUB and sushi domain-containing protein 3 and CUB and sushi multiple domains protein 3. CSMD3 gene orthologs have been reported in the mouse, rat, frog, zebrafish, chimpanzee and chicken species. Some CSMD3 antibodies may have been used in research and have associated citations. Immunofluorescence is a widely used application for these antibodies. In addition, Western Blot is also a common application.