Anti-MAGI3 antibodies are used in the immunodetection of the protein membrane associated guanylate kinase, WW and PDZ domain containing 3. In humans, the canonical protein has a reported length of 1481 amino acid residues and a mass of 162.9 kDa. Its subcellular localization is in the nucleus and cell membrane. Up to 4 different isoforms have been reported for this protein. It is widely expressed across many tissue types. A member of the MAGUK protein family, MAGI3 is known to act as a scaffolding protein at cell-cell junctions, thereby regulating various cellular and signaling processes. Synonyms for this target antigen include membrane-associated guanylate kinase inverted 3, membrane-associated guanylate kinase-related 3, and membrane-associated guanylate kinase, WW and PDZ domain-containing protein 3. MAGI3 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. Some MAGI3 antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. In addition, Immunofluorescence is also a common application.