Anti-MAGUK p55 scaffold protein 7 antibodies are used for the immunodetection of the protein encoded by the MPP7 gene. In humans, the canonical protein has a reported length of 576 amino acid residues and a mass of 65.5 kDa. Its subcellular localization is in the cell membrane and cytoplasm. Alternative splicing is reported to yield 2 different isoforms for this protein. A member of the MAGUK protein family, it is known to act as a important adapter that promotes epithelial cell polarity and tight junction formation via its interaction with DLG1. Post-translational modifications have been described, including phosphorylation. Other names for this target antigen include membrane palmitoylated protein 7, membrane protein, palmitoylated 7 (MAGUK p55 subfamily member 7), and MAGUK p55 subfamily member 7. Gene orthologs have been identified in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species.