Anti-Growth Associated Protein 43 antibodies are used for the immunodetection of the protein encoded by the GAP43 gene. In humans, the canonical protein has a reported length of 238 amino acid residues and a mass of 24.8 kDa. Its subcellular localization is in the cell membrane. Alternative splicing is reported to yield 2 different isoforms for this protein. A member of the Neuromodulin protein family, it is known to be associated with nerve growth. Post-translational modifications have been described, including palmitoylation and phosphorylation. Other names for this target antigen include PP46, neuromodulin, axonal membrane protein GAP-43, calmodulin-binding protein P-57, nerve growth-related peptide GAP43, and B-50. Gene orthologs have been identified in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. Over 410 citations in the literature describe the use of Growth Associated Protein 43 antibodies in research. Western Blot is a widely used application for these antibodies. Immunofluorescence and Immunohistochemistry are also common applications.