Anti-EFR3A antibodies are used in the immunodetection of the protein EFR3 homolog A. In humans, the canonical protein has a reported length of 821 amino acid residues and a mass of 92.9 kDa. Its subcellular localization is in the cell membrane and cytoplasm. Up to 3 different isoforms have been reported for this protein. It is notably widely expressed in many tissue types. A member of the EFR3 protein family, EFR3A is a known component of the complex required to localize phosphatidylinositol 4-kinase (PI4K) to the plasma membrane. Post-translational modifications have been described, including palmitoylation. Synonyms for this target antigen include protein EFR3 homolog A. EFR3A gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. Some EFR3A antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. Immunofluorescence and Immunohistochemistry are also common applications.