Anti-EPHA1 antibodies are used in the immunodetection of the protein EPH receptor A1. In humans, the canonical protein has a reported length of 976 amino acid residues and a mass of 108.1 kDa. Its subcellular localization is in the cell membrane. Up to 3 different isoforms have been reported for this protein. It is notably expressed in several carcinomas. A member of the Tyr protein kinase protein family, EphA1 is a known receptor tyrosine kinase which binds promiscuously membrane-bound ephrin-A family ligands residing on adjacent cells, leading to contact-dependent bidirectional signaling into neighboring cells. Synonyms for this target antigen include EPHT, EPHT1, ephrin type-A receptor 1, eph tyrosine kinase 1, erythropoietin-producing hepatoma amplified sequence, and EPH. EPHA1 gene orthologs have been reported in the mouse, rat, bovine, chimpanzee and chicken species. A number of EphA1 antibodies have been mentioned in research publications and have associated citations. Western Blot is a widely used application for these antibodies. ELISA and Immunohistochemistry are also common applications.