Ephrin type-A receptor 3 (EPHA3)

Receptor tyrosine kinase which binds promiscuously membrane-bound ephrin family ligands residing on adjacent cells, leading to contact-dependent bidirectional signaling into neighboring cells. The signaling pathway downstream of the receptor is known as forward signaling while the signaling pathway downstream of the ephrin ligand is known as reverse signaling.

Upon activation by EFNA5 modulates cell-cell adhesion, cytoskeletal organization and cell migration. Plays a role in cardiac cells migration and differentiation and regulates the formation of the atrioventricular canal and septum during development probably through activation by EFNA1.