2GSF, 2QO7, 2QO9, 2QOB, 2QOC, 2QOD, 2QOF, 2QOI, 2QOK, 2QOL, 2QON, 2QOO, 2QOQ, 3DZQ, 3FXX, 3FY2, 4G2F, 4GK2, 4GK3, 4GK4, 4L0P, 4P4C, 4P5Q, 4P5Z, 4TWN, 4TWO204213837ENSG00000044524ENSMUSG00000052504P29320P29319Q8BRB1NM_005233NM_182644NM_010140NM_001362452NP_005224NP_872585NP_034270NP_001349381EPH receptor A3 (ephrin type-A receptor 3) is a protein that in humans is encoded by the EPHA3 gene.2gsf: The Human Epha3 Receptor Tyrosine Kinase and Juxtamembrane Region EPH receptor A3 (ephrin type-A receptor 3) is a protein that in humans is encoded by the EPHA3 gene. This gene belongs to the ephrin receptor subfamily of the protein-tyrosine kinase family. EPH and EPH-related receptors have been implicated in mediating developmental events, particularly in the nervous system. Receptors in the EPH subfamily typically have a single kinase domain and an extracellular region containing a Cys-rich domain and 2 fibronectin type III repeats. The ephrin receptors are divided into 2 groups based on the similarity of their extracellular domain sequences and their affinities for binding ephrin-A and ephrin-B ligands. This gene encodes a protein that binds ephrin-A ligands. Two alternatively spliced transcript variants have been described for this gene. EPH receptor A3 has been shown to interact with EFNB2 and EFNA5.