Anti-EphA3

0.5mg/ml if reconstituted with 0.2ml sterile DI water. Ephrin Receptor EphA3, is also known as human embryo kinase(HEK) or Eph-like tyrosine kinase1(ETK1). Kinases that phosphorylate proteins on tyrosine residues(protein tyrosine kinases, PTKs), such as EPHA3, form a structurally related group of molecules that exhibit functional diversity. Genetic alterations that lead to the inappropriate activation or expression of PTKs may be oncogenic. Many growth factor receptors are PTKs, e.g., the receptors for epidermal growth factor(EGFR), platelet-derived growth factor(PDGFR1,PDGFR2), colony-stimulating factor-1(CSF1R), and stem cell growth factor. The EPHA3 gene is mapped to 3p11.2. Sequence comparison with other PTKs showed a high degree of homology with members of the EPH and ELK(EPHB1) families of receptor tyrosine kinases. Within axial nerves, establishment of discrete afferent and efferent pathways depends on coordinate signaling between coextending sensory and motor projections. Protein function: 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 referred to as forward signaling while the signaling pathway downstream of the ephrin ligand is referred to as reverse signaling. Highly promiscuous for ephrin-A ligands it binds preferentially EFNA5. Upon activation by EFNA5 regulates 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. Involved in the retinotectal mapping of neurons. May also control the segregation but not the guidance of motor and sensory axons during neuromuscular circuit development. [The UniProt Consortium]