4bb4

Structural highlights

Function

[EPHB4_HUMAN] Receptor tyrosine kinase which binds promiscuously transmembrane ephrin-B 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. Together with its cognate ligand/functional ligand EFNB2 plays a central role in heart morphogenesis and angiogenesis through regulation of cell adhesion and cell migration. EPHB4-mediated forward signaling controls cellular repulsion and segregation form EFNB2-expressing cells. Plays also a role in postnatal blood vessel remodeling, morphogenesis and permeability and is thus important in the context of tumor angiogenesis.^{[1] [2]}

See Also

• Ephrin receptor

References

1. ↑ Fuller T, Korff T, Kilian A, Dandekar G, Augustin HG. Forward EphB4 signaling in endothelial cells controls cellular repulsion and segregation from ephrinB2 positive cells. J Cell Sci. 2003 Jun 15;116(Pt 12):2461-70. Epub 2003 May 6. PMID:12734395 doi:10.1242/jcs.00426
2. ↑ Erber R, Eichelsbacher U, Powajbo V, Korn T, Djonov V, Lin J, Hammes HP, Grobholz R, Ullrich A, Vajkoczy P. EphB4 controls blood vascular morphogenesis during postnatal angiogenesis. EMBO J. 2006 Feb 8;25(3):628-41. Epub 2006 Jan 19. PMID:16424904 doi:10.1038/sj.emboj.7600949
3. ↑ Vasbinder MM, Aquila B, Augustin M, Chen H, Cheung T, Cook D, Drew L, Fauber BP, Glossop S, Grondine M, Hennessy EJ, Johannes J, Lee S, Lyne PD, Mortl M, Omer C, Palakurthi S, Pontz T, Read J, Sha L, Shen M, Steinbacher S, Wang H, Wu A, Ye M. Discovery and Optimization of a Novel Series of Potent Mutant B-Raf V600E Selective Kinase Inhibitors. J Med Chem. 2013 Feb 11. PMID:23398453 doi:http://dx.doi.org/10.1021/jm301658d