CST, 6347S, Phospho-EphA2 (Ser897) (D9A1) Rabbit Monoclonal Antibody

Monoclonal Antibody for studying EphA2 (Ser897) phosphate. Validated for Western Blotting,Immunoprecipitation,Immunohistochemistry (Paraffin). Available in 2 sizes. Highly specific and rigorously validated in-house, Phospho-EphA2 (Ser897) (D9A1) Rabbit Monoclonal Antibody (CST #6347) is ready to ship. Product Usage Information Western Blotting: 1:1000 Immunoprecipitation: 1:100 Immunohistochemistry (Paraffin): 1:8000 Storage Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at -20°C. Do not aliquot the antibody. For a carrier free (BSA and azide free) version of this product see product # 16662 . Protocol Available protocols: Western Blotting, Immunoprecipitation, Immunohistochemistry (Paraffin) Specificity / Sensitivity Phospho-EphA2 (Ser897) (D9A1) Rabbit Monoclonal Antibody recognizes endogenous levels of EphA2 protein only when phosphorylated at Ser897. Species Reactivity: Human, Mouse Source / Purification Monoclonal antibody is produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Ser897 of human EphA2 protein. Background The Eph receptors are the largest known family of receptor tyrosine kinases (RTKs). They can be divided into two groups based on sequence similarity and on their preference for a subset of ligands: EphA receptors bind to a glycosylphosphatidylinositol-anchored ephrin A ligand; EphB receptors bind to ephrin B proteins that have a transmembrane and cytoplasmic domain (1,2). Research studies have shown that Eph receptors and ligands may be involved in many diseases including cancer (3). Both ephrin A and B ligands have dual functions. As RTK ligands, ephrins stimulate the kinase activity of Eph receptors and activate signaling pathways in receptor-expressing cells. The ephrin extracellular domain is sufficient for this function as long as it is clustered (4). The second function of ephrins has been described as "reverse signaling", whereby the cytoplasmic domain becomes tyrosine phosphorylated, allowing interactions with other proteins that may activate signaling pathways in the ligand-expressing cells (5). Various stimuli can induce tyrosine phosphorylation of ephrin B, including binding to EphB receptors, activation of Src kinase, and stimulation by PDGF and FGF (6). Tyr324 and Tyr327 have been identified as major phosphorylation sites of ephrin B1 (7). It has been demonstrated that ligand-independent promotion of cell migration by EphA2 overexpression requires phosphorylation of EphA2 at Ser897 by Akt. On the other hand, stimulation of EphA2 by its ligand Ephrin-A1 negates Akt activation by growth factors and causes EphA2 dephosphorylation at Ser897 (8). Alternate Names ARCC2; CTPA; CTPP1; CTRCT6; ECK; EPH receptor A2; EPHA2; ephrin receptor EphA2; Ephrin type-A receptor 2; Epithelial cell kinase; epithelial cell receptor protein tyrosine kinase; protein tyrosine kinase; soluble EPHA2 variant 1; Tyrosine-protein kinase receptor ECK Specification REACTIVITY: H M SENSITIVITY: Endogenous MW (kDa): 125 Source/Isotype: Rabbit IgG