CST, 14960S, EphB4 (D1C7N) Rabbit Monoclonal Antibody

Monoclonal Antibody for studying EphB4. Validated for WB,IP,IHC,IF. Available in 2 sizes. Highly specific and rigorously validated in-house, EphB4 (D1C7N) Rabbit Monoclonal Antibody (CST #14960) is ready to ship. Product Usage Information Western Blotting: 1:1000 Immunoprecipitation: 1:50 Immunohistochemistry (Paraffin): 1:500 Immunofluorescence (Immunocytochemistry): 1:800 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 # 78650 . Protocol Available protocols: Western Blotting, Immunoprecipitation, Immunohistochemistry (Paraffin), Immunofluorescence (Immunocytochemistry) Specificity / Sensitivity EphB4 (D1C7N) Rabbit Monoclonal Antibody recognizes endogenous levels of total EphB4 protein. Species Reactivity: Human Source / Purification Monoclonal antibody is produced by immunizing animals with recombinant protein specific to the amino terminus of human EphB4 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). The ephrin receptor B4 (EphB4) is normally expressed on venous endothelial cells, while arterial endothelial cells express its ligand, EphrinB2. Together, EphB4 and EphrinB2 play an important roll in vasculature development and maintenance (8). Research studies show that various cancers, including breast, colorectal, esophageal, and pancreatic cancers, express EphB4 (9-12). However, as EphB4 has been shown to have both tumor suppressive and promoting properties, its role in tumorigenesis and tumor progression remains uncertain (13). Alternate Names CMAVM2; EPH receptor B4; EPHB4; ephrin receptor EphB4; Ephrin type-B receptor 4; hepatoma transmembrane kinase; HFASD; HTK; LMPHM7; MYK1; soluble EPHB4 variant 1; soluble EPHB4 variant 2; soluble EPHB4 variant 3; TYRO11; Tyrosine-protein kinase receptor HTK; Tyrosine-protein kinase TYRO11 Specification REACTIVITY: H SENSITIVITY: Endogenous MW (kDa): 135 Source/Isotype: Rabbit IgG