Phospho-VEGF Receptor 2 Antibody Sampler Kit #12599
Product Information
Kit Usage Information
Protocols
Product Description
Specificity / Sensitivity
The phospho-VEGF Receptor 2 (Tyr1175) (D5B11) Rabbit mAb detects endogenous VEGF Receptor 2 at tyrosine 1175 and may cross-react with other tyrosine-phosphorylated receptor tyrosine kinases, including VEGFR1 and FLT3. The phospho-VEGF Receptor 2 (Tyr1059) (D5A6) Rabbit mAb
detects endogenous levels of VEGF Receptor 2 at tyrosine 1059 and can detect VEGF receptors 1 and 3 when phosphorylated at corresponding tyrosine residues due to identical sequences within the epitope region. The phospho-VEGF Receptor 2 (Tyr951) (15D2) Rabbit mAb detects endogenous VEGF Receptor 2 at tyrosine 951 and may slightly cross-react with activated VEGF receptor 1, but not with other related tyrosine phosphorylated tyrosine kinases. The phospho-VEGF Receptor 2 (Tyr996) Antibody detects transfected VEGF Receptor 2 only when phosphorylated at tyrosine 996. The antibody cross-reacts with tyrosine-phosphorylated PDGF receptor. The VEGF Receptor 2 (D5B1) Rabbit mAb detects endogenous total VEGF Receptor 2.
Source / Purification
Polyclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Tyr996 of human VEGFR2. Polyclonal antibodies are purified by protein A and peptide affinity chromatography. Monoclonal antibodies are produced by immunizing animals with synthetic phosphopeptides corresponding to residues surrounding Tyr951, Tyr1059 or Tyr1175. VEGFR2 monoclonal antibody is produced by immunizing animals with a recombinant protein containing the carboxy-terminal 150 residues of human VEGFR2.
Background
Vascular endothelial growth factor receptor 2 (VEGFR2, KDR, Flk-1) is a major receptor for VEGF-induced signaling in endothelial cells. Upon ligand binding, VEGFR2 undergoes autophosphorylation and becomes activated (1). Major autophosphorylation sites of VEGFR2 are located in the kinase insert domain (Tyr951/996) and in the tyrosine kinase catalytic domain (Tyr1054/1059) (2). Activation of the receptor leads to rapid recruitment of adaptor proteins, including Shc, GRB2, PI3 kinase, NCK, and the protein tyrosine phosphatases SHP-1 and SHP-2 (3). Phosphorylation at Tyr1212 provides a docking site for GRB2 binding and phospho-Tyr1175 binds the p85 subunit of PI3 kinase and PLCγ, as well as Shb (1,4,5). Signaling from VEGFR2 is necessary for the execution of VEGF-stimulated proliferation, chemotaxis and sprouting, as well as survival of cultured endothelial cells in vitro and angiogenesis in vivo (6-8).
- Meyer, M. et al. (1999) EMBO J 18, 363-74.
- Dougher-Vermazen, M. et al. (1994) Biochem Biophys Res Commun 205, 728-38.
- Kroll, J. and Waltenberger, J. (1997) J Biol Chem 272, 32521-7.
- Takahashi, T. et al. (2001) EMBO J 20, 2768-78.
- Holmqvist, K. et al. (2004) J Biol Chem 279, 22267-75.
- Karkkainen, M.J. and Petrova, T.V. (2000) Oncogene 19, 5598-605.
- Rahimi, N. et al. (2000) J Biol Chem 275, 16986-92.
- Claesson-Welsh, L. (2003) Biochem Soc Trans 31, 20-4.
Limited Uses
Except as otherwise expressly agreed in a writing signed by a legally authorized representative of CST, the following terms apply to Products provided by CST, its affiliates or its distributors. Any Customer's terms and conditions that are in addition to, or different from, those contained herein, unless separately accepted in writing by a legally authorized representative of CST, are rejected and are of no force or effect.
Products are labeled with For Research Use Only or a similar labeling statement and have not been approved, cleared, or licensed by the FDA or other regulatory foreign or domestic entity, for any purpose. Customer shall not use any Product for any diagnostic or therapeutic purpose, or otherwise in any manner that conflicts with its labeling statement. Products sold or licensed by CST are provided for Customer as the end-user and solely for research and development uses. Any use of Product for diagnostic, prophylactic or therapeutic purposes, or any purchase of Product for resale (alone or as a component) or other commercial purpose, requires a separate license from CST. Customer shall (a) not sell, license, loan, donate or otherwise transfer or make available any Product to any third party, whether alone or in combination with other materials, or use the Products to manufacture any commercial products, (b) not copy, modify, reverse engineer, decompile, disassemble or otherwise attempt to discover the underlying structure or technology of the Products, or use the Products for the purpose of developing any products or services that would compete with CST products or services, (c) not alter or remove from the Products any trademarks, trade names, logos, patent or copyright notices or markings, (d) use the Products solely in accordance with CST Product Terms of Sale and any applicable documentation, and (e) comply with any license, terms of service or similar agreement with respect to any third party products or services used by Customer in connection with the Products.