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  1. Products /
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  3. PathScan® Phospho-PDGF Receptor α/β (panTyr) Sandwich ELISA Kit

PathScan® Phospho-PDGF Receptor α/β (panTyr) Sandwich ELISA Kit #7235

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  • ELISA

    Supporting Data

    REACTIVITY H M
    Application Key:
    • ELISA-ELISA 
    Species Cross-Reactivity Key:
    • H-Human 
    • M-Mouse 

    Product Information

    Product Description

    The PathScan® Phospho-PDGF Receptor α/β (panTyr) Sandwich ELISA Kit is a solid phase sandwich enzyme-linked immunosorbent assay (ELISA) that detects endogenous levels of PDGF receptor α/β when tyrosine phosphorylated. A PDGF Receptor α/β Rabbit Antibody has been coated onto the microwells. After incubation with cell lysates, PDGF Receptor α/β (phospho and nonphospho) is captured by the coated antibody. Following extensive washing, a Biotinylated Phospho-Tyrosine Mouse Detection Antibody is added to detect tyrosine phosphorylation of the captured PDGF receptor α/β protein. HRP-linked Strepavidin is then used to recognize the bound detection antibody. HRP substrate, TMB, is added to develop color. The magnitude of the absorbance for this developed color is proportional to the quantity of PDGF receptor α/β phosphorylated on tyrosine.

    *Antibodies in kit are custom formulations specific to kit.

    Protocol

    Specificity / Sensitivity

    CST's PathScan® Phospho-PDGF Receptor α/β (panTyr) Sandwich ELISA Kit #7235 detects PDGF receptor α/β when tyrosine phosphorylated. As shown in Figure 1, a significant induction of PDGF Receptor α/β tyrosine phosphorylation can be detected in MG63 cells following treatment with PDGF using the Phospho-PDGF Receptor α/β (panTyr) Sandwich ELISA Kit #7235. The level of total PDGF receptor α (phospho and nonphospho) remains unchanged as shown by Western analysis and by PathScan® Total PDGF Receptor α Sandwich ELISA Kit #7318. Western blot analysis of protein captured in the PDGF receptor α/β antibody coated microwell indicates that PDGF receptor α/β (phospho and nonphospho) has been captured (data not shown). The Western blot also shows a major band corresponding to the phospho-PDGF receptor α/β protein when biotinylated anti-tyrosine antibody is used as probe (see Figure 3). This kit detects proteins from the indicated species, as determined through in-house testing, but may also detect homologous proteins from other species.

    Species Reactivity:

    Human, Mouse

    Background

    Platelet derived growth factor (PDGF) family proteins exist as several disulphide-bonded, dimeric isoforms (PDGF AA, PDGF AB, PDGF BB, PDGF CC, and PDGF DD) that bind in a specific pattern to two closely related receptor tyrosine kinases, PDGF receptor α (PDGFRα) and PDGF receptor β (PDGFRβ). PDGFRα and PDGFRβ share 75% to 85% sequence homology between their two intracellular kinase domains, while the kinase insert and carboxy-terminal tail regions display a lower level (27% to 28%) of homology (1). PDGFRα homodimers bind all PDGF isoforms except those containing PDGF D. PDGFRβ homodimers bind PDGF BB and DD isoforms, as well as the PDGF AB heterodimer. The heteromeric PDGF receptor α/β binds PDGF B, C, and D homodimers, as well as the PDGF AB heterodimer (2). PDGFRα and PDGFRβ can each form heterodimers with EGFR, which is also activated by PDGF (3). Various cells differ in the total number of receptors present and in the receptor subunit composition, which may account for responsive differences among cell types to PDGF binding (4). Ligand binding induces receptor dimerization and autophosphorylation, followed by binding and activation of cytoplasmic SH2 domain-containing signal transduction molecules, such as GRB2, Src, GAP, PI3 kinase, PLCγ, and NCK. A number of different signaling pathways are initiated by activated PDGF receptors and lead to control of cell growth, actin reorganization, migration, and differentiation (5). Tyr751 in the kinase-insert region of PDGFRβ is the docking site for PI3 kinase (6). Phosphorylated pentapeptides derived from Tyr751 of PDGFRβ (pTyr751-Val-Pro-Met-Leu) inhibit the association of the carboxy-terminal SH2 domain of the p85 subunit of PI3 kinase with PDGFRβ (7). Tyr740 is also required for PDGFRβ-mediated PI3 kinase activation (8).

    Database Links

    UniProt ID: P16234 , P09619


    Entrez-Gene Id: 5156 , 5159


    Limited Uses

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    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.

    For Research Use Only. Not For Use In Diagnostic Procedures.
    Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
    PathScan is a registered trademark of Cell Signaling Technology, Inc.
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