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PDP - Template Name: PTMScan (with Pricing)
PDP - Template ID: *******57cbce3

PTMScan® Phospho-Thr-X-Arg Motif [pT(P/X)R] Kit #91336

Additional Information

This product is intended for peptide enrichment and mass spectrometry analysis. To learn more about our Proteomics Kits and Services please answer a few questions for our Proteomics group.

Contact the CST Proteomics Group

    Product Information

    Product Usage Information

    Cells are lysed in a urea-containing buffer, cellular proteins are digested by proteases, and the resulting peptides are purified by reversed-phase solid-phase extraction. Peptides are then subjected to immunoaffinity purification using a PTMScan® Motif Antibody conjugated to protein A agarose beads. Unbound peptides are removed through washing, and the captured PTM-containing peptides are eluted with dilute acid. Reversed-phase purification is performed on microtips to desalt and separate peptides from antibody prior to concentrating the enriched peptides for LC-MS/MS analysis. CST recommends the use of PTMScan® IAP Buffer #9993 included in the kit.

    Storage

    Antibody beads supplied in IAP buffer containing 50% glycerol. Store at -20°C. Do not aliquot the antibody.

    Protocol

    Product Description

    PTMScan® Technology employs a proprietary methodology from Cell Signaling Technology (CST) for peptide enrichment by immunoprecipitation using a specific bead-conjugated antibody in conjunction with liquid chromatography (LC) tandem mass spectrometry (MS/MS) for quantitative profiling of post-translational modification (PTM) sites in cellular proteins. These include phosphorylation (PhosphoScan®), ubiquitination (UbiScan®), acetylation (AcetylScan®), and methylation (MethylScan®), among others. PTMScan® Technology enables researchers to isolate, identify, and quantitate large numbers of post-translationally modified cellular peptides with a high degree of specificity and sensitivity, providing a global overview of PTMs in cell and tissue samples without preconceived biases about where these modified sites occur. For more information on PTMScan® Proteomics Services, please visit www.cellsignal.com/common/content.jsp?id=ptmscan-services.

    Background

    The MAPK and CDK families of serine/threonine protein kinases play important roles in proliferation and cell cycle control. These kinases phosphorylate threonine or serine residues that are followed by a proline residue (1-3). MAPK phosphorylates substrates with the consensus sequence PX(S/T)P and CDKs phosphorylate substrates containing the consensus sequence (S/T)PXR/K (4,5). Some signaling molecules can be regulated by phosphorylation at a specific threonine followed by an arginine or lysine at the +2 position. For example, conventional PKC isozymes phosphorylate substrates containing a serine or threonine with Arg or Lys at the -3, -2 and +2 positions (6,7). Cell Signaling Technology has developed antibodies that bind to phosphorylation sites containing the T(P/X)R motif for discovery and proteome-wide profiling of kinase substrates.
    For Research Use Only. Not For Use In Diagnostic Procedures.
    Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
    AcetylScan is a registered trademark of Cell Signaling Technology, Inc.
    MethylScan is a registered trademark of Cell Signaling Technology, Inc.
    PhosphoScan is a registered trademark of Cell Signaling Technology, Inc.
    UbiScan is a registered trademark of Cell Signaling Technology, Inc.
    All other trademarks are the property of their respective owners. Visit our Trademark Information page.