Render Target: SSR
Render Timestamp:
8/7/2026, 1:17:28 AM EDT
8/7/2026, 5:17:28 AM UTC
Commit: 3db104998069fa48dac58d977e8a564a86cbab5b
XML generation date: 2026-08-05 01:59:54.358
Product last modified at: 2026-08-05T08:00:16.312Z
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PDP - Template Name: Polyclonal Antibody
PDP - Template ID: *******59c6464

Phospho-Threonine/Tyrosine Antibody (BSA and Azide Free) #47534

Filter:
  • WB

    Product Specifications

    REACTIVITY All
    SENSITIVITY Endogenous
    MW (kDa)
    SOURCE Rabbit
    Application Key:
    • WB-Western Blotting 
    Species Cross-Reactivity Key:
    • All-All Species Expected 

    Product Information

    Product Usage Information

    This product is the carrier free version of product #9381. All data were generated using the same antibody clone in the standard formulation which contains BSA and glycerol.

    This formulation is ideal for use with technologies requiring specialized or custom antibody labeling, including fluorophores, metals, lanthanides, and oligonucleotides. It is not recommended for ChIP, ChIP-seq, CUT&RUN or CUT&Tag assays. If you require a carrier free formulation for chromatin profiling, please contact us. Optimal dilutions/concentrations should be determined by the end user.

    BSA and Azide Free antibodies are quality control tested by size exclusion chromatography (SEC) to determine antibody integrity.

    Formulation

    Supplied in 1X PBS (10 mM Na2HPO4, 3 mM KCl, 2 mM KH2PO4, and 140 mM NaCl (pH 7.8)). BSA and Azide Free.

    For standard formulation of this product see product #9381

    Storage

    Store at -20°C. This product will freeze at -20°C so it is recommended to aliquot into single-use vials to avoid multiple freeze/thaw cycles. A slight precipitate may be present and can be dissolved by gently vortexing. This will not interfere with antibody performance.

    Specificity / Sensitivity

    Phospho-Threonine/Tyrosine Antibody (BSA and Azide Free) detects proteins and peptides phosphorylated at threonine and tyrosine residues in a manner largely independent of the surrounding amino acid sequence. This antibody is phospho-specific and may cross-react slightly with some phospho-serine-containing sequences. By ELISA, it recognizes a wide variety of threonine-phosphorylated and tyrosine-phosphorylated peptides. CST recommends the use of Phospho-Threonine/Tyrosine Antibody (BSA and Azide Free) #47534 to detect proteins containing threonine followed by proline.

    Species Reactivity:

    All Species Expected

    Source / Purification

    Polyclonal antibodies are produced by immunizing animals with synthetic phospho-Thr-containing peptides. Antibodies are purified by protein A affinity chromatography.

    Background

    Much of the dynamic behavior of cellular proteins, including the regulation of molecular interactions (1), subcellular localization (2), and transcriptional regulation (3) is controlled by a variety of post-translational modifications (4). Antibodies specific for these post-translational modifications are invaluable tools in the quest to understand normal and pathogenic molecular and cellular behavior.
    General protein modification antibodies are designed to react with modified amino acid residues (e.g. phospho-threonine, phospho-tyrosine, acetyl-lysine, nitro-tyrosine) independently of the sequence in which they are embedded. This ability to recognize modified residues in a "context-independent" fashion gives these antibodies broad reactivities, presumably conferring upon them the ability to react with hundreds of distinct proteins. This broad pattern of reactivity makes these antibodies especially valuable in multiplex analyses and target discovery programs.
    Protein kinases are among the most abundant eukaryotic regulatory proteins; over 500 separate kinase genes are encoded in mammalian genomes (5,6). In spite of the importance of kinases in eukaryotic biology, relatively few of their physiological targets are known. Phospho-Threonine Antibody (P-Thr-Polyclonal) #9381 and Phospho-Threonine (42H4) mAb #9386 provide powerful tools for discovering targets of serine/threonine kinases, for monitoring and characterizing in vitro threonine phosphorylation reactions as well as for high throughput Ser/Thr kinase drug discovery.
    For Research Use Only. Not for Use in Diagnostic Procedures.
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