Render Target: STATIC
Render Timestamp: 2024-10-11T09:57:30.748Z
Commit: 56767fe525c928647c8401233a175d0d607d385d
XML generation date: 2024-08-01 15:26:33.362
Product last modified at: 2024-10-01T17:00:08.589Z
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PDP - Template Name: Polyclonal Antibody
PDP - Template ID: *******59c6464

Phospho-Zap-70 (Tyr493)/Syk (Tyr526) Antibody #2704

Filter:
  • WB
  • IP

    Supporting Data

    REACTIVITY H
    SENSITIVITY Endogenous
    MW (kDa) 70
    SOURCE Rabbit
    Application Key:
    • WB-Western Blotting 
    • IP-Immunoprecipitation 
    Species Cross-Reactivity Key:
    • H-Human 

    Product Information

    Product Usage Information

    Application Dilution
    Western Blotting 1:1000
    Immunoprecipitation 1:50

    Storage

    Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA and 50% glycerol. Store at –20°C. Do not aliquot the antibody.

    Protocol

    Specificity / Sensitivity

    Phospho-Zap-70 (Tyr493)/Syk (Tyr526) Antibody detects endogenous levels of Zap-70 only when phosphorylated at Tyr493. This antibody may cross-react with other activated tyrosine kinases.

    Species Reactivity:

    Human

    The antigen sequence used to produce this antibody shares 100% sequence homology with the species listed here, but reactivity has not been tested or confirmed to work by CST. Use of this product with these species is not covered under our Product Performance Guarantee.

    Species predicted to react based on 100% sequence homology:

    Mouse, Rat

    Source / Purification

    Polyclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Tyr493 of human Zap-70. Antibodies are purified by protein A and peptide affinity chromatography.

    Background

    The Syk family protein tyrosine kinase Zap-70 is expressed in T and NK cells and plays a critical role in mediating T cell activation in response to T cell receptor (TCR) engagement (1). Following TCR engagement, Zap-70 is rapidly phosphorylated on several tyrosine residues through autophosphorylation and transphosphorylation by the Src family tyrosine kinase Lck (2-6). Tyrosine phosphorylation correlates with increased Zap-70 kinase activity and downstream signaling events. Expression of Zap-70 is correlated with disease progression and survival in patients with chronic lymphocytic leukemia (7,8).
    Phosphorylation of Tyr493 within the activation loop results in enzymatic activation of Zap-70 (9).
    For Research Use Only. Not For Use In Diagnostic Procedures.
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