Render Target: STATIC
Render Timestamp: 2025-03-13T10:00:19.571Z
Commit: a619ae74f66dae0f27639e88da12bcf600e46428
XML generation date: 2025-03-07 13:08:57.569
Product last modified at: 2024-05-30T07:05:05.994Z
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PDP - Template Name: Polyclonal Antibody
PDP - Template ID: *******59c6464

CrkII Antibody #3492

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  • WB

Inquiry Info. # 3492

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    Supporting Data

    REACTIVITY H M
    SENSITIVITY Endogenous
    MW (kDa) 42
    SOURCE Rabbit
    Application Key:
    • WB-Western Blotting 
    Species Cross-Reactivity Key:
    • H-Human 
    • M-Mouse 

    Product Information

    Product Usage Information

    Application Dilution
    Western Blotting 1:1000

    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

    CrkII Antibody detects endogenous levels of CrkII protein. This antibody does not cross-react with related proteins.

    Species Reactivity:

    Human, Mouse

    Source / Purification

    Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Trp169 of human CrkII protein. Antibodies are purified by protein A and peptide affinity chromatography.

    Background

    CrkII, a cellular homologue of v-Crk, belongs to a family of adaptor proteins with an SH2-SH3-SH3 domain structure that transmits signals from tyrosine kinases (1). The primary function of Crk is to recruit cytoplasmic proteins in the vicinity of tyrosine kinases through SH2-phospho-tyrosine interaction. Thus, the output from Crk depends on the SH3-binding proteins, which include the C3G and Sos guanine nucleotide exchange proteins, Abl tyrosine kinase, DOCK180 and some STE20-related kinases. The variety of Crk-binding proteins indicates the pleiotropic function of Crk (2). The two CrkII SH3 domains are separated by a 54 amino acid linker region, which is highly conserved in Xenopus, chicken and mammalian CrkII proteins (3). Tyrosine 221 in this region is phosphorylated by the Abl tyrosine kinase (4), IGF-I receptor (5) and EGF receptor (6). Once Tyr221 is phosphorylated, CrkII undergoes a change in intramolecular folding and SH2-pTyr interaction, which causes rapid dissociation of CrkII from the tyrosine kinase complex (3).
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