Render Target: STATIC
Render Timestamp: 2025-03-19T11:15:20.305Z
Commit: 779953b12a5930618aae6aca7c87fb286faeb1d7
XML generation date: 2025-03-07 13:08:10.099
Product last modified at: 2025-02-18T14:15:29.121Z
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PDP - Template Name: Polyclonal Antibody
PDP - Template ID: *******59c6464

Phospho-p57 Kip2 (Thr310) Antibody #2558

Filter:
  • WB
  • IF

    Supporting Data

    REACTIVITY H
    SENSITIVITY Endogenous
    MW (kDa) 57
    SOURCE Rabbit
    Application Key:
    • WB-Western Blotting 
    • IF-Immunofluorescence 
    Species Cross-Reactivity Key:
    • H-Human 

    Product Information

    Product Usage Information

    Application Dilution
    Western Blotting 1:1000
    Immunofluorescence (Immunocytochemistry) 1:100

    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-p57 Kip2 (Thr310) Antibody detects endogenous levels of p57 Kip2 only when phosphorylated at threonine 310. This antibody may cross-react with p27 Kip1 when phosphorylated at Thr187.

    Species Reactivity:

    Human

    Source / Purification

    Polyclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Thr310 of human p57 Kip2. Antibodies are purified by protein A and peptide affinity chromatography.

    Background

    p27 Kip1 is a member of the Cip/Kip family of cyclin-dependent kinase inhibitors. Like its relatives, p57 Kip2 and p21 Waf1/Cip1, the ability to enforce the G1 restriction point is derived from its inhibitory binding to CDK2/cyclin E and other CDK/cyclin complexes. Expression levels of p27 are upregulated in quiescent cells and in cells treated with cAMP or other negative cell cycle regulators. Downregulation of p27 can be induced by treatment with interleukin-2 or other mitogens; this involves phosphorylation of p27 and its degradation by the ubiquitin-proteasome pathway (1-4).
    Levels of p57 Kip2 are controlled by ubiquitination/degradation via the Skp1/Cul1/F-box-type E3 ubiquitin ligase complex SCF-Skp2, and this effect is dependent on Thr310 (5). A similar threonine phosphorylation site in p27 Kip1, Thr187, has also been shown to regulate protein stability (6).
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