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Phospho-RSK2 (Ser227) (D53A11) Rabbit Monoclonal Antibody #3556

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  • WB

    Product Specifications

    REACTIVITY H M R Mk
    SENSITIVITY Endogenous
    MW (kDa) 90
    Source/Isotype Rabbit IgG
    Application Key:
    • WB-Western Blotting 
    Species Cross-Reactivity Key:
    • H-Human 
    • M-Mouse 
    • R-Rat 
    • Mk-Monkey 

    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, 50% glycerol and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.

    Protocol

    Specificity / Sensitivity

    Phospho-RSK2 (Ser227) (D53A11) Rabbit Monoclonal Antibody detects endogenous levels of RSK2 only when phosphorylated at Ser227. This antibody shows cross-reactivity with RSK1 when phosphorylated at the homologous serine residues.

    Species Reactivity:

    Human, Mouse, Rat, Monkey

    Source / Purification

    Monoclonal antibody is produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Ser227 of human RSK2.

    Background

    The 90 kDa ribosomal S6 kinases (RSK1-4) are a family of widely expressed Ser/Thr kinases characterized by two nonidentical, functional kinase domains (1) and a carboxy-terminal docking site for extracellular signal-regulated kinases (ERKs) (2). Several sites both within and outside of the RSK kinase domain, including Ser380, Thr359, Ser363, and Thr573, are important for kinase activation (3). RSK1-3 are activated via coordinated phosphorylation by MAPKs, autophosphorylation, and phosphoinositide-3-OH kinase (PI3K) in response to many growth factors, polypeptide hormones, and neurotransmitters (3).

    PDK1 phosphorylates Ser227 in the activation loop of the amino-terminal kinase domain of RSK2, leading to substantial activation of the kinase in vitro and in vivo. The constitutively active PDK1 cooperates with ERK in the activation of RSK following the exposure of cells to growth factors or UV-light (4, 5).

    Alternate Names

    90 kDa ribosomal protein S6 kinase 1; 90 kDa ribosomal protein S6 kinase 3; CLS; dJ590P13.1 (ribosomal protein S6 kinase, 90kD, polypeptide 1); epididymis secretory sperm binding protein; HU-1; HU-3; Insulin-stimulated protein kinase 1; ISPK-1; ISPK1; KS6A1; KS6A3; MAP kinase-activated protein kinase 1a; MAP kinase-activated protein kinase 1b; MAPK-activated protein kinase 1a; MAPK-activated protein kinase 1b; MAPKAP kinase 1a; MAPKAP kinase 1b; MAPKAPK-1a; MAPKAPK-1b; MAPKAPK1; MAPKAPK1A; MAPKAPK1B; mental retardation, X-linked 19; MRX19; p90-RSK 1; p90-RSK 3; p90-RSK2; p90RSK; p90RSK1; p90RSK3; p90S6K; pp90RSK2; ribosomal protein S6 kinase A1; ribosomal protein S6 kinase A3; ribosomal protein S6 kinase alpha 1; Ribosomal protein S6 kinase alpha-1; Ribosomal protein S6 kinase alpha-3; ribosomal protein S6 kinase, 90kDa, polypeptide 1; ribosomal protein S6 kinase, 90kDa, polypeptide 3; Ribosomal S6 kinase 1; Ribosomal S6 kinase 2; RPS6KA1; RPS6KA3; RSK; RSK-1; RSK-2; RSK1; RSK2; S6K-alpha 1; S6K-alpha-1; S6K-alpha-3; S6K-alpha3

    For Research Use Only. Not for Use in Diagnostic Procedures.
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