• Product nameAnti-Rsk 2 / MAPKAP Kinase 1b antibody [Y83]
    See all Rsk 2 / MAPKAP Kinase 1b primary antibodies
  • Description
    Rabbit monoclonal [Y83] to Rsk 2 / MAPKAP Kinase 1b
  • SpecificityThe antibody recognises Rsk2. It does not cross react with other S6 kinase family members.
  • Tested applicationsSuitable for: WB, IHC-P, Flow Cyt, IP, ChIPmore details
    Unsuitable for: ICC
  • Species reactivity
    Reacts with: Mouse, Rat, Human
  • Immunogen

    A synthetic peptide corresponding to residues near N-terminus of human RSK2

  • Positive control
    • Hela cell lysate and human lymphoma
  • General notes

    This product is a recombinant rabbit monoclonal antibody.


    Produced using Abcam’s RabMAb® technology. RabMAb® technology is covered by the following U.S. Patents, No. 5,675,063 and/or 7,429,487.


  • FormLiquid
  • Storage instructionsShipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.
  • Storage bufferPBS 49%,Sodium azide 0.01%,Glycerol 50%,BSA 0.05%
  • Concentration information loading...
  • PurityIgG fraction
  • ClonalityMonoclonal
  • Clone numberY83
  • IsotypeIgG
  • Research areas

Associated products


Our Abpromise guarantee covers the use of ab32133 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
WB 1/5000. Detects a band of approximately 90 kDa (predicted molecular weight: 84 kDa).
IHC-P Use at an assay dependent concentration.
Flow Cyt 1/50.

ab172730 - Rabbit monoclonal IgG, is suitable for use as an isotype control with this antibody.

IP 1/100.
ChIP Use at an assay dependent concentration. PubMed: 25368387
  • Application notesIs unsuitable for ICC.
  • Target

    • FunctionSerine/threonine kinase that may play a role in mediating the growth-factor and stress induced activation of the transcription factor CREB.
    • Tissue specificityExpressed in many tissues, highest levels in skeletal muscle.
    • Involvement in diseaseDefects in RPS6KA3 are the cause of Coffin-Lowry syndrome (CLS) [MIM:303600]; an X-linked dominant disorder characterized by severe mental retardation with facial and digital dysmorphisms, and progressive skeletal deformations.
    • Sequence similaritiesBelongs to the protein kinase superfamily. AGC Ser/Thr protein kinase family. S6 kinase subfamily.
      Contains 1 AGC-kinase C-terminal domain.
      Contains 2 protein kinase domains.
    • Post-translational
      Autophosphorylated on Ser-386, as part of the activation process.
      Ser-227 phosphorylation promotes Ser-386 phosphorylation and leads to basal activation. Full activation by growth factors requires additional phosphorylation on Ser-369.
    • Information by UniProt
    • Database links
    • Alternative names
      • 90 kDa ribosomal protein S6 kinase 3 antibody
      • CLS antibody
      • HU 3 antibody
      • HU2 antibody
      • HU3 antibody
      • Insulin stimulated protein kinase 1 antibody
      • Insulin-stimulated protein kinase 1 antibody
      • ISPK-1 antibody
      • ISPK1 antibody
      • KS6A3_HUMAN antibody
      • MAP kinase activated protein kinase 1b antibody
      • MAP kinase-activated protein kinase 1b antibody
      • MAPK activated protein kinase 1b antibody
      • MAPK-activated protein kinase 1b antibody
      • MAPKAP kinase 1b antibody
      • MAPKAPK 1b antibody
      • MAPKAPK-1b antibody
      • MAPKAPK1B antibody
      • Mental retardation, X linked 19 antibody
      • MRX19 antibody
      • OTTHUMP00000023036 antibody
      • p90 RSK2 antibody
      • p90 RSK3 antibody
      • p90-RSK 3 antibody
      • p90RSK3 antibody
      • pp90RSK2 antibody
      • Ribosomal protein S6 kinase 90kDa polypeptide 3 antibody
      • Ribosomal protein S6 kinase alpha 3 antibody
      • Ribosomal protein S6 kinase alpha-3 antibody
      • Ribosomal protein s6 kinase ii alpha 2 antibody
      • Ribosomal S6 kinase 2 antibody
      • Rps6ka3 antibody
      • RSK antibody
      • RSK-2 antibody
      • RSK2 antibody
      • S6 kinase 2 antibody
      • S6K alpha3 antibody
      • S6K-alpha-3 antibody
      see all

    Anti-Rsk 2 / MAPKAP Kinase 1b antibody [Y83] images

    • Predicted band size : 84 kDa

      Lane 1: Wild-type HAP1 cell lysate (40 µg)
      Lane 2: Rsk 2 / MAPKAP Kinase 1b knockout HAP1 cell lysate (40 µg)
      Lane 3: HeLa cell lysate (40 µg)
      Lane 4: (40 µg)
      Lanes 1 - 4: Merged signal (red and green). Green - ab32133 observed at 88 kDa. Red - loading control, ab8245, observed at 37 kDa.

      ab32133 was shown to specifically react with Rsk 2 / MAPKAP Kinase 1b when Rsk 2 / MAPKAP Kinase 1b knockout samples were used. Wild-type and Rsk 2 / MAPKAP Kinase 1b knockout samples were subjected to SDS-PAGE. Ab32133 and ab8245 (loading control to GAPDH) were diluted at 1/5000 and 1:10,000 dilution respectively and incubated overnight at 4C. Blots were developed with IRDye® 800CW Goat anti-Rabbit IgG (H + L) and IRDye® 680 Goat anti-Mouse IgG (H + L) secondary antibodies at 1:10,000 dilution for 1 hour at room temperature before imaging.

    • ab32133, staining human lymphoma by immunohistochemistry, Paraffin embedded tissue
    • Anti-Rsk 2 / MAPKAP Kinase 1b antibody [Y83] (ab32133) at 1/5000 dilution + Hela cell lysate

      Predicted band size : 84 kDa
      Observed band size : 90 kDa (why is the actual band size different from the predicted?)

    References for Anti-Rsk 2 / MAPKAP Kinase 1b antibody [Y83] (ab32133)

    This product has been referenced in:
    • Takada I DGCR14 induces Il17a gene expression through the ROR?/BAZ1B/RSKS2 complex. Mol Cell Biol 35:344-55 (2015). WB, ChIP ; Mouse . Read more (PubMed: 25368387) »

    See 1 Publication for this product

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