• Product nameAnti-KSR1 antibody [EPR2421Y]
    See all KSR1 primary antibodies
  • Description
    Rabbit monoclonal [EPR2421Y] to KSR1
  • Tested applicationsSuitable for: WB, IHC-P, ICCmore details
    Unsuitable for: Flow Cyt or IP
  • Species reactivity
    Reacts with: Mouse, Human
  • Immunogen

    A synthetic peptide corresponding to residues near the C-terminus of human KSR.

  • Positive control
    • 293 cell lysate.
  • 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.

    Rat: We have preliminary internal testing data to indicate this antibody may not react with these species. Please contact us for more information.



Our Abpromise guarantee covers the use of ab68483 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 1/500 - 1/2000. Detects a band of approximately 120 kDa (predicted molecular weight: 102 kDa).
IHC-P 1/100 - 1/250. Perform heat mediated antigen retrieval before commencing with IHC staining protocol.
ICC 1/50.
  • Application notesIs unsuitable for Flow Cyt or IP.
  • Target

    • FunctionLocation-regulated scaffolding protein connecting MEK to RAF. Promotes MEK and RAF phosphorylation and activity through assembly of an activated signaling complex. By itself, it has no demonstrated kinase activity.
    • Sequence similaritiesBelongs to the protein kinase superfamily. TKL Ser/Thr protein kinase family.
      Contains 1 phorbol-ester/DAG-type zinc finger.
      Contains 1 protein kinase domain.
    • Post-translational
      Phosphorylated on Ser-309 and, to a higher extent, on Ser-404 by MARK3. Dephosphorylated on Ser-404 by PPP2CA. In resting cells, phosphorylated KSR1 is cytoplasmic and in stimulated cells, dephosphorylated KSR1 is membrane-associated.
    • Cellular localizationCytoplasm. Membrane. In unstimulated cells, where the phosphorylated form is bound to a 14-3-3 protein, sequestration in the cytoplasm occurs. Following growth factor treatment, the protein is free for membrane translocation, and it moves from the cytoplasm to the cell periphery.
    • Information by UniProt
    • Database links
    • Alternative names
      • BKSR 1 antibody
      • BKSR1 antibody
      • dKsr antibody
      • EK 31 antibody
      • EK31 antibody
      • hb antibody
      • Kinase suppressor of Ras 1 antibody
      • Kinase suppressor of ras antibody
      • KSR 1 antibody
      • KSR antibody
      • KSR1 antibody
      • KSR1_HUMAN antibody
      • Positive Ras signaling mediator family member (86.4 kD) antibody
      • Positive Ras signaling mediator family member antibody
      • RSU 2 antibody
      • RSU2 antibody
      • SR 31 antibody
      • SR31 antibody
      • Suppressor of activated let 60 Ras SUR3 antibody
      • Suppressor of Ras1 31 antibody
      see all

    Anti-KSR1 antibody [EPR2421Y] images

    • Predicted band size : 102 kDa

      Lane 1: Wild-type HAP1 cell lysate (40 µg)
      Lane 2: KSR1 knockout HAP1 cell lysate (40 µg)
      Lane 3: HeLa cell lysate (20 µg)
      Lane 4: HEK293 cell lysate (20 µg)
      Lanes 1 - 4: Merged signal (red and green). Green - ab68483 observed at 120 kDa. Red - loading control, ab8245, observed at 37 kDa.

      ab68483 was shown to recognize KSR1  when KSR1  knockout samples were used, along with additional cross-reactive bands. Wild-type and KSR1  knockout samples were subjected to SDS-PAGE. Ab68483 and ab8245 (loading control to GAPDH) were diluted at 1/1000 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.

    • Anti-KSR1 antibody [EPR2421Y] (ab68483) at 1/2000 dilution + 293 cell lysate at 10 µg

      goat anti rabbit HRP at 1/2000 dilution

      Predicted band size : 102 kDa
      Observed band size : 120 kDa (why is the actual band size different from the predicted?)

    References for Anti-KSR1 antibody [EPR2421Y] (ab68483)

    ab68483 has not yet been referenced specifically in any publications.

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