• Product name
    Anti-IRS4 antibody [EP907Y]
    See all IRS4 primary antibodies
  • Description
    Rabbit monoclonal [EP907Y] to IRS4
  • Host species
  • Tested applications
    Suitable for: IHC-P, WB, IP, Flow Cytmore details
  • Species reactivity
    Reacts with: Human
  • Immunogen

    Synthetic peptide within Human IRS4 aa 1200-1300 (C terminal). The exact sequence is proprietary.

  • Positive control
    • Hek293 cell lysate and Human kidney tissue.
  • General notes

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

    Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMab® patents


Associated products


Our Abpromise guarantee covers the use of ab52622 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
IHC-P Use at an assay dependent concentration.
WB 1/5000. Detects a band of approximately 133 kDa (predicted molecular weight: 133 kDa).
IP 1/20.
Flow Cyt 1/20 - 1/100.

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



  • Relevance
    IRS4 (Insulin receptor substrate 4) is a cytoplasmic protein that contains many potential tyrosine and serine/threonine phosphorylation sites. Tyrosine-phosphorylated IRS4 protein has been shown to associate with cytoplasmic signaling molecules that contain SH2 domains. The IRS4 protein is phosphorylated by the insulin receptor tyrosine kinase upon receptor stimulation.
  • Cellular localization
    Cell membrane; Peripheral membrane protein; Cytoplasmic side.
  • Database links
  • Alternative names
    • 160 kDa phosphotyrosine protein antibody
    • Insulin receptor substrate 4 antibody
    • IRS 4 antibody
    • PY160 antibody


  • Anti-IRS4 antibody [EP907Y] (ab52622) at 1/5000 dilution + Hek293 cell lysate at 10 µg

    goat anti-rabbit HRP at 1/2000 dilution

    Predicted band size: 133 kDa
    Observed band size: 133 kDa

  • ab52622, at a 1/50 dilution staining Human IRS4 in kidney using Immunohistochemistry, Paraffin embedded tissue.
  • Overlay histogram showing HEK293 cells stained with ab52622 (red line). The cells were fixed with 4% paraformaldehyde (10 min) and then permeabilized with 0.1% PBS-Tween for 20 min. The cells were then incubated in 1x PBS / 10% normal goat serum / 0.3M glycine to block non-specific protein-protein interactions followed by the antibody (ab52622, 1/50 dilution) for 30 min at 22ºC. The secondary antibody used was DyLight® 488 goat anti-rabbit IgG (H+L) (ab96899) at 1/500 dilution for 30 min at 22ºC. Isotype control antibody (black line) was rabbit IgG (monoclonal) (1µg/1x106 cells) used under the same conditions. Acquisition of >5,000 events was performed. This antibody gave a positive signal in HEK293 cells fixed with 80% methanol (5 min)/permeabilized with 0.1% PBS-Tween for 20 min used under the same conditions.


This product has been referenced in:
  • Homma Y  et al. Insulin receptor substrate-4 binds to Slingshot-1 phosphatase and promotes cofilin dephosphorylation. J Biol Chem 289:26302-13 (2014). Read more (PubMed: 25100728) »
  • Chai B  et al. A novel transcript is up-regulated by fasting in the hypothalamus and enhances insulin signaling. J Neuroendocrinol : (2012). Read more (PubMed: 22935015) »

See all 4 Publications for this product

Customer reviews and Q&As

There are currently no Customer reviews or Questions for ab52622.
Please use the links above to contact us or submit feedback about this product.


Sign up