• Product name

    Anti-IRAK4 antibody [Y279]
    See all IRAK4 primary antibodies
  • Description

    Rabbit monoclonal [Y279] to IRAK4
  • Host species

  • Tested applications

    Suitable for: WB, Flow Cyt, ICC/IFmore details
    Unsuitable for: IHC-P
  • Species reactivity

    Reacts with: Human
  • Immunogen

    Synthetic peptide within Human IRAK4 aa 1-100 (N terminal). The exact sequence is proprietary.

  • Positive control

    • WB: K-562 lysates; ICC/IF: Jurkat cells; FC: Jurkat cells.
  • 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.

    We are constantly working hard to ensure we provide our customers with best in class antibodies. As a result of this work we are pleased to now offer this antibody in purified format. We are in the process of updating our datasheets. The purified format is designated 'PUR' on our product labels. If you have any questions regarding this update, please contact our Scientific Support team.

    This product is a recombinant rabbit monoclonal antibody.



Our Abpromise guarantee covers the use of ab32511 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 1/1000 - 1/10000. Detects a band of approximately 52 kDa.
Flow Cyt Use at an assay dependent concentration.
ICC/IF 1/500.

For unpurified use at 1/50 to 1/100.

  • Application notes
    Is unsuitable for IHC-P.
  • Target

    • Function

      Required for the efficient recruitment of IRAK1 to the IL-1 receptor complex following IL-1 engagement, triggering intracellular signaling cascades leading to transcriptional up-regulation and mRNA stabilization. Phosphorylates IRAK1.
    • Involvement in disease

      Defects in IRAK4 are the cause of recurrent isolated invasive pneumococcal disease type 1 (IPD1) [MIM:610799]. Recurrent invasive pneumococcal disease (IPD) is defined as two episodes of IPD occurring at least 1 month apart, whether caused by the same or different serotypes or strains. Recurrent IPD occurs in at least 2% of patients in most series, making IPD the most important known risk factor for subsequent IPD.
      Defects in IRAK4 are the cause of IRAK4 deficiency (IRAK4D) [MIM:607676]. IRAK4 deficiency causes extracellular pyogenic bacterial and fungal infections in otherwise healthy children.
    • Sequence similarities

      Belongs to the protein kinase superfamily. TKL Ser/Thr protein kinase family. Pelle subfamily.
      Contains 1 death domain.
      Contains 1 protein kinase domain.
    • Information by UniProt
    • Database links

    • Alternative names

      • IL-1 receptor-associated kinase 4 antibody
      • Interleukin 1 receptor associated kinase 4 mutant form 1 antibody
      • Interleukin-1 receptor-associated kinase 4 antibody
      • Interleukin1 receptor associated kinase 4 antibody
      • IPD1 antibody
      • IRAK 4 antibody
      • IRAK-4 antibody
      • IRAK4 antibody
      • IRAK4 mutated form 1 antibody
      • IRAK4_HUMAN antibody
      • LOC 51135 antibody
      • NY REN 64 antibody
      • NY REN 64 antigen antibody
      • NY-REN-64 antibody
      • REN64 antibody
      • Renal carcinoma antigen NY-REN-64 antibody
      see all


    • Anti-IRAK4 antibody [Y279] (ab32511) at 1/1000 dilution (Purified) + K-562 (Human chronic myelogenous leukemia lymphoblast) whole cell lysates at 15 µg

      Goat Anti-Rabbit IgG H&L (HRP) (ab97051) at 1/20000 dilution

      Observed band size: 52 kDa
      why is the actual band size different from the predicted?

    • Immunocytochemistry/ Immunofluorescence analysis of Jurkat (Human T cell leukemia T lymphocyte) cells labeling IRAK4 with purified ab32511 at 1:500 dilution (2.6 µg/ml). Cells were fixed in 100% Methanol and permeabilized with None. Cells were counterstained with none. Goat anti rabbit IgG (Alexa Fluor® 488, ab150077) was used as the secondary antibody at 1:1000 (2 µg/ml) dilution. DAPI (blue) was used as nuclear counterstain. PBS instead of the primary antibody was used as the secondary antibody only control.
    • Flow Cytometry analysis of Jurkat (human acute T cell leukemia) cells labeling IRAK4 with purified ab32511 at 1/110 dilution (10ug/ml) (red). Cells were fixed with 4% paraformaldehyde and permeabilised with 90% methanol. A Goat anti rabbit IgG (Alexa Fluor® 488)(1/2000 dilution) was used as the secondary antibody. Rabbit monoclonal IgG (Black) was used as the isotype control, cells without incubation with primary antibody and secondary antibody (Blue) was used as the unlabeled control.

    • Immunocytochemistry/Immunofluorescence analysis of Jurkat (Human T cell leukemia cell line from peripheral blood) cells labeling IRAK4 with ab32511 (unpurified) at 1/100 dilution. Cells were fixed with 100% methanol. ab150077, an AlexaFluor® 488 conjugated goat anti-rabbit IgG (1/1000) was used as the secondary antibody. The cells were co-stained with ab195889, anti-alpha tubulin antibody [DM1A] - Microtubule Marker (Alexa Fluor® 594) at 1/200 dilution. Nuclei counterstained with DAPI (blue). 



    This product has been referenced in:

    • Kapelouzou A  et al. Differential expression patterns of Toll Like Receptors and Interleukin-37 between calcific aortic and mitral valve cusps in humans. Cytokine 116:150-160 (2019). Read more (PubMed: 30716659) »
    • Sun J  et al. Comprehensive RNAi-based screening of human and mouse TLR pathways identifies species-specific preferences in signaling protein use. Sci Signal 9:ra3 (2016). Read more (PubMed: 26732763) »
    See all 2 Publications for this product

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