Human IRAK4 Antibody

Catalog # Availability Size / Price Qty
Detection of Human IRAK4 by Western Blot.
2 Images
Product Details
Citations (1)
Supplemental Products

Human IRAK4 Antibody Summary

Species Reactivity
Detects human IRAK4 in Western blots. In Western blots, less than 1% cross-reactivity with recombinant human (rh) IRAK1 and rhIRAK2 is observed.
Polyclonal Goat IgG
Antigen Affinity-purified
E. coli-derived recombinant human IRAK4
Accession # Q9NWZ3
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.


Recommended Concentration
Western Blot
1 µg/mL
See below
5-15 µg/mL
See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Data Examples

Western Blot Detection of Human IRAK4 antibody by Western Blot. View Larger

Detection of Human IRAK4 by Western Blot. Western blot shows lysates of A431 human epithelial carcinoma cell line and K562 human chronic myelogenous leukemia cell line. PVDF membrane was probed with 1 µg/mL Goat Anti-Human IRAK4 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3919) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF109). For additional reference, recombinant human IRAK1, IRAK2, and IRAK4 (2 ng/lane) were included. A specific band for IRAK4 was detected at approxi­mately 55 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Immunocytochemistry IRAK4 antibody in THP-1 Human Cell Line by Immunocytochemistry (ICC). View Larger

IRAK4 in THP‑1 Human Cell Line. IRAK4 was detected in immersion fixed THP-1 human acute monocytic leukemia cell line using Goat Anti-Human IRAK4 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3919) at 15 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Goat IgG Secondary Antibody (red; Catalog # NL001) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm. View our protocol for Fluorescent ICC Staining of Non-adherent Cells.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Preparation and Storage

Reconstitute at 0.2 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Size / Price
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: IRAK4

IL-1 receptor-associated kinases (IRAKs) are serine/threonine kinases that help mediate signaling from Toll-like receptor (TLR) and IL-1 receptor family members. Four human IRAKs have been identified: IRAK1, IRAK2, IRAK-M, and IRAK4. Upon TLR ligand challenge, IRAK4 knockout mice exhibit severely impaired NF-kappa B activation. IRAK4 mutations have been described in patients with recurrent bacterial infections and poor inflammatory responses.

Long Name
Interleukin-1 Receptor-Associated Kinase 4
Entrez Gene IDs
51135 (Human); 266632 (Mouse); 300177 (Rat)
Alternate Names
EC 2.7.11; EC; interleukin-1 receptor-associated kinase 4; IPD1; IRAK4; IRAK-4; NY-REN-64; REN64; Renal carcinoma antigen NY-REN-64

Product Datasheets

Citation for Human IRAK4 Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

1 Citation: Showing 1 - 1

  1. Contribution of globular death domains and unstructured linkers to MyD88.IRAK-4 heterodimer formation: an explanation for the antagonistic activity of MyD88s.
    Authors: Mendoza-Barbera E, Corral-Rodriguez MA, Soares-Schanoski A, Velarde M, Macieira S, Messerschmidt A, Lopez-Collazo E, Fuentes-Prior P
    Biochem. Biophys. Res. Commun., 2009;380(1):183-7.
    Species: Human
    Sample Types: Cell Lysates
    Applications: Western Blot


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Isotype Controls

Reconstitution Buffers

Secondary Antibodies

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