Human IL-4R alpha Antibody

Catalog # Availability Size / Price Qty
Product Details
Citations (1)
Supplemental Products

Human IL-4R alpha Antibody Summary

Species Reactivity
Detects human IL-4 R alpha in direct ELISAs and Western blots. In direct ELISAs and Western blots, less than 5% cross-reactivity with recombinant human (rh) IL-1 sRI, rhIL-1 sRII, rhIL-2 sR alpha, rhIL-2 sR beta, rhIL-2 sR gamma, rhIL-3 sR alpha, and rhIL-5 sR alpha is observed.
Polyclonal Goat IgG
Antigen Affinity-purified
S. frugiperda insect ovarian cell line Sf 21-derived recombinant human IL‑4 R alpha
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
0.1 µg/mL
Recombinant Human IL‑4 R alpha (Catalog # 230-4R)
Flow Cytometry
2.5 µg/106 cells
Daudi human Burkitt's lymphoma cell line
Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

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.

Reconstitution Calculator

Reconstitution Calculator

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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: IL-4R alpha

Interleukin 4 (IL‑4) is a pleiotropic cytokine produced by activated T cells, mast cells, and basophils. The biological functions of IL‑4 are mediated by the binding of IL‑4 to high‑affinity cell surface receptor complexes. Two types of IL‑4 receptor complexes have been described. The type I IL‑4 receptor complex is composed of a high‑affinity IL‑4‑binding subunit (referred to as IL‑4 R alpha ) and the common gamma chain that does not bind IL‑4 by itself. The type II IL‑4 receptor complex is composed of IL‑4 R alpha and IL‑13 R alpha 1. Besides IL‑4 signals, the type II IL‑4 receptor complex can also transduce IL‑13 signals. In the type II complex, the IL‑4 R alpha subunit binds only IL‑4 and not IL‑13. Similarly, the IL‑13 R alpha 1 subunit binds only IL‑13 and not IL‑4. The cDNA clones for both the human and mouse IL‑4 R alpha have been isolated and shown to encode an approximately 140 kDa type I transmembrane protein with a large cytoplasmic domain that is essential for signal transduction. In mouse cells, an alternatively spliced variant encoding a soluble secreted IL‑4 R alpha isoform has also been identified. Naturally occurring soluble IL‑4 R alpha that binds IL‑4 with high‑affinity has been found in mouse and human biological fluids.

  1. Keegan, A.D. (2001) in Cytokine Reference, Academic Press, Vol. 1:127.
Long Name
Interleukin 4 Receptor alpha
Entrez Gene IDs
3566 (Human); 16190 (Mouse)
Alternate Names
CD124 antigen; CD124; IL-4 R alpha; IL-4 receptor subunit alpha; IL4R alpha; IL-4R alpha; IL-4R subunit alpha; IL4R; IL-4Ra; IL4RACD124; IL-4R-alpha; interleukin 4 receptor; interleukin-4 receptor alpha chain; interleukin-4 receptor subunit alpha

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Citation for Human IL-4R alpha 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. Opposing control of rhabdomyosarcoma growth and differentiation by myogenin and interleukin 4.
    Authors: Nanni P, Nicoletti G, Palladini A, Astolfi A, Rinella P, Croci S, Landuzzi L, Monduzzi G, Stivani V, Antognoli A, Murgo A, Ianzano M, De Giovanni C, Lollini PL
    Mol. Cancer Ther., 2009-04-01;8(4):754-61.
    Species: Mouse
    Sample Types: Cell Lysates
    Applications: Western Blot


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Isotype Controls

Reconstitution Buffers

Secondary Antibodies

Goat IgG (H+L) Antibody


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