Human IL-4R alpha Biotinylated Antibody

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Product Details
Citations (1)
Supplemental Products

Human IL-4R alpha Biotinylated Antibody Summary

Species Reactivity
Detects human IL-4 R alpha in Western blots. In Western blots, less than 5% cross-reactivity with recombinant human (rh) IL‑1 RII, rhIL-2 R beta, and rhIL‑5 R alpha is observed and less than 1% cross-reactivity with rhIL-1 RI, rhIL-2 R gamma, and rhIL-3 R 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 BSA as a carrier protein.


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

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.
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 Biotinylated 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. Neutrophil Extracellular Traps Reprogram IL-4/GM-CSF-Induced Monocyte Differentiation to Anti-inflammatory Macrophages
    Authors: AB Guimarães-, NC Rochael, F Oliveira, J Echevarria, EM Saraiva
    Front Immunol, 2017-05-17;8(0):523.
    Species: Human
    Sample Types: Complex Sample Type
    Applications: Western Blot


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