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sIL-4Rα, Human Recombinant

Plays an important role in regulating the differentiation of naive CD4 T cells and class switching to IgG1 and IgE.
Catalog #: P1287

In stock

SKU-Size Size Price Qty
P1287-3 3 μg
$115.00
P1287-15 15 μg
$295.00
More Sizes Get Quote

Product Details

Alternate Name soluble IL-4 receptor alpha, CD124, IL-4R subunit alpha, IL-4R-alpha, IL-4RA, Soluble IL-4 receptor subunit alpha, Soluble IL-4R-alpha, sIL4Ralpha/prot, IL-4-binding protein, IL4-BP
Accession # P24394
Source HEK293 cells
Appearance Lyophilized
Purity by SDS-PAGE ≥ 98%
Endotoxin Level <0.1 EU/μg
Biological Activity The ED50 was determined by its ability to inhibit the IL-4 dependent proliferation of human TF-1 cells is ≤ 5.0 ng/ml (in the presence of 0.5 ng/ml of IL-4), corresponding to a specific activity of ≥ 2 x 10 AA Sequence
Reconstitution Instructions Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/ml. Note: Slow to dissolve. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at -20°C to -80°C.
Amino Acid Sequence GNMKVLQEPT CVSDYMSIST CEWKMNGPTN CSTELRLLYQ LVFLLSEAHT CIPENNGGAG CVCHLLMDDV VSADNYTLDL WAGQQLLWKG SFKPSEHVKP RAPGNLTVHT NVSDTLLLTW SNPYPPDNYL YNHLTYAVNI WSENDPADFR IYNVTYLEPS LRIAASTLKS GISYRARVRA WAQCYNTTWS EWSPSTKWHN SYREPFEQH
Handling Centrifuge the vial prior to opening.
Storage Conditions -20°C
Shipping Conditions Gel Pack
USAGE For Research Use Only! Not For Use in Humans.

Details

IL-4 can signal through type I and type II receptor complexes, which share a common γ chain (γc). The type I receptor contains in addition to the γ chain an IL-4Rα subunit, whereas the type II receptor contains the IL-13Rα. The secreted extracellular domain of IL-4Rα, called sIL-4Rα, binds IL-4 and antagonizes its activity. It plays an important role in regulating the differentiation of naive CD4 T cells and class switching to IgG1 and IgE. Recombinant human sIL-4Rα is a 209 amino acid protein which corresponds to the entire extracellular domain of IL-4Rα.


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