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Growth Factors & Cytokines

Recombinant Human sIL-4 Receptor α (CHO derived)

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Product Details

Catalogue Number: 200-04RC
Description:
Recombinant Human sIL-4 Receptor α (CHO derived)

IL-4 can signal through type I and type II receptor complexes, which share a common gamma chain (γc).  The type I receptor contains, in addition to the γc, 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 naïve CD4+ T cells and class switching to IgG1 and IgE.  PeproTech's CHO cell-derived Recombinant Human sIL-4 Receptor α is a 23.9 kDa glycoprotein corresponding to 209 amino acid residues of the extracellular domain of IL-4Rα. As a result of glycosylation, Recombinant Human sIL-4 Receptor α migrates with an apparent molecular mass of approximately 50-65 kDa by SDS-PAGE gel, under reducing conditions.

Source: CHO cells

Synonyms: soluble Interleukin-4Rα, soluble IL-4 Receptor alpha, CD124

AA Sequence: GNMKVLQEPT CVSDYMSIST CEWKMNGPTN CSTELRLLYQ LVFLLSEAHT CIPENNGGAG CVCHLLMDDV VSADNYTLDL WAGQQLLWKG SFKPSEHVKP RAPGNLTVHT NVSDTLLLTW SNPYPPDNYL YNHLTYAVNI WSENDPADFR IYNVTYLEPS LRIAASTLKS GISYRARVRA WAQCYNTTWS EWSPSTKWHN SYREPFEQH

Purity: ≥ 95% by SDS-PAGE gel and HPLC analyses.

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 105 units/mg.

Recombinant Human sIL-4 Receptor α (CHO derived) Biological Activity Graph

Calculated Molecular Weight: 23.9 kDa

Accession Number: P24394

Gene ID: 3566

Endotoxin: Endotoxin level is < 0.1 ng/ug of protein (< 1 EU/ug)

Country Of Origin: USA

Not for human use.

Research Interest