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Mouse IL-4 R alpha / CD124 Protein, Fc Tag  pdf  pdf  pdf


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Synonym

IL4R,CD124,IL4RA

Source

Mouse IL-4 R alpha / CD124 Protein, Fc Tag (Mouse IL-4 R alpha, Fc Tag) Ile 26 - Arg 233 (Accession # NP_001008700) was produced in human 293 cells (HEK293) at ACROBiosystems.

Molecular Characterization

Mouse IL-4 R alpha, Fc Tag is fused with a human IgG1 Fc tag at the C-terminus, and has a calculated MW of 51 kDa. The predicted N-terminus is Ile 26. DTT-reduced Protein migrates as 60-66 kDa in SDS-PAGE .

Endotoxin

Less than 1.0 EU per μg of the Mouse IL-4 R alpha, Fc Tag by the LAL method.

Purity

>95% as determined by SDS-PAGE.

Formulation

Lyophilized from 0.22 μm filtered solution in 50 mM tris, 100 mM glycine, pH7.5. Normally Mannitol or Trehalose are added as protectants before lyophilization.

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Reconstitution

See Certificate of Analysis for reconstitution instructions and specific concentrations.

Storage

Avoid repeated freeze-thaw cycles.

No activity loss was observed after storage at:
In lyophilized state for 1 year (4oC); After reconstitution under sterile conditions for 3 months (-70oC).

 

SDS-PAGE


Mouse IL-4 R alpha / CD124 Protein, Fc Tag
The purity of Mouse IL-4 R alpha, Fc Tag was determined by DTT-reduced (+) SDS-PAGE and staining overnight with Coomassie Blue.
 
 

Background

IL-4 is a pleiotropic cytokine produced by activated Th2 cells and mast cells, and plays a pivotal role in immune responses. The effects of IL-4 are mediated after binding to high affinity receptor complexes present on hematopoietic as well as non-hematopoietic cells. Hematopoietic cellular responses to IL-4 are mediated by a high affinity receptor complex comprised of the 140 kDa IL4Rα (CD124)subunit and the 70 kDa common cytokine γc chain (CD132). Interleukin 4 Receptor (IL4R) also known as CD124, IL4Rα and BSF receptor, is a type I cytokine receptor produced by activated Th2 cells and mast cells, and plays an important role in Th2-­biased immune responses, alternative macrophage activation, mucosal immunity, allergic inflammation, tumor progression, and atherogenesis. A soluble form of the encoded IL4R protein can be produced by an alternate splice variant or by proteolysis of the membrane-bound protein, and this soluble form can inhibit IL4-mediated cell proliferation and IL5 upregulation by T-cells. IL4R can alternatively associate with IL­13Ra1 to form the type II receptor which is responsive to both IL­4 and IL­13. Interleukin-4 receptor has been shown to interact with SHC1.

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References