IL-4R alpha/CD124 Protein, Cynomolgus (HEK293, His)
Based on 1 Customer Validation
IL-4R alpha is a subunit alpha shared by IL-4 and IL-13 receptors, found in leukocytes originally. IL-4R alpha couples to the JAK1/2/3-STAT6 pathway and involves in promoting Th2 differentiation. IL-4R alpha/CD124, Cynomolgus consists of 825 amino acids (M1-S825). IL-4R alpha/CD124 Protein, Cynomolgus (M26-R232) is produced in HEK293 cells, including a Fibronectin typr III domain (125-224 a.a) and a C-Terminal His-tag.
- Species: Cynomolgus
- Source: HEK293
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Storage:Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.
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Biological Activity
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Technical Parameters
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Product Properties
- Documentation
- References
- Help & FAQs
Biological Activity
Description
IL-4R alpha is a subunit alpha shared by IL-4 and IL-13 receptors, found in leukocytes originally. IL-4R alpha couples to the JAK1/2/3-STAT6 pathway and involves in promoting Th2 differentiation[1]. IL-4R alpha/CD124, Cynomolgus consists of 825 amino acids (M1-S825). IL-4R alpha/CD124 Protein, Cynomolgus (M26-R232) is produced in HEK293 cells, including a Fibronectin typr III domain (125-224 a.a) and a C-Terminal His-tag.
Background
Interleukin-4R alpha (IL-4Rα), also known as CD124 and B cell stimulatory factor (BSF) receptor, is one of the anti-inflammatory cytokines, and highly expressed in activated T-cells[1].
IL-4R alpha participates in forming two interleukin receptors in different cell types. For the type I receptor, depends on IL-4R alpha binding IL-4 to recruit IL-2R gamma chain in immune cells. IL-2R gamma is the common subunit for a variety of interleukin receptors, involved in the stimulation of neutrophil phagocytosis by IL-15. For the type II receptor, depends on IL-4R alpha binding IL-4 to recruit IL-13R alpha 1 chain. IL-13R alpha 1 is an alternat accessory protein to the common cytokine receptor gamma chain in non-immune cells[2][3].
The sequence of amino acids in IL-4R alpha proteins is very different among different animals.
IL-4 R alpha generates a soluble form by alternate splicing or proteolysis, maintaining ligand binding properties and inhibiting IL-4 bioactivity. IL-4 R alpha soluble isoform 1 can be produced by proteolytic cleavage at the cell surface (shedding) by a metalloproteinase[4].
IL-4 R alpha plays an important role in Th2-biased immune responses, alternative macrophage activation, mucosal immunity, allergic inflammation, tumor progression, and atherogenesis[5].
In Vitro
IL-4Rα is regulated by variant IL-4 (VIL-4), produced by Mycobacterium tuberculosis and bacillus Calmette-Guérin infections of macaques, and induces expansion of Vgamma2Vdelta2 T cells[1]
In Vivo
IL-4Rα is regulated by variant IL-4 (VIL-4), produced by Mycobacterium tuberculosis and bacillus Calmette-Guérin infections of macaques, and induces expansion of Vgamma2Vdelta2 T cells[6]
Verified Bioactivity
Immobilized Human IL-4-Fc at 5 μg/mL (100 μL/well) can bind Cynomolgus IL-4Ra-His. The ED50 of Recombinant Human IL-4Ra-His is 50-150 ng/mL.
Technical Parameters
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Species Cynomolgus
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Source HEK293
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Tag C-6*His
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Accession
G7Q0S7 (M26-R232)
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Gene ID/
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Molecular Construction
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N-term
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IL-4Rα (M26-R232)
Accession # G7Q0S7 -
6*His
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C-term
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Protein Length
Partial
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Synonyms
Interleukin-4 receptor subunit alpha; EGM_11592
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AA Sequence
MKVLQEPACVSDYMSISTCEWKMGGPTNCSAELRLLYQLVFQSSETHTCVPENNGGVGCVCHLLMDDVVSMDNYTLDLWAGQQLLWKGSFKPSEHVKPRAPGNLTVHTNVSDTVLLTWSNPYPPDNYLYNDLTYAVNIWSENDPAYSRIHNVTYLKPTLRIPASTLKSGISYRARVRAWAQHYNTTWSEWSPSTKWYNSYREPFEQR
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Predicted Molecular Mass
24.6 kDa
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Molecular Weight
Approximately 37-58 kDa, based on SDS-PAGE under reducing conditions, due to the glycosylation.
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Purity
≥ 95%, as determined by reducing SDS-PAGE.
Product Properties
Lyophilized powder
Lyophilized from a 0.2 μm filtered solution of PBS, pH 7.4.
<1 EU/μg, determined by LAL method.
It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O. For long term storage it is recommended to add a carrier protein (0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose).
Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.
Room temperature in continental US; may vary elsewhere.
Documentation
References
[1]. Keegan AD,et al. An IL-4 receptor region containing an insulin receptor motif is important for IL-4-mediated IRS-1 phosphorylation and cell growth. Cell. 1994 Mar 11;76(5):811-20. [Content Brief]
[2]. Zurawski SM, et al. The primary binding subunit of the human interleukin-4 receptor is also a component of the interleukin-13 receptor. J Biol Chem. 1995 Jun 9;270(23):13869-78. [Content Brief]
[3]. Rolling C, et al. IL4 and IL13 receptors share the gamma c chain and activate STAT6, STAT3 and STAT5 proteins in normal human B cells. FEBS Lett. 1996 Sep 9;393(1):53-6. [Content Brief]
[4]. Jung T, et al. Soluble human interleukin-4 receptor is produced by activated T cells under the control of metalloproteinases. Int Arch Allergy Immunol. 1999 May;119(1):23-30. [Content Brief]
[5]. HageT,etal.Crystalstructureoftheinterleukin-4/receptoralphachaincomplexrevealsamosaicbindinginterface.Cell.1999Apr16;97(2):271-81. [Content Brief]
[6]. Yuan Z, et al. Tuberculosis-induced variant IL-4 mRNA encodes a cytokine functioning as growth factor for (E)-4-hydroxy-3-methyl-but-2-enyl pyrophosphate-specific Vgamma2Vdelta2 T cells. J Immunol. 2009 Jan 15;182(2):811-9. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
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