• Species Reactivity

  Human

• Specificity

  Detects human IL-27 R alpha /WSX‑1/TCCR in direct ELISAs and Western blots. In direct ELISAs, no cross-reactivity with recombinant human gp130 or  recombinant mouse IL-27 Ra is observed.

• Source

  Monoclonal Mouse IgG    _2B Clone # 191106

• Purification

  Protein A or G purified from hybridoma culture supernatant

• Immunogen

  Mouse myeloma cell line NS0-derived recombinant human IL-27 R alpha /WSX‑1/TCCR    
  Gly34-Lys516    
  Accession # Q6UWB1

• Formulation

  Supplied in a saline solution containing BSA and Sodium Azide.

• Label

  Phycoerythrin

Applications

• Recommended    
  Concentration

  Sample

• Flow Cytometry

  10 µL/10    ⁶ cells

  See below

• 
  

Please Note: Optimal dilutions should be determined by each laboratory for each application.  are available in the Technical Information section on our website.

Data Examples

Preparation and Storage

• Shipping

  The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

• Stability & Storage

  Protect from light.    Do not freeze.    

• 12 months from date of receipt, 2 to 8 °C as supplied.

Background: IL-27 R alpha/WSX-1/TCCR

IL‑27 R alpha (also known as WSX‑1 and TCCR) is a 96‑100 kDa member of the type I, group 2 cytokine receptor family (1 - 6). Mature IL‑27 R alpha  is a type I transmembrane glycoprotein that contains a 484 amino acid (aa) extracellular region, a 21 aa transmembrane segment and a 99 aa cytoplasmic domain. Consistent with type I cytokine receptors, the extracellular region contains four positionally conserved cysteine residues, a WSxWS motif (for receptor folding and ligand binding), and three fibronectin type III repeats. The intracellular domain contains a "box‑1" motif that may be involved with Janus kinases (3). One potential alternate splice form has been hypothesized that involves a 58 aa addition to the cytoplasmic domain and, based on mouse, a soluble 33 kDa splice form that shows a 20 aa substitution for aa 257‑636 may also occur in human (3, 7). The human IL‑27 R alpha extracellular region shares 63% amino acid identity with the mouse IL‑27 R alpha extracellular domain (2, 3). IL‑27 R alpha is expressed in mast cells, endothelial cells, NK cells, macrophages, monocytes, B cells, dendritic cells, and naïve T cells (1, 2, 4, 8). Typical of other class I cytokine receptor chains, the ligand binding IL‑27 R alpha molecule is known to heterodimerize with a signal‑transducing subunit (gp130) to form a functional IL‑27 receptor (9, 10). In addition, IL‑27 R alpha is reported to complex with CNTFR alpha and gp130 form a humanin receptor on neurons (7, 11), and to complex with gp130 and IL‑6 R to form a receptor for a p28:CLF heterodimeric cytokine on lymphocytes (12). Studies using IL‑27 R alpha /WSX‑1^‑/‑ mice reveal that IL‑27 has the ability to suppress T cell activity during infection, and to mediate an inhibition of both type 1 and type 2 T cell immunity (4, 13, 14). In particular, IL‑27 is known to act on naïve T cells, blocking their differentiation into a Th17 phenotype. Notably, cells committed to a Th17 phenotype, although they express a functional IL‑27 receptor, are unresponsive to the effects of IL‑27 (15). Activated T cells that are CD4⁺ and CD8⁺, and which express the IL‑27 receptor, can be induced by IL‑27 to form a double‑positive CD25⁺ FoxP3^‑ IFN‑ gamma plus IL‑10 secreting phenotype that both promotes and suppresses the inflammatory response (16).

• References:

1. Villarino, A.V. et al. (2004) J. Immunol. 173:715.

2. Chen, Q. et al. (2000) Nature 407:916.

3. Sprecher, C.A. et al. (1998) Biochem. Biophys. Res. Commun. 246:82.

4. Artis, D. et al. (2004) J. Immunol. 173:5626.

5. Yoshida, H. & Y. Miyazaki (2008) Int. J. Biochem. Cell Biol. 40:2379.

6. Yoshida, H. & M. Yoshiyuki (2008) Immunol. Rev. 226:234.

7. Hashimoto, Y. et al. (2009) Biochem. Biophys. Res. Commun. 389:95.

8. Holscher, C. et al. (2005) J. Immunol. 174:3534.

9. Pflanz, S. et al. (2004) J. Immunol. 172:2225.

10. Scheller, J. et al. (2005) Biochem. Biophys. Res. Commun. 326:724.

11. Hashimoto, Y. et al. (2009) Mol. Biol. Cell 20:2864.

12. Crabe, S. et al. (2009) J. Immunol. 183:7692.

13. Villarino, A. et al. (2003) J. Immunol. 170:645.

14. Hamano., S. et al. (2003) Immunity 19:657.

15. El-behi, M. et al. (2009) J. Immunol. 183:4957.

16. Fitzgerald, D.C. et al. (2007) Nat. Immunol. 8:1372.

• Long Name:

  Interleukin-27 Receptor Subunit alpha

• Entrez Gene IDs:

  9466 (Human); 50931 (Mouse)

• Alternate Names:

  class I cytokine receptor; CRL1IL-27R; Cytokine receptor-like 1; IL-27 R alpha; IL27R alpha; IL27R; IL27RA; IL-27Ra; IL-27R-alpha; interleukin 27 receptor, alpha; interleukin-27 receptor subunit alpha; TCCR; TCCRIL-27 receptor subunit alpha; T-cell cytokine receptor type 1; Type I T-cell cytokine receptor; WSX-1; WSX1IL-27R subunit alpha; zcytor1