Mouse IL-21R Antibody

Catalog # Availability Size / Price Qty
MAB5961
MAB5961-SP
Product Details
Citations (1)
FAQs
Supplemental Products
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Mouse IL-21R Antibody Summary

Species Reactivity
Mouse
Specificity
Detects mouse IL-21 R in direct ELISAs and Western blots. In direct ELISAs, no cross-reactivity with recombinant human IL-21 R or recombinant mouse IL-2 R beta is observed.
Source
Monoclonal Rat IgG1 Clone # 155516
Purification
Protein A or G purified from hybridoma culture supernatant
Immunogen
S. frugiperda insect ovarian cell line Sf 21-derived recombinant mouse IL-21 R
Cys20-Pro236
Accession # Q9JHX3
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Applications

Recommended Concentration
Sample
Western Blot
1 µg/mL
Recombinant Mouse IL‑21 R Subunit Fc Chimera (Catalog # 596-MR)

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

Reconstitution Calculator

Reconstitution Calculator

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Preparation and Storage

Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Availability
Size / Price
Qty
RB01
Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: IL-21R

IL-21 R (interleukin-21 receptor) is a type I transmembrane glycoprotein within the class I cytokine receptor family, type 4 subfamily (1-5). Complex formation between IL-21 R and the common gamma  chain ( gamma c), also used for IL-2, IL-4, IL-7, IL-9, IL-13 and IL-15 receptors, is required for signaling (6, 7). Mouse IL-21 R cDNA encodes 521 amino acid (aa) including a 19 aa signal peptide, a 218 aa extracellular domain (ECD) with 4 conserved cysteine residues, a fibronectin type III domain, and a WSXWS motif, a 21 aa transmembrane domain and a 271 aa cytoplasmic domain with a Box 1 motif, a kinase domain, and several sites for tyrosine phosphorylation (4, 5). One such site, pY510, mediates STAT binding (1, 2). The mouse IL-21 R ECD shares 69%, 91%, 65%, 63% and 58% aa identity with human, rat, equine, canine and bovine IL-21 R, respectively. One potential 447 aa isoform, with an alternate start site at aa 83, lacks the four conserved ECD cysteines. IL‑21 R is expressed mainly on B cells (highest on mature, activated, follicular and germinal center B cells), NK cells, and activated T cells, but is also found on dendritic cells, alternatively activated macrophages, intestinal lamina propria fibroblasts and epithelial cells, and keratinocytes (1, 3-5). Both IL-21 and IL-4 are necessary for efficient B cell IgG1 production and normal germinal center architecture (8). B cell IL-21 R engagement induces Blimp-1 (which mediates plasma cell differentiation), and is important for memory responses (1, 9, 10).  IL-21 R engagement on mouse NK cells enhances their cytotoxic activity and IFN-gamma production (4, 11). IL‑21 R engagement on CD8+ T cells aids control of viral infection and tumor growth; IL-21 R is also necessary for sufficient numbers of regulatory T cells to combat chronic inflammation (1, 12, 13). IL-21 R expression is often upregulated in allergic skin inflammation, systemic lupus erythematosus and diffuse large B cell lymphoma (DLBCL) (1, 2, 14, 15).

References
  1. Leonard, W.J. et al. (2008) J. Leukoc. Biol. 84:348.
  2. Konforte, D. et al. (2009) J. Immunol. 182:1791.
  3. Monteleone, G. et al., 2009, Cytokine Growth Factor Rev. 20:185.
  4. Parrish-Novak, et al. (2000) Nature 408:57.
  5. Ozaki, K. et al. (2000) Proc. Natl. Acad. Sci. USA 97:11439.
  6. Asao, H. et al. (2001) J. Immunol. 167:1.
  7. Habib, T. et al. (2002) Biochemistry 41:8725.
  8. Ozaki, K. et al. (2002) Science 298:1630.
  9. Rankin, A.L. et al. (2011) J. Immunol. 186:667.
  10. King, I.L. et al. (2010) J. Immunol. 185:6138.
  11. Kasaian, M.T. et al. (2002) Immunity 16:559.
  12. Frohlich, A. et al. (2009 Science 324:1576.
  13. Tortola, L. et al. (2010) Blood 116:5200.
  14. Jin, H. et al. (2009) J. Clin. Invest. 119:47.
  15. Sarosiek, K.A. et al. (2010) Blood 115:570.
Long Name
Interleukin 21 Receptor
Entrez Gene IDs
50615 (Human); 60504 (Mouse); 102135042 (Cynomolgus Monkey); 705759 (Rhesus Macaque)
Alternate Names
CD360 antigen; CD360; IL-21 R; IL-21 receptor; IL21R; IL-21R; interleukin 21 receptor; interleukin-21 receptor; MGC10967; NILR; Novel interleukin receptor

Product Datasheets

Citation for Mouse IL-21R Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

1 Citation: Showing 1 - 1

  1. IL-21 Reduces Immediate Hypersensitivity Reactions in Mouse Skin by Suppressing Mast Cell Activation or IgE Production.
    Authors: Tamagawa-Mineoka R, Kishida T, Mazda O
    J. Invest. Dermatol., 2011;131(7):1513-20.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: Flow Cytometry

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