IL-21R Antibody (155516)

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Product Details

Summary
Reactivity MuSpecies Glossary
Applications WB
Clone
155516
Clonality
Monoclonal
Host
Rat
Conjugate
Unconjugated
Concentration
LYOPH

Order Details

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Catalog# & Formulation Size Price

IL-21R Antibody (155516) Summary

Immunogen
S. frugiperda insect ovarian cell line Sf 21-derived recombinant mouse IL-21 R
Cys20-Pro236
Accession # Q9JHX3
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
N/A
Isotype
IgG1
Clonality
Monoclonal
Host
Rat
Gene
IL21R
Purity
Protein A or G purified from hybridoma culture supernatant
Innovator's Reward
Test in a species/application not listed above to receive a full credit towards a future purchase.

Applications/Dilutions

Dilutions
  • Western Blot 1 ug/mL
Publications
Read Publication using
MAB5961 in the following applications:

Packaging, Storage & Formulations

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.
Buffer
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
Preservative
No Preservative
Concentration
LYOPH
Purity
Protein A or G purified from hybridoma culture supernatant
Reconstitution Instructions
Reconstitute at 0.5 mg/mL in sterile PBS.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for IL-21R Antibody (155516)

  • CD360 antigen
  • CD360
  • IL-21 R
  • IL-21 receptor
  • IL21R
  • IL-21R
  • interleukin 21 receptor
  • interleukin-21 receptor
  • MGC10967
  • NILR
  • Novel interleukin receptor

Background

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).

  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.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Publications for IL-21R Antibody (MAB5961)(1)

We have publications tested in 1 confirmed species: Mouse.

We have publications tested in 1 application: Flow Cytometry.


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Bioinformatics

Gene Symbol IL21R
Uniprot