Human IL‑21R Subunit Biotinylated Antibody

Catalog # Availability Size / Price Qty
BAF991
Product Details
Citations (1)
FAQs
Supplemental Products
Reviews (1)

Human IL‑21R Subunit Biotinylated Antibody Summary

Species Reactivity
Human
Specificity
Detects human IL-21 R Subunit in Western blots. In Western blots, approximately 10% cross-reactivity with recombinant mouse IL‑21 R Subunit is observed.
Source
Polyclonal Goat IgG
Purification
Antigen Affinity-purified
Immunogen
S. frugiperda insect ovarian cell line Sf 21-derived recombinant human IL-21 R Subunit
Cys20-Pro236
Accession # Q9HBE5
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
Label
Biotin

Applications

Recommended Concentration
Sample
Western Blot
0.1 µg/mL
Recombinant Human IL‑21 R Subunit Fc Chimera (Catalog # 991-R2)
Flow Cytometry
2.5 µg/106 cells
Human peripheral blood CD19+ B cells

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 0.2 mg/mL in sterile PBS.
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Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
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

Interleukin-21 (IL-21) and its receptor play an important role in the regulation of the immune system. IL-21 R, also called NILR (novel interleukin receptor), is a type I cytokine receptor with 4 conserved cysteine residues and an extracellular WSXWS motif. It is most closely related to IL-2 R beta, IL-4 R alpha, and IL-9 R. The gene for human IL-21 R has been mapped to chromosome 16p12. Human IL-21 R is a 538 amino acid (aa) residue type I transmembrane protein with a 19 aa signal peptide, a 217 aa extracellular domain, a 19 aa transmembrane domain, and a 283 aa cytoplasmic domain. IL-21 R is expressed on lymphoid tissues, peripheral B cells, and cell lines of T, B, and NK lineage. The common gamma  chain ( gamma c) is required for IL-21 R signaling. The IL-21/IL-21 R interaction appears to play an important role in B and T cell proliferation after antigen stimulation and NK cell maturation.

References
  1. Parrish-Novak, et al. (2000) Nature 408:57.
  2. Ozaki, K. et al. (2000) Proc. Natl. Acad. Sci. USA 97:11439.
  3. Dumoutier, L. et al. (2000) Proc. Natl. Acad. Sci. USA 97:10144.
  4. Asao, H. et al. (2001) J. Immunol. 167:1.
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

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Citation for Human IL‑21R Subunit Biotinylated 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 sustains CD28 expression on IL-15-activated human naive CD8+ T cells.
    Authors: Alves NL, Arosa FA, van Lier RA
    J. Immunol., 2005-07-15;175(2):755-62.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry

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Human IL‑21R Subunit Biotinylated Antibody
By Kurt Shanebeck on 09/17/2019
Application: ELISA Sample Tested: Recombinant protein Species: Human