Key Product Details

Species Reactivity

Validated:

Mouse

Cited:

Human, Mouse, Bovine, Transgenic Mouse

Applications

Validated:

Western Blot, ELISA Capture (Matched Antibody Pair), Neutralization, Immunocytochemistry

Cited:

Immunohistochemistry, Immunohistochemistry-Frozen, Western Blot, Neutralization, Flow Cytometry, Immunocytochemistry, ELISA Capture, ELISA Development, ELISpot Development

Label

Unconjugated

Antibody Source

Polyclonal Goat IgG
View all IL-21 Primary Antibodies »

Product Specifications

Immunogen

E. coli-derived recombinant mouse IL‑21 (R&D Systems, Catalog # 594-ML)
Pro25-Ser146
Accession # Q9ES17

Specificity

Detects mouse IL-21 in ELISAs and Western blots. In sandwich ELISAs, less than 0.5% cross-reactivity with recombinant mouse (rm) IL‑2, rmIL‑4, rmIL-15, and recombinant human IL-21 is observed.

Clonality

Polyclonal

Host

Goat

Isotype

IgG

Endotoxin Level

<0.10 EU per 1 μg of the antibody by the LAL method.

Scientific Data Images for Mouse IL‑21 Antibody

IL‑21 antibody in Mouse Splenocytes by Immunocytochemistry (ICC).

IL‑21 in Mouse Splenocytes.

IL‑21 was detected in immersion fixed concanavalin A-stimulated mouse splenocytes using 15 µg/mL Mouse IL‑21 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF594) for 3 hours at room temperature. Cells were stained with the NorthernLights™ 557-conjugated Anti-Goat IgG Secondary Antibody (red; Catalog # NL001) and counterstained (green). View our protocol for Fluorescent ICC Staining of Non-adherent Cells.

Cell Proliferation Induced by IL-21 and Neutralization by Mouse IL-21 Antibody.

Recombinant Mouse IL-21 (Catalog # 594-ML) stimulates proliferation in the NK-92 human natural killer lymphoma cell line in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Mouse IL-21 (10 ng/mL) is neutralized (green line) by increasing concentrations of Mouse IL-21 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF594). The ND50 is typically 0.2-2 µg/mL.

Applications for Mouse IL‑21 Antibody

Application
Recommended Usage

Immunocytochemistry

5-15 µg/mL
Sample: Immersion fixed concanavalin A-stimulated mouse splenocytes

Western Blot

0.1 µg/mL
Sample: Recombinant Mouse IL‑21 (Catalog # 594-ML)

Neutralization

Measured by its ability to neutralize IL‑21-induced proliferation in the NK-92 human natural killer lymphoma cell line. The Neutralization Dose (ND50) is typically 0.2-2 µg/mL in the presence of 10 ng/mL Recombinant Mouse IL‑21.

Mouse IL-21 Sandwich Immunoassay

ELISA Capture (Matched Antibody Pair)
Recommended Concentration: 0.2-0.8 µg/mL
Use in combination with these reagents:
  • Detection Reagent: Mouse IL‑21 Biotinylated Antibody (Catalog # BAF594)
  • Standard: Recombinant Mouse IL-21 Protein (Catalog # 594-ML)
Please Note: Optimal dilutions of this antibody should be experimentally determined.

Reviewed Applications

Read 1 review rated 5 using AF594 in the following applications:

Formulation, Preparation, and Storage

Purification

Antigen Affinity-purified

Reconstitution

Reconstitute at 0.2 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.

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.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store 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.

Calculators

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Background: IL-21

Interleukin-21 (IL-21) and its receptor appear to play important roles in the regulation of the immune system. IL-21 is most related to IL-2, IL-4, and IL-15. 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 and IL-4 R alpha. Mouse IL-21 is a 146 amino acid (aa) residue protein with a 24 aa signal peptide. Mouse and human IL-21 share 57% amino acid sequence identity. IL‑21 is expressed by activated T cells. Although not fully elucidated, the IL-2 R gamma ( gamma c) chain appears to play a role in IL-21 R signaling. The IL‑21/IL‑21 R interaction appear to play important roles 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) PNAS 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

Alternate Names

CVID11, IL21, Za11

Entrez Gene IDs

59067 (Human); 60505 (Mouse); 365769 (Rat); 442935 (Canine); 100344172 (Rabbit)

Gene Symbol

IL21

UniProt

Q9ES17

Additional IL-21 Products

Product Documents for Mouse IL‑21 Antibody

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot or batch number in the search box below.

Note: Certificate of Analysis not available for kit components.

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Product Specific Notices for Mouse IL‑21 Antibody

For research use only

Citations for Mouse IL‑21 Antibody

Customer Reviews for Mouse IL‑21 Antibody (1)

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  • Mouse IL-21 Antibody
    Name: Katie Myers
    Application: ELISA
    Sample Tested: Serum
    Species: Mouse
    Verified Customer | Posted 11/14/2022
    Worked well as a capture spot for our Mouse Elisa.
    Mouse IL‑21 Antibody AF594

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Protocols

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