Mouse IL-2 Antibody

Catalog #: AB-402-NA
1 Citation Datasheet / COA / SDS

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AB-402-NA

Cell Proliferation Induced by IL‑2 and Neutralization by Mouse IL‑2 Antibody.

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All IL-2 Antibodies

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Mouse IL-2 Antibody Summary

Species Reactivity

Mouse

Specificity

Detects mouse IL-2 in direct ELISAs and Western blots. In direct ELISAs, less than 15% cross-reactivity with recombinant human IL-2, recombinant rat IL-2, recombinant equine IL-2, recombinant porcine IL-2 and recombinant bovine IL-2 is observed.

Source

Polyclonal Goat IgG

Purification

Protein A or G purified

Immunogen

E. coli-derived recombinant mouse IL-2
Ala21-Gln169
Accession # P04351

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose.

Endotoxin Level

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

Label

Unconjugated

Applications

Recommended Concentration

Sample

Western Blot

1 µg/mL

Recombinant Mouse IL‑2 (Catalog # 402-ML)

Neutralization

Measured by its ability to neutralize IL‑2-induced proliferation in the CTLL‑2 mouse cytotoxic T cell line [Gearing, A.J.H. and C.B. Bird (1987) in Lymphokines and Interferons, A Practical Approach. Clemens, M.J. et al. (eds): IRL Press. 276]. The Neutralization Dose (ND₅₀) is typically 2-8 µg/mL in the presence of 2 ng/mL Recombinant Mouse IL‑2.

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.

Scientific Data

Neutralization

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Cell Proliferation Induced by IL‑2 and Neutralization by Mouse IL‑2 Antibody. Recombinant Mouse IL‑2 (Catalog # 402-ML) stimulates proliferation in the CTLL‑2 mouse cytotoxic T cell line in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Mouse IL‑2 (2 ng/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Mouse IL‑2 Polyclonal Antibody (Catalog # AB-402-NA). The ND₅₀ is typically 2-8 µg/mL.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Reconstitute at 1 mg/mL in sterile PBS.

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-2

Interleukin-2 (IL-2) is a O-glycosylated four alpha -helix bundle cytokine that has potent stimulatory activity for antigen-activated T cells. It is expressed by CD4⁺ and CD8⁺ T cells, gamma δ T cells, B cells, dendritic cells, and eosinophils (1‑3). Mature mouse IL-2 shares 56% and 73% aa sequence identity with human and rat IL-2, respectively. It shows strain-specific heterogeneity in an N-terminal region that contains a poly-glutamine stretch (4). Mouse and human IL-2 exhibit cross-species activity (5). The receptor for IL-2 consists of three subunits that are present on the cell surface in varying preformed complexes (6‑8). The 55 kDa IL-2 R alpha is specific for IL-2 and binds with low affinity. The 75 kDa IL-2 R beta, which is also a component of the IL-15 receptor, binds IL-2 with intermediate affinity. The 64 kDa common gamma chain gamma c/IL-2 R gamma, which is shared with the receptors for IL-4, -7, -9, -15, and -21, does not independently interact with IL-2. Upon ligand binding, signal transduction is performed by both IL-2 R beta and gamma c. IL-2 is best known for its autocrine and paracrine activity on T cells. It drives resting T cells to proliferate and induces IL-2 and IL-2 R alpha synthesis (1, 2). It contributes to T cell homeostasis by promoting the Fas-induced death of naïve CD4⁺ T cells but not activated CD4⁺ memory lymphocytes (9). IL-2 plays a central role in the expansion and maintenance of regulatory T cells, although it inhibits the development of Th17 polarized cells (10‑12). Thus, IL-2 may be a key cytokine in the natural suppression of autoimmunity (13, 14).

References

Ma, A. et al. (2006) Annu. Rev. Immunol. 24:657.
Gaffen, S.L. and K.D. Liu (2004) Cytokine 28:109.
Kashima, N. et al. (1985) Nature 313:402.
Matesanz, F. et al. (1993) Immunogenetics 38:300.
Mosmann, T.R. et al. (1987) J. Immunol. 138:1813.
Liparoto, S.F. et al. (2002) Biochemistry 41:2543.
Wang, X. et al. (2005) Science 310:1159.
Bodnar, A. et al. (2008) Immunol. Lett. 116:117.
Jaleco, S. et al. (2003) J. Immunol. 171:61.
Malek, T.R. (2003) J. Leukoc. Biol. 74:961.
Laurence, A. et al. (2007) Immunity 26:371.
Kryczek, I. et al. (2007) J. Immunol. 178:6730.
Afzali, B. et al. (2007) Clin. Exp. Immunol. 148:32.
Fehervari, Z. et al. (2006) Trends Immunol. 27:109.

Long Name

Interleukin 2

Entrez Gene IDs

3558 (Human); 16183 (Mouse); 116562 (Rat); 396868 (Porcine); 280822 (Bovine); 403989 (Canine); 100034204 (Equine); 751114 (Feline); 100302458 (Rabbit)

Alternate Names

Aldesleukin; IL2; IL-2; IL-2lymphokine; interleukin 2; interleukin-2; involved in regulation of T-cell clonal expansion; Proleukin; T cell growth factor; T-cell growth factor; TCGF

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Citation for Mouse IL-2 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

Attenuation of autoimmune disease in Fas-deficient mice by treatment with a cytotoxic benzodiazepine.
Authors: Bednarski JJ, Warner RE, Rao T
Arthritis Rheum., 2003-03-01;48(3):757-66.
Species: Mouse
Sample Types: Whole Cells
Applications: ELISpot Development