Human IL-2 Antibody

Catalog #: MAB10442 Datasheet / COA / SDS

Catalog #	Availability	Size / Price	Qty
MAB10442-100
MAB10442-SP

Detection of IL‑2 in Human PBMCs by Flow Cytometry.

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Human IL-2 Antibody Summary

Species Reactivity

Human

Specificity

Detects human IL-2 in direct ELISAs.

Source

Monoclonal Mouse IgG₁ Clone # 5343

Purification

Protein A or G purified from hybridoma culture supernatant

Immunogen

E. coli-derived recombinant human IL‑2
Ala21-Thr153
Accession # NP_000577

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.

Endotoxin Level

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

Label

Unconjugated

Applications

Recommended Concentration

Sample

CyTOF-ready

Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

Intracellular Staining by Flow Cytometry

0.25 µg/10⁶ cells

See below

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 0.05-0.5 µg/mL in the presence of 2 ng/mL Recombinant Human 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

Intracellular Staining by Flow Cytometry

Detection of IL-2 antibody in Human PBMCs antibody by Flow Cytometry.

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Detection of IL‑2 in Human PBMCs by Flow Cytometry. Human peripheral blood mononuclear cells (PBMCs) treated with Cell Activation Cocktail 500x (Catalog # 5476) for 5 hours were stained with (A) Mouse Anti-Human IL-2 Monoclonal Antibody (Catalog # MAB10442) or (B) Mouse IgG1 isotype control antibody (Catalog # MAB002) followed by Anti-Mouse IgG APC-conjugated Secondary Antibody (Catalog # F0101B) and Mouse anti-Human CD3 PE-conjugated Monoclonal Antibody (Catalog # FAB100P). To facilitate intracellular staining, cells were fixed and permeabilized using FlowX FoxP3/Transcription Factor Fixation & Perm Buffer Kit (Catalog # FC012). View our protocol for Staining Intracellular Molecules.

Neutralization

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Cell Proliferation Induced by IL-2 and Neutralization by Human IL-2 Antibody. Recombinant Human IL-2 (202-IL) stimulates proliferation in the CTLL-2 mouse cytotoxic T cell line in a dose-dependent manner (orange line) as measured by Resazurin (AR002). Proliferation elicited by Recombinant Human IL-2 (2 ng/mL) is neutralized (green line) by increasing concentrations of Mouse Anti-Human IL-2 Monoclonal Antibody (Catalog # MAB10442). The ND₅₀ is typically 0.05-0.5 µg/mL.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Reconstitute at 0.5 mg/mL in sterile 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.

Background: IL-2

Interleukin 2 (IL-2) is a cytokine that stimulates the growth and differentiation of B cells, T cells, NK cells, and monocyte/macrophages. It functions through the heterotrimeric IL-2 receptor comprising alpha, beta, and gamma chains.

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