Product Information

Contents: Fluorescein isothiocyanate (FITC) anti-human IL-15Ra (Interleukin-15 Receptor Alpha, IL-15 Receptor)
Catalog Number: 11-7159
Sizes: 25 tests, 100 tests
Formulation: Phosphate buffered saline, pH 7.2, less than or equal to 0.09% NaN₃, BSA and/or gelatin for protein stabilization
Storage Conditions: Store at 4°C.
DO NOT FREEZE.
LIGHT-SENSITIVE MATERIAL.
Clone: eBioJM7A4
Isotype: Mouse IgG2b

Staining of PBMCs stimulated overnight with LPS + IFNγ with PE anti-human CD11b (CBRM1/5) (cat. 12-0113) and FITC Mouse IgG2b Iso Cntrl (cat. 11-4732) (left) or FITC Human IL-15 Receptor Alpha (right). Cells in the monocyte gate were used for analysis.

Available Formats of This Product
Cat. No.	Format	Excite (nm)	Emit (nm)	Reported Applications
11-7159	Fluorescein isothiocyanate (FITC) anti-human IL-15Ra (Interleukin-15 Receptor Alpha, IL-15 Receptor)	488	518	FC
12-7159	Phycoerythrin (PE) anti-human IL-15Ra (Interleukin-15 Receptor Alpha, IL-15 Receptor)	488	575	FC
14-7159	Affinity Purified anti-human IL-15Ra (Interleukin-15 Receptor Alpha, IL-15 Receptor)	N/A	N/A	FC IP WB

Questions? Please consult our answers to frequently asked questions at http://www.ebioscience.com/faq.

Description

The eBioJM7A4 monoclonal antibody reacts with the IL-15 receptor alpha chain (IL-15Rα). IL-15 and IL-2 are cytokines with overlapping, but distinct, biologic effects. Their receptors share 2 subunits, the IL2R-β and -γ chains, which are essential for signal transduction. The IL-15R-α receptor is structurally related to IL-2R-α. However, the IL-15Rα alone binds IL-15 with a 1,000-fold higher affinity than that seen with IL-2R-α and IL-2. In the human, 3 differentially spliced human IL15R-α variants that are all capable of high affinity binding of IL-15 have been isolated. The cytoplasmic domain of IL15R-α, like that of IL2R-α, is dispensable for mitogenic signaling, suggesting that the primary role of the alpha chains is to confer high affinity binding. At high concentrations, IL-15, like IL-2, is able to signal through a complex of IL2R-β and IL2R-γ in the absence of the alpha subunit.

Applications Reported

For research use only, not for diagnostic or therapeutic use. This eBioJM7A4 antibody has been reported for use in intracellular staining followed by flow cytometric analysis.

Applications Tested

This eBioJM7A4 antibody has been pre-titrated and tested by flow cytometric analysis of LPS and IFN-γ-stimulated PBMCs. This can be used at 20 μl (0.5 μg) per 100 μl blood (or per 1 million cells in 100 μl total staining volume).

References

Vamosi G, Bodnar A, Vereb G, Jenei A, Goldman CK, Langowski J, Toth K, Matyus L, Szollosi J, Waldmann TA, Damjanovich S. IL-2 and IL-15 receptor alpha-subunits are coexpressed in a supramolecular receptor cluster in lipid rafts of T cells. Proc Natl Acad Sci U S A. 2004 Jul 27;101(30):11082-7. (JM7A4, FRET, PubMed)

Dubois S, Mariner J, Waldmann TA, Tagaya Y. IL-15Ralpha recycles and presents IL-15 In trans to neighboring cells. Immunity. 2002 Nov;17(5):537-47. (JM7A4, FC, WB, PubMed)

Anderson, D., et al. 1995. Functional characterization of the human interleukin-15 receptor alpha chain and close linkage of IL15RA and IL2RA genes. J. Biol. Chem. 270: 29862-29869.

Giri, J., et al. 1995. Identification and cloning of a novel IL-15 binding protein that is structurally related to the alpha of the IL-2 receptor. EMBO J. 14: 3654-3663.

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Cat. 11-4732 FITC Mouse IgG2b Isotype Control