Interleukin 15 receptor alpha (IL-15 R alpha ) is a high affinity receptor that specifically binds IL-15 with high affinity and associates as a heterotrimer with the IL-2 receptors beta and gamma subunits to initiate signal transduction. IL-15 R alpha is expressed on a wide variety of T cells and B cells as well as non-lymphoid cells. IL‑15 R alpha is a 58-60 kDa protein that shares structural similarities to the IL-2 R alpha protein. IL-15 R alpha and IL-2 R alpha genes also share similar intron-exon organization and are closely linked on human chromosome 10p14-p15. Human IL-15 R alpha shares 45% amino acid (aa) homology with the mouse form of the receptor. Eight isoforms of IL‑15 R alpha mRNA have been identified resulting from alternative splicing events involving different exons. The exclusion of exon 2 results in an IL-15 R alpha isoform that does not bind IL-15. Human IL-15 R alpha DE3 cDNA encodes a 267 aa protein that contains a 30 aa signal sequence, a 175 aa extracellular region containing one N-linked glycosylation site, a 21 aa transmembrane domain and a 41 aa cytoplasmic tail. Signaling of IL-15 can occur in one of three ways; through the heterotrimeric complex of IL-15 R alpha, IL-2 R beta, and IL-2 R gamma c, through the heterodimeric complex of IL-2 receptors beta and gamma common, through a novel 60-65 kDa IL-15 RX subunit found on mast cells. The binding of IL-15 to IL-15 R alpha has been reported to antagonize the TNF-alpha -mediated apoptosis in fibroblasts by competing with TNF RI for TRAF2 binding.
Human IL-15R alpha APC-conjugated Antibody
R&D Systems | Catalog # FAB1471A
Key Product Details
Species Reactivity
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Applications
Validated:
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Label
Antibody Source
Product Specifications
Immunogen
Ile31-Thr172
Accession # EAW86418
Specificity
Clonality
Host
Isotype
Scientific Data Images for Human IL-15R alpha APC-conjugated Antibody
Detection of IL‑15 R alpha in Human PBMCs by Flow Cytometry.
Human peripheral blood mononuclear cells (PBMCs) either (A) untreated or (B) treated with PHA overnight were stained with Mouse Anti-Human IL-15 Ra APC-conjugated Monoclonal Antibody (Catalog # FAB1471A) and Mouse Anti-Human CD4 APC-conjugated Monoclonal Antibody (Catalog # FAB3791A). Quadrant markers were set based on control antibody staining (Catalog # IC0041A). View our protocol for Staining Membrane-associated Proteins.Applications for Human IL-15R alpha APC-conjugated Antibody
Flow Cytometry
Sample: Human peripheral blood mononuclear cells (PBMCs) treated with PHA
Reviewed Applications
Read 1 review rated 4 using FAB1471A in the following applications:
Spectra Viewer
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- Antigen Density Selector - Match fluorochrome brightness with antigen density
Formulation, Preparation, and Storage
Purification
Formulation
Shipping
Stability & Storage
- 12 months from date of receipt, 2 to 8 °C as supplied.
Background: IL-15R alpha
References
- Anderson, D.M. et al. (1995) J. Biol. Chem. 270:29862.
- Bulfone-Paus, S. et al. (1999) FASEB 13:1575.
- Waldemann, T.A. and Y. Tagaya (1999) Ann. Rev. Immunol. 17:19.
- Dubois, S. et al. (1999) J. Biol. Chem. 274:26978.
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Additional IL-15R alpha Products
Product Documents for Human IL-15R alpha APC-conjugated Antibody
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Product Specific Notices for Human IL-15R alpha APC-conjugated Antibody
For research use only
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Application: Flow CytometrySample Tested: Peripheral blood mononuclear cells (PBMCs)Species: HumanVerified Customer | Posted 12/16/2017
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Protocols
Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.
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