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 Biotinylated Antibody
R&D Systems | Catalog # BAF847
Key Product Details
Species Reactivity
Validated:
Human
Cited:
Human, Mouse
Applications
Validated:
Western Blot
Cited:
Flow Cytometry, ELISA Detection, ELISA Development
Label
Biotin
Antibody Source
Polyclonal Goat IgG
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Product Specifications
Immunogen
S. frugiperda insect ovarian cell line Sf 21-derived recombinant human IL‑15 R alpha
Ile31-Thr172
Accession # EAW86418
Ile31-Thr172
Accession # EAW86418
Specificity
Detects human IL-15 R alpha in Western blots. In this format, approximately 5% cross-reactivity with recombinant human IL‑2 sR gamma is observed.
Clonality
Polyclonal
Host
Goat
Isotype
IgG
Applications for Human IL-15R alpha Biotinylated Antibody
Application
Recommended Usage
Western Blot
0.1 µg/mL
Sample: Recombinant Human IL‑15 R alpha Fc Chimera (Catalog # 147-IR)
Sample: Recombinant Human IL‑15 R alpha Fc Chimera (Catalog # 147-IR)
Reviewed Applications
Read 1 review rated 5 using BAF847 in the following applications:
Formulation, Preparation, and Storage
Purification
Antigen Affinity-purified
Reconstitution
Reconstitute at 0.2 mg/mL in sterile PBS.
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Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
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.
Calculators
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.
Long Name
Interleukin 15 Receptor alpha
Alternate Names
CD215, IL-15 R alpha, IL-15Ra, IL15 R alpha, IL15RA
Gene Symbol
IL15RA
UniProt
Additional IL-15R alpha Products
Product Documents for Human IL-15R alpha Biotinylated 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.
Product Specific Notices for Human IL-15R alpha Biotinylated Antibody
For research use only
Citations for Human IL-15R alpha Biotinylated Antibody
Customer Reviews for Human IL-15R alpha Biotinylated Antibody (1)
5 out of 5
1 Customer Rating
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Application: ELISASample Tested: Recombinant proteinSpecies: HumanVerified Customer | Posted 12/05/2019Detection of Fc-IL15/IL15Ra by ELISA
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Protocols
Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.
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- Western Blot Troubleshooting Guide
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