Canine CD25/IL-2R alpha Alexa Fluor® 750-conjugated Antibody
R&D Systems, part of Bio-Techne | Catalog # AF6227S
Conjugate
Catalog #
Key Product Details
Species Reactivity
Canine
Applications
CyTOF-ready, Flow Cytometry
Label
Alexa Fluor 750 (Excitation = 749 nm, Emission = 775 nm)
Antibody Source
Polyclonal Sheep IgG
Product Specifications
Immunogen
Mouse myeloma cell line NS0-derived recombinant canine CD25/IL-2 Rα
Tyr19-Ile238
Accession # BAI49682
Tyr19-Ile238
Accession # BAI49682
Specificity
Detects canine CD25/IL-2 R alpha in direct ELISAs. In direct ELISAs, less than 5% cross-reactivity with recombinant human CD25/IL-2 R alpha, recombinant mouse CD25/IL-2 R alpha, and recombinant rat CD25/IL-2 R alpha is observed.
Clonality
Polyclonal
Host
Sheep
Isotype
IgG
Applications
Application
Recommended Usage
CyTOF-ready
Optimal dilution of this antibody should be experimentally determined.
Flow Cytometry
Optimal dilution of this antibody should be experimentally determined.
Formulation, Preparation, and Storage
Purification
Antigen Affinity-purified
Formulation
Supplied 0.2mg/ml in 1X PBS with RDF1 and 0.09% Sodium Azide
Shipping
The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Protect from light. Do not freeze. 12 months from date of receipt, 2 to 8 °C as supplied
Background: CD25/IL-2R alpha
IL-2 receptor alpha (IL-2 R alpha), also known as CD25, is a 55 kDa type I membrane glycoprotein that belongs to the family of cytokine receptors that utilize the common gamma chain subunit ( gammac). IL‑2 R alpha is primarily expressed on activated T cells and on regulatory T cells (Treg) (1‑3). The canine IL-2 R alpha cDNA encodes a 268 amino acid (aa) precursor that includes a 20 aa signal peptide, a 217 aa extracellular domain (ECD) with two Sushi domains, a 19 aa transmembrane segment, and an 12 aa cytoplasmic domain (4). Within the ECD, canine IL-2 R alpha shares 49% - 60% aa sequence identity with human, mouse, and rat IL-2 R alpha. IL-2 R beta (CD122) and gammac (IL‑2 R gamma/CD132) dimerize to form a constitutively expressed intermediate affinity IL-2 receptor (5, 6). By itself, IL-2 R alpha binds IL-2 with low affinity. It associates with IL-2 R beta and gammac to generate a ternary high affinity IL-2 receptor complex (7). A soluble form of IL‑2 R alpha can be generated by proteolytic cleavage of the cell surface receptor, rendering the T cell unresponsive to IL-2 (8, 9). Increased serum levels of soluble IL‑2 R alpha are found in some cancers and immune disorders (10). IL-2 R alpha is required for activation induced cell death (AICD) of naive T cells, a mechanism responsible for deleting autoreactive T cell clones (11, 12). IL-2 R alpha is also required for the development of CD4+CD25+ Treg which suppress autoreactive CD4+ T cells, thereby contributing to peripheral T cell homeostasis (11‑13).
Long Name
Interleukin 2 Receptor alpha
Alternate Names
CD25, IL-2 R alpha, IL-2Ra, IL2R alpha, IL2RA
Entrez Gene IDs
Gene Symbol
IL2RA
UniProt
Additional CD25/IL-2R alpha Products
Product Specific Notices
This product is provided under an agreement between Life Technologies Corporation and R&D Systems, Inc, and the manufacture, use, sale or import of this product is subject to one or more US patents and corresponding non-US equivalents, owned by Life Technologies Corporation and its affiliates. The purchase of this product conveys to the buyer the non-transferable right to use the purchased amount of the product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). The sale of this product is expressly conditioned on the buyer not using the product or its components (1) in manufacturing; (2) to provide a service, information, or data to an unaffiliated third party for payment; (3) for therapeutic, diagnostic or prophylactic purposes; (4) to resell, sell, or otherwise transfer this product or its components to any third party, or for any other commercial purpose. Life Technologies Corporation will not assert a claim against the buyer of the infringement of the above patents based on the manufacture, use or sale of a commercial product developed in research by the buyer in which this product or its components was employed, provided that neither this product nor any of its components was used in the manufacture of such product. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, Cell Analysis Business Unit, Business Development, 29851 Willow Creek Road, Eugene, OR 97402, Tel: (541) 465-8300. Fax: (541) 335-0354.
For research use only
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