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You are here:Home » Antibodies » Antibodies-CD Markers » Anti -IL2RA (Interleukin-2 Receptor Subunit alpha, IL-2 Receptor Subunit alpha, IL-2-RA, IL-2R Subunit alpha, IL2-RA, TAC Antigen, p55, CD25) (PE)

Anti -IL2RA (Interleukin-2 Receptor Subunit alpha, IL-2 Receptor Subunit alpha, IL-2-RA,
IL-2R Subunit alpha, IL2-RA, TAC Antigen, p55, CD25) (PE)


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Clone Host Grade Applications
Polyclonal Sheep Affinity Purified FC
IL-2 receptor alpha (IL-2 RA), also known as CD25, is a 55kD type I membrane glycoprotein that belongs to a family of cytokine receptors that utilize the common gamma chain subunit (Gc). IL-2 RA is primarily expressed on activated T cells and on regulatory T cells (Treg). IL-2 RABBIT (CD122) and Gc (IL-2 RG/CD132) dimerize to form a constitutively expressed intermediate affinity IL-2 receptor. By itself, IL-2 RA binds IL-2 with low affinity. It associates with IL-2 RB and GC to generate a ternary high affinity IL-2 receptor complex. A soluble form of IL-2 RA can be generated by proteolytic cleavage of the cell surface receptor, rendering the T cell unresponsive to IL-2. Increased serum levels of soluble IL-2 RA are found in some cancers and immune disorders. IL-2 RA is required for activation-induced cell death (AICD) of naive T cells, a mechanism responsible for deleting autoreactive T cell clones. IL-2 RA is also required for the development of CD4+CD25+ Treg which suppress autoreactive CD4+ T cells, thereby contributing to peripheral T cell homeostasis. Within the ECD, canine IL-2 RA shares 49%-60% aa sequence identity with human, mouse, and rat IL-2 RA.
Catalog #I7663-31Z1
ApplicationsSuitable for use in Flow Cytometry. Other applications not tested.
Recommended DilutionOptimal dilutions to be determined by the researcher.
Excitation 488nm
Emission 565-605nm
Storage and StabilityMay be stored at 4°C before opening. DO NOT FREEZE! Stable at 4°C as an undiluted liquid. Dilute only prior to immediate use. Stable for 12 months at 4°C. Freezing R-Phycoerythrin (PE) conjugates will result in a substantial loss of activity. PE conjugates are sensitive to light.
Clone TypePolyclonal
ConcentrationNot determined
FormSupplied as a liquid in saline, 0.5% BSA, 0.1% sodium azide. Labeled with R-Phycoerythrin (PE).
PurityPurified by immunoaffinity chromatography.
ImmunogenRecombinant corresponding to aa1-238 from canine IL-2 RA expressed in NSO cell line.
SpecificityRecognizes canine IL-2 RA.
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.

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