|Tested species reactivity||Human, Mouse|
|Host / Isotype||Rabbit / IgG|
|Immunogen||A synthetic phosphopeptide derived from human IL-2Ralpha/CD25 around the phosphorylation site of Ser268 (R-K-SP-R-R)|
|Purification||Antigen affinity chromatography|
|Storage buffer||Dulbecco's PBS, pH 7.4, with 50% glycerol, 150mM NaCl|
|Contains||0.02% sodium azide|
|Tested Applications||Dilution *|
|Western Blot (WB)||1:500-1:1000|
* Suggested working dilutions are given as a guide only. It is recommended that the user titrate the product for use in their own experiment using appropriate negative and positive controls.
CD25 (IL2Ralpha, Tac) is a ligand-binding alpha subunit of interleukin 2 receptor (IL2R). Together with beta and gamma subunit CD25 constitues the high affinity IL2R, whereas CD25 alone serves as the low affinity IL2R. CD25 expression rapidly increases upon T cell activation. The 55 kDa CD25 molecule is enzymatically cleaved and shed from the cell surface as a soluble 45 kDa s-Tac, whose concentration in serum can be used as a marker of T cell activation. Expression of CD25 indicates the neoplastic phenotype of mast cells. Humanized anti CD25 antibodies represent a useful tool to reduce the incidence of allograft rejection as well as the severity of graft versus host reaction, and radioimmunoconjugates of anti-CD25 antibodies can be used against CD25 expressing lymphomas.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.