Date published: 2026-5-19

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IL-2Rα Antibody (BC96): sc-19628

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Datasheets
  • IL-2Rα Antibody (BC96) is a mouse monoclonal IgG1 κ, cited in 1 publications, provided at 200 µg/ml
  • raised against IL-2Rα of human origin
  • recommended for detection of IL-2Rα of human origin by FCM
  • available conjugated to either phycoerythrin, FITC, Alexa Fluor® 488 or Alexa Fluor® 647 for IF, IHC(P) and FCM
  • m-IgG Fc BP-HRP and m-IgGκ BP-HRP are the preferred secondary detection reagents for IL-2Rα Antibody (BC96). These reagents are now offered in bundles with IL-2Rα Antibody (BC96) (see ordering information below).
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IL-2Rα Antibody (BC96) is a mouse monoclonal IgG1 antibody that detects IL-2Rα in human samples through flow cytometry (FCM). IL-2Rα, also known as CD25, plays a crucial role in the immune system by serving as a high-affinity receptor for interleukin-2 (IL-2), a key cytokine involved in T cell proliferation and differentiation. IL-2Rα expression on T cells is essential for their activation and survival, making IL-2Rα a critical component in immune responses, particularly in the context of T cell-mediated immunity and tolerance. Notably, IL-2Rα is predominantly expressed on activated T cells, regulatory T cells, and certain hematopoietic cells, which underscores IL-2Rα′s importance in modulating immune responses and maintaining homeostasis. IL-2Rα interaction with IL-2 not only promotes T cell growth but also influences the development of various immune cell types, thereby impacting overall immune function. Given IL-2Rα′s pivotal role in immune regulation, IL-2Rα serves as a significant marker for studying immune disorders, cancer immunotherapy, and the mechanisms of T cell activation.

For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.

Alexa Fluor® is a trademark of Molecular Probes Inc., OR., USA

LI-COR® and Odyssey® are registered trademarks of LI-COR Biosciences

IL-2Rα Antibody (BC96) References:

  1. Modulation of IL-2Rα with daclizumab for treatment of multiple sclerosis.  |  Wiendl, H. and Gross, CC. 2013. Nat Rev Neurol. 9: 394-404. PMID: 23732529
  2. IL-2Rα mediates temporal regulation of IL-2 signaling and enhances immunotherapy.  |  Su, EW., et al. 2015. Sci Transl Med. 7: 311ra170. PMID: 26511507
  3. Tfr cells lack IL-2Rα but express decoy IL-1R2 and IL-1Ra and suppress the IL-1-dependent activation of Tfh cells.  |  Ritvo, PG., et al. 2017. Sci Immunol. 2: PMID: 28887367
  4. The activation of PPARγ enhances Treg responses through up-regulating CD36/CPT1-mediated fatty acid oxidation and subsequent N-glycan branching of TβRII/IL-2Rα.  |  Miao, Y., et al. 2022. Cell Commun Signal. 20: 48. PMID: 35392915
  5. IL-2/IL-2R signaling and IL-2Rα-targeted therapy in anaplastic large cell lymphoma.  |  Liang, HC. 2022. Pathologie (Heidelb). 43: 25-30. PMID: 36094651
  6. Proximity-enabled covalent binding of IL-2 to IL-2Rα selectively activates regulatory T cells and suppresses autoimmunity.  |  Zhang, B., et al. 2023. Signal Transduct Target Ther. 8: 28. PMID: 36690610
  7. IL-2Rα-biased agonist enhances antitumor immunity by invigorating tumor-infiltrating CD25+CD8+ T cells.  |  Wu, W., et al. 2023. Nat Cancer. 4: 1309-1325. PMID: 37550516
  8. Amniotic MSC affect CD8 naive polarization toward SLEC/MPEC subsets by down-modulating IL-12Rβ1 and IL-2Rα signaling pathways.  |  Papait, A., et al. 2023. iScience. 26: 108483. PMID: 38077154
  9. Cantharidin overcomes IL-2Rα signaling-mediated vorinostat resistance in cutaneous T-cell lymphoma through reactive oxygen species.  |  Zhu, M., et al. 2024. J Immunother Cancer. 12: PMID: 39004437
  10. A PD-1-targeted, receptor-masked IL-2 immunocytokine that engages IL-2Rα strengthens T cell-mediated anti-tumor therapies.  |  Wu, J., et al. 2024. Cell Rep Med. 5: 101747. PMID: 39326410

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

IL-2Rα Antibody (BC96)

sc-19628
200 µg/ml
$322.00

IL-2Rα Antibody (BC96): m-IgG Fc BP-HRP Bundle

sc-536624
200 µg Ab; 10 µg BP
$361.00

IL-2Rα Antibody (BC96): m-IgGκ BP-HRP Bundle

sc-533781
200 µg Ab; 40 µg BP
$361.00

IL-2Rα Antibody (BC96) Alexa Fluor® 488

sc-19628 AF488
200 µg/ml
$364.00

IL-2Rα Antibody (BC96) Alexa Fluor® 647

sc-19628 AF647
200 µg/ml
$364.00

IL-2Rα Antibody (BC96) FITC

sc-19628 FITC
200 µg/ml
$336.00

IL-2Rα Antibody (BC96) PE

sc-19628 PE
200 µg/ml
$349.00

Does this antibody block IL2 binding or interfere with IL2 signaling?

Asked by: Labrat2
Thank you for your question. It would be helpful if you could call us directly at 800-457-3801 ext 1, allowing for a more interactive discussion of this and other related questions.
Answered by: Blake J
Date published: 2021-08-19

Hi, I have bought this antibody CD25 sc-19628 and from the data sheet provided I don't seem to get where your dilutions recommendation. Could you kindly give a directive or guidance on this please.

Asked by: Asman
Thank you for your question. This mouse monoclonal antibody, IL-2Rα (BC96): sc-19628, is recommended for detection of IL-2Rα of human origin by flow cytometry at a concentration of 1 μg per 1 million cells. This information is shown under the "Applications" section of our product data sheet. A link to our recommended protocol is provided below as an additional reference. https://www.scbt.com/scbt/resources/protocols/flow-cytometry
Answered by: Technical Support
Date published: 2017-08-23

How can IL-2Rα (BC96): sc-19628 mouse monoclonal antibody be used for double or triple staining, if the other primary antibodies are also raised in mouse?

Asked by: Germaine
In this case, we recommend using a directly conjugated mouse monoclonal primary antibody. This antibody is available conjugated to phycoerythrin (sc-19628 PE) or fluoroscein (sc-19628 FITC).
Answered by: Technical Support
Date published: 2017-02-27

Can i use this clone for blocking IL-2r?

Asked by: mariana
  • y_2026, m_5, d_18, h_13CST
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Rated 4 out of 5 by from Produced clear FCM data for PMAProduced clear FCM data for PMA-stimulated human peripheral blood leukocytes stained with IL-2R alpha FITC and CD4 PE. -SCBT QC
Date published: 2013-11-28
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IL-2Rα Antibody (BC96) is rated 4.0 out of 5 by 1.
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