- PC61 (See other available formats)
- Other Names
- IL-2Rα, Ly-43, p55, Tac
- Rat IgG1, λ
- Ave. Rating
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- Product Citations
CD25 is a 55 kD glycoprotein also known as the low affinity IL-2Rα, Ly-43, p55, or Tac. It is expressed on activated T and B cells, thymocyte subsets, pre-B cells, and T regulatory cells. In association with CD122 (IL-2Rβ) and CD132 (common γ chain), CD25 forms the high affinity signaling IL-2 receptor.Product Details
- Antibody Type
- Host Species
- IL-2-dependent cytolytic mouse T-cell clone B6.1
- 0.2 µm filtered in phosphate-buffered solution, pH 7.2, containing no preservative. Endotoxin level is <0.01 EU/µg of the protein (<0.001 ng/µg of the protein) as determined by the LAL test.
- The Ultra-LEAF™ (Low Endotoxin, Azide-Free) antibody was purified by affinity chromatography.
- The antibody is bottled at the concentration indicated on the vial, typically between 2 mg/mL and 3 mg/mL. Older lots may have also been bottled at 1 mg/mL. Please contact technical support for concentration and total µg amount, or use our Lookup tool if you have a lot number.
- Storage & Handling
- The antibody solution should be stored undiluted between 2°C and 8°C. This Ultra-LEAF™ solution contains no preservative; handle under aseptic conditions.
FC - Quality tested
IHC-F, IP, Block, Depletion - Reported in the literature, not verified in house
- Recommended Usage
Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. For flow cytometric staining, the suggested use of this reagent is ≤ 1.0 µg per million cells in 100 µl volume or 100 µl of whole blood. It is recommended that the reagent be titrated for optimal performance for each application.
- Application Notes
Additional reported applications (for the relevant formats) include: immunoprecipitation1,2, in vitro blocking of IL-2 binding to low- and high-affinity receptors1-4, growth inhibition of IL-2-dependent T-cell lines1-4, in vivo depletion of CD25+CD4+ Treg cells5-8,10, and immunohistochemical staining of acetone-fixed frozen sections2. PC61 antibody recognizes a different epitope than 3C7 antibody (Cat. No. 101902). For in vivo studies or highly sensitive assays, we recommend Ultra-LEAF™ purified antibody (Cat. No. 102040) with endotoxin < 0.01 EU/µg, Azide-Free, 0.2 µm filtered.
(PubMed link indicates BioLegend citation)
- Lowenthal JW, et al. 1985. Nature 315:669. (IP, Block)
- Ceredig R, et al. 1985. Nature 314:98. (IP, IHC, Block)
- Lowenthal JW, et al. 1985. J. Immunol. 135:3988. (Block)
- Moreau JL, et al. 1987. Eur. J. Immunol. 17:929. (Block)
- Takahashi T, et al. 2000. J. Exp. Med. 192:303. (Deplete)
- Onizuka S, et al. 1999. Cancer Res. 59:3128. (Deplete)
- Lei TC, et al. 2005. Blood 105:4865. (Deplete)
- Pasare C, et al. 2004. Immunity 21:733. (Deplete)
- León-Ponte M, et al. 2007. Blood 109:3139.
- Cao OW, et al. 2007. Blood doi:10.1182/blood-2007-02-073304. (Deplete)
- Benson MJ, et al. 2007. J. Exp. Med. doi:10.1084/jem.20070719.
- Liu F, et al. 2011. Arch Toxicol. 85:1383. PubMed
- Anguela XM, et al. 2013. Diabetes. 62:551. PubMed
AB_2813926 (BioLegend Cat. No. 102061)
AB_2813924 (BioLegend Cat. No. 102059)
AB_2813925 (BioLegend Cat. No. 102060)
AB_2813922 (BioLegend Cat. No. 102057)
AB_11150394 (BioLegend Cat. No. 102040)
AB_2813923 (BioLegend Cat. No. 102058)
- Forms high affinity IL-2R with IL-2Rβ (CD122) and IL-2Rγ (CD132), 55 kD
Activated T cells and B cells, thymocyte subset, pre-B cells, T regulatory cells
- IL-2 receptor
- Cell Type
- B cells, T cells, Thymocytes, Tregs
- Biology Area
- Molecular Family
- CD Molecules, Cytokine/Chemokine Receptors
- Antigen References
- Taniguchi T, et al. 1993. Cell 73:5-8.
- Waldmann TA. 1991. J Biol Chem. 266:2681-4.
- Read S, et al. 2000. J Exp Med. 192:295-302.
- Lowenthal JW, et al. 1985. J Immunol. 135:3988-94.
- Gene ID
- 16184 View all products for this Gene ID
- View information about CD25 on UniProt.org
- Does BioLegend test each Ultra-LEAF™ antibody by functional assay?
No, BioLegend does not test Ultra-LEAF™ antibodies by functional assays unless otherwise indicated. Due to the possible complexities and variations of uses of biofunctional antibodies in different assays and because of the large product portfolio, BioLegend does not currently perform functional assays as a routine QC for the antibodies. However, we do provide references in which the antibodies were used for functional assays and we do perform QC to verify the specificity and quality of the antibody based on our strict specification criteria.
- Do you guarantee that your antibodies are totally pathogen free?
BioLegend does not test for pathogens in-house aside from the GoInVivo™ product line. However, upon request, this can be tested on a custom basis with an outside, independent laboratory.
- Does BioLegend test each Ultra-LEAF™ antibody for potential pathogens?
No, BioLegend does not test for pathogens in-house unless otherwise indicated. However, we can recommend an outside vendor to perform this testing as needed.
- Have you tested this Ultra-LEAF™ antibody for in vivo or in vitro applications?
We don't test our antibodies for in vivo or in vitro applications unless otherwise indicated. Depending on the product, the TDS may describe literature supporting usage of a particular product for bioassay. It may be best to further consult the literature to find clone specific information.
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