Biolegend, 101925, Ultra-LEAF™ Purified anti-mouse CD25 Antibody, 100μg

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 subset, 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.
100μg
Verified Reactivity: Mouse
Antibody Type: Monoclonal
Host Species: Rat
Immunogen: IL-2-dependent BALB/c mouse helper T-cell clone HT-2
Formulation: 0.2 µm filtered in phosphate-buffered solution, pH 7.2, containing no preservative.
Endotoxin Level: Less than 0.01 EU/µg of the protein (< 0.001 ng/µg of the protein) as determined by the LAL test.
Preparation: The Ultra-LEAF™ (Low Endotoxin, Azide-Free) antibody was purified by affinity chromatography.
Concentration: 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. To obtain lot-specific concentration and expiration, please enter the lot number in our Certificate of Analysis online tool.
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.
Application: FC - Quality testedCyTOF® - VerifiedIHC-F, Block - 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. It is recommended that the reagent be titrated for optimal performance for each application.
Application Notes: Additional reported applications (for the relevant formats) include: in vitro blocking of IL-2 binding to low- and high-affinity receptors1,2, and immunohistochemical staining of acetone-fixed frozen sections. 3C7 antibody recognizes different epitope of PC61 antibody (Cat. No. 102002). The Ultra-LEAF™Purified antibody (Endotoxin < 0.01 EU/µg, Azide-Free, 0.2 µm filtered) is recommended for functional assays (Cat. No. 101925 and 101926).
Application References(PubMed link indicates BioLegend citation): Ortega RG, et al. 1984. J. Immunol. 133:1970. (Block) Moreau JL, et al. 1987. Eur. J. Immunol. 17:929. (Block)
RRID: AB_2832283 (BioLegend Cat. No. 101925) AB_2832284 (BioLegend Cat. No. 101926)
Structure: Forms high affinity IL-2R with IL-2Rβ (CD122) and IL-2Rγ (CD132), 55 kD
Distribution: Activated T cells and B cells, thymocyte subset, pre-B cells, T regulatory cells
Function: IL-2 receptor, signal transduction
Ligand/Receptor: IL-2
Cell Type: B cells, T cells, Tregs
Biology Area: Immunology
Molecular Family: CD Molecules, Cytokine/Chemokine Receptors
Antigen References: 1. Taniguchi T, et al. 1993. Cell 73:5. 2. Waldmann TA. 1991. J. Biol. Chem. 266:2681. 3. Read S, et al. 2000. J. Exp. Med. 192:295. 4. Lowenthal JW, et al. 1985. J. Immunol. 135:3988.
Gene ID: 16184
UniProt: View information about CD25 on UniProt.org
Clone: 3C7
Regulatory Status: RUO
Other Names: IL-2Rα, Ly-43, p55, Tac
Isotype: Rat IgG2b, κ
Q: Do you guarantee that your antibodies are totally pathogen free?
A: 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.
Q: Does BioLegend test each Ultra-LEAF™ antibody by functional assay?
A: 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.
Q: Does BioLegend test each Ultra-LEAF™ antibody for potential pathogens?
A: 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.
Q: Have you tested this Ultra-LEAF™ antibody for in vivo or in vitro applications?
A: 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.