BV650 Rat Anti-Mouse CD25

BD Horizon™ BV650 Rat Anti-Mouse CD25

Name: BV650 Rat Anti-Mouse CD25
Brand: BV650 Rat Anti-Mouse CD25
SKU: 564021

Clone PC61 (RUO)

Flow cytometric analysis of CD25 expression on unstimulated and stimulated mouse splenocytes.

Left and Middle Panels: Mouse splenic leucocytes were preincubated with Purified Rat Anti-Mouse CD16/CD32 antibody (Mouse BD Fc Block™) (Cat. No. 553141/553142). The cells were then stained with FITC Rat Anti-Mouse CD4 antibody (Cat. No. 553047/553046/561835) and either BD Horizon™ BV650 Rat IgG1, λ Isotype Control (Cat. No. 563906; Left Panel) or BD Horizon™ BV650 Rat Anti-Mouse CD25 antibody (Cat. No. 564021; Middle Panel). Two-color flow cytometric dot plots show the correlated expression patterns for CD25 (or Ig Isotype control staining) versus CD4 for events with the forward and side light-scatter characteristics of viable splenocytes.

Right Panel: Mouse splenic leucocytes were stimulated for 3 days with concanavalin A. The cells were preincubated with Purified Rat Anti-Mouse CD16/CD32 antibody and then stained with and either BD Horizon™ BV650 Rat IgG1, λ Isotype Control (dashed line histogram) or BD Horizon™ BV650 Rat Anti-Mouse CD25 antibody (solid line histogram). The fluorescence histograms were derived from events with the forward and side light-scatter characteristics of viable lymphoblasts.

Flow cytometric analysis was performed using a BD™ LSR II Flow Cytometer System.

Flow cytometric analysis of CD25 expression on unstimulated and stimulated mouse splenocytes.

Flow cytometric analysis was performed using a BD™ LSR II Flow Cytometer System.

Flow cytometric analysis of CD25 expression on unstimulated and stimulated mouse splenocytes.

Flow cytometric analysis was performed using a BD™ LSR II Flow Cytometer System.

Flow cytometric analysis of CD25 expression on unstimulated and stimulated mouse splenocytes.

Flow cytometric analysis was performed using a BD™ LSR II Flow Cytometer System.

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Product Details

Brand: BD Horizon™

Alternative Name: Interleukin-2 receptor alpha chain; IL-2RA; IL-2Rα; Il2ra; IL-2R p55

Reactivity: Mouse (QC Testing)

Isotype: Rat OFA, also known as Outbred OFA IgG1, λ

Immunogen: IL-2-dependent cytolytic mouse T-cell clone B6.1

Application: Flow cytometry (Routinely Tested)

Concentration: 0.2 mg/ml

RRID: AB_2738547

Storage Buffer: Aqueous buffered solution containing BSA and ≤0.09% sodium azide.

Regulatory Status: RUO

Preparation And Storage

Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze. The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography. The antibody was conjugated with BD Horizon™ BV650 under optimum conditions, and unconjugated antibody and free BD Horizon™ BV650 were removed.

Recommended Assay Procedures

For optimal and reproducible results, BD Horizon Brilliant™ Stain Buffer should be used anytime BD Horizon Brilliant™ dyes are used in a multicolor flow cytometry panel. Fluorescent dye interactions may cause staining artifacts which may affect data interpretation. The BD Horizon Brilliant Stain Buffer was designed to minimize these interactions. When BD Horizon Brilliant Stain Buffer is used in in the multicolor panel, it should also be used in the corresponding compensation controls for all dyes to achieve the most accurate compensation. For the most accurate compensation, compensation controls created with either cells or beads should be exposed to BD Horizon Brilliant Stain Buffer for the same length of time as the corresponding multicolor panel. More information can be found in the Technical Data Sheet of the BD Horizon Brilliant Stain Buffer (Cat. No. 563794/566349) or the BD Horizon Brilliant Stain Buffer Plus (Cat. No. 566385).

Product Notices

Since applications vary, each investigator should titrate the reagent to obtain optimal results.
An isotype control should be used at the same concentration as the antibody of interest.
Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.
Source of all serum proteins is from USDA inspected abattoirs located in the United States.
Alexa Fluor® is a registered trademark of Molecular Probes, Inc., Eugene, OR.
For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at www.bdbiosciences.com/colors.
BD Horizon Brilliant Violet 650 is covered by one or more of the following US patents: 8,110,673; 8,158,444; 8,227,187; 8,455,613; 8,575,303; 8,354,239.
BD Horizon Brilliant Stain Buffer is covered by one or more of the following US patents: 8,110,673; 8,158,444; 8,575,303; 8,354,239.
Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.

Companion Products

Purified Rat Anti-Mouse CD16/CD32 (Mouse BD Fc Block™) RUO

Size 0.1 mg Cat No. 553141

Purified Rat Anti-Mouse CD16/CD32 (Mouse BD Fc Block™) RUO

Size 0.5 mg Cat No. 553142

Stain Buffer (FBS) RUO

Size 500 ML Cat No. 554656

Stain Buffer (BSA) RUO

Size 500 ML Cat No. 554657

Brilliant Stain Buffer RUO

Size 1000 Tests Cat No. 566349

Brilliant Stain Buffer RUO

Size 100 Tests Cat No. 563794

View Details

564021 Rev. 2

Antibody Details

PC61

The PC61 monoclonal antibody specifically binds to CD25, the low-affinity IL-2 Receptor α chain (IL-2Rα, p55) expressed on activated T and B lymphocytes from all mouse strains tested. IL-2Rα by itself is not a signaling receptor. However, it can combine with IL-2 Receptor β (CD122) and γc (CD132) chains to form high-affinity, signaling receptor complexes for IL-2. Resting T and B lymphocytes and resting and activated NK cells do not express IL-2Rα. CD25 is transiently expressed at a low level during normal B-cell development in the bone marrow on the CD45R/B220low TdT- sIg- Pre-B/Pre-B-II and CD45R/B220low TdT- sIgM+ sIgD- immature B stages, but not on the CD45R/B220low TdT+ sIg- Pro-B/Pre-B-I stage nor on CD45R/B220high TdT- sIgM+ sIgD+ mature B cells. It is expressed at a higher level during a very early stage of T-cell development in fetal and adult thymus. Peripheral CD25+CD4+ lymphocytes called regulatory T (Treg) cells are involved in the maintenance of self-tolerance. It has also been reported that dendritic cells express CD25, recognized by mAb 7D4. The PC61 antibody recognizes an epitope of CD25 which is distinct from the IL-2 binding site and from those recognized by mAbs 3C7 and 7D4. It blocks binding of IL-2 to CD25, presumably by inducing a conformational change in CD25.

564021 Rev. 2

Format Details

BV650

The BD Horizon Brilliant Violet™ 650 (BV650) Dye is part of the BD Horizon Brilliant Violet™ family of dyes. This tandem fluorochrome is comprised of a BV421 donor with an excitation maximum (Ex Max) of 406-nm and an acceptor dye with an emission maximum (Em Max) at 649-nm. BV650, driven by BD innovation, is designed to be excited by the violet laser (405-nm) and detected using an optical filter centered near 650-nm (e.g., a 660/20-nm bandpass filter). The acceptor dye can be excited by the Red (628–640-nm) laser resulting in cross-laser excitation and fluorescence spillover. Please ensure that your instrument’s configurations (lasers and optical filters) are appropriate for this dye.

Format: BV650

Excitation Max: 406 nm

Emission Max: 649 nm

564021 Rev.2

Citations & References

View product citations for antibody "564021" on CiteAb

Development References (9)

Ceredig R, Lowenthal JW, Nabholz M, MacDonald HR. Expression of interleukin-2 receptors as a differentiation marker on intrathymic stem cells. Nature. 1985; 314(6006):98-100. (Clone-specific: Blocking, Immunohistochemistry). View Reference
Chen J, Ma A, Young F, Alt FW. IL-2 receptor alpha chain expression during early B lymphocyte differentiation. Int Immunol. 1994; 6(8):1265-1268. (Biology). View Reference
Ernst DN, Weigle WO, McQuitty DN, Rothermel AL, Hobbs MV. Stimulation of murine T cell subsets with anti-CD3 antibody. Age-related defects in the expression of early activation molecules. J Immunol. 1989; 142(5):1413-1421. (Clone-specific: Flow cytometry). View Reference
Garni-Wagner BA, Witte PL, Tutt MM, et al. Natural killer cells in the thymus. Studies in mice with severe combined immune deficiency. J Immunol. 1990; 144(3):796-803. (Biology). View Reference
Godfrey DI, Zlotnik A. Control points in early T-cell development. Immunol Today. 1993; 14(11):547-553. (Biology). View Reference
Lowenthal JW, Corthésy P, Tougne C, Lees R, MacDonald HR, Nabholz M. High and low affinity IL 2 receptors: analysis by IL 2 dissociation rate and reactivity with monoclonal anti-receptor antibody PC61. J Immunol. 1985; 135(6):3988-3994. (Immunogen: Bioassay, Blocking, Functional assay, Inhibition, Radioimmunoassay). View Reference
Lowenthal JW, Zubler RH, Nabholz M, MacDonald HR. Similarities between interleukin-2 receptor number and affinity on activated B and T lymphocytes. Nature. 1985; 315(6021):669-672. (Clone-specific: Blocking, Immunoprecipitation, Radioimmunoassay). View Reference
Moreau JL, Nabholz M, Diamantstein T, Malek T, Shevach E, Theze J. Monoclonal antibodies identify three epitope clusters on the mouse p55 subunit of the interleukin 2 receptor: relationship to the interleukin 2-binding site. Eur J Immunol. 1987; 17(7):929-935. (Clone-specific: Blocking). View Reference
Read S, Malmstrom V, Powrie F. Cytotoxic T lymphocyte-associated antigen 4 plays an essential role in the function of CD25(+)CD4(+) regulatory cells that control intestinal inflammation. J Exp Med. 2000; 192(2):295-302. (Biology). View Reference

View All (9)

564021 Rev. 2

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For Research Use Only. Not for use in diagnostic or therapeutic procedures.