产品信息
荧光素标记
PE
抗原名称
CD25 (IL-2 Receptor a)
宿主
Rat LEW, also known as Lewis IgG2b, κ
免疫原
IL-2-dependent BALB/c mouse cell line
简单描述
The 3C7 monoclonal antibody specifically binds to CD25, the low affinity IL-2 Receptor (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 as well as 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 during the CD45R/B220low TdT- sIg- Pre-B/Pre-B-II and CD45R/B220low TdT- sIgM+ sIgD- immature B stages, but not during the CD45R/B220low TdT+ sIg- Pro-B/Pre B-I stage nor on CD45R/B220high TdTsIgM+ 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+ T 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, another CD25-specific antibody). The 3C7 antibody recognizes an epitope of CD25 which is distinct from those recognized by the other CD25-specific mAbs, 7D4 and PC61. 3C7 blocks the binding of IL-2 to CD25.
商品描述
3C7
The 3C7 monoclonal antibody specifically binds to CD25, the low affinity IL-2 Receptor (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 as well as 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 during the CD45R/B220low TdT- sIg- Pre-B/Pre-B-II and CD45R/B220low TdT- sIgM+ sIgD- immature B stages, but not during the CD45R/B220low TdT+ sIg- Pro-B/Pre B-I stage nor on CD45R/B220high TdTsIgM+ 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+ T 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, another CD25-specific antibody). The 3C7 antibody recognizes an epitope of CD25 which is distinct from those recognized by the other CD25-specific mAbs, 7D4 and PC61. 3C7 blocks the binding of IL-2 to CD25.
同种型
Rat LEW, also known as Lewis IgG2b, κ
克隆号
克隆 3C7 (RUO)
浓度
0.2 mg/ml
产品详情
PE
R-Phycoerythrin (PE), is part of the BD family of Phycobiliprotein dyes. This fluorochrome is a multimeric fluorescent phycobiliprotein with excitation maximum (Ex Max) of 496 nm and 566 nm and an emission maximum (Em Max) at 576 nm. PE is designed to be excited by the Blue (488 nm), Green (532 nm) and Yellow-Green (561 nm) lasers and detected using an optical filter centered near 575 nm (e.g., a 575/26-nm bandpass filter). As PE is excited by multiple lasers, this can result in cross-laser excitation and fluorescence spillover on instruments with various combinations of Blue, Green, and Yellow-Green lasers. Please ensure that your instrument’s configurations (lasers and optical filters) are appropriate for this dye.
PE
Yellow-Green 488 nm, 532 nm, 561 nm
496 nm, 566 nm
576 nm
应用
实验应用
Flow cytometry (Routinely Tested)
反应种属
Mouse (QC Testing)
目标/特异性
CD25 (IL-2 Receptor α)
背景
别名
Interleukin-2 receptor alpha chain; IL-2RA; IL-2Rα; Il2ra; IL-2R p55
制备和贮存
存储溶液
Aqueous buffered solution containing ≤0.09% sodium azide.
保存方式
Aqueous buffered solution containing ≤0.09% sodium azide.
文献
文献
研发参考(12)
1. 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).
2. Crowley M, Inaba K, Witmer-Pack M, Steinman RM. The cell surface of mouse dendritic cells: FACS analyses of dendritic cells from different tissues including thymus. Cell Immunol. 1989; 118(1):108-125. (Biology).
3. 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).
4. Habu S, Okumura K, Diamantstein T, Shevach EM. Expression of interleukin 2 receptor on murine fetal thymocytes. Eur J Immunol. 1985; 15(5):456-460. (Biology).
5. Malek TR, Robb RJ, Shevach EM. Identification and initial characterization of a rat monoclonal antibody reactive with the murine interleukin 2 receptor-ligand complex. Proc Natl Acad Sci U S A. 1983; 80(18):5694-5698. (Biology).
6. 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. (Biology).
7. Ortega G, Robb RJ, Shevach EM, Malek TR. The murine IL 2 receptor. I. Monoclonal antibodies that define distinct functional epitopes on activated T cells and react with activated B cells. J Immunol. 1984; 133(4):1970-1975. (Immunogen: Blocking).
8. Pollard AM, Lipscomb MF. Characterization of murine lung dendritic cells: similarities to Langerhans cells and thymic dendritic cells. J Exp Med. 1990; 172(1):159-167. (Biology).
9. 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).
10. Rolink A, Grawunder U, Winkler TH, Karasuyama H, Melchers F. IL-2 receptor alpha chain (CD25, TAC) expression defines a crucial stage in pre-B cell development. Int Immunol. 1994; 6(8):1257-1264. (Biology).
11. Takahashi T, Tagami T, Yamazaki S, et al. Immunologic self-tolerance maintained by CD25(+)CD4(+) regulatory T cells constitutively expressing cytotoxic T lymphocyte-associated antigen 4. J Exp Med. 2000; 192(2):303-309. (Biology).
12. Taniguchi T, Minami Y. The IL-2/IL-2 receptor system: a current overview. Cell. 1993; 73(1):5-8. (Biology).
数据库链接
Entrez-Gene ID
16184
参考图片
Flow cytometric analysis of CD25 expression on stimulated mouse splenocytes. Mouse splenic leucocytes were stimulated with concanavalin A for 3 days. The cells were then stained with either PE Rat IgG2b, κ Isotype Control (dashed line histogram; Cat. No. 553989) or PE Rat Anti-Mouse CD25 antibody (solid line histogram; Cat. No. 553075). DAPI (4',6-Diamidino-2-Phenylindole, Dihydrochloride) Solution (Cat. No. 564907) was added to cells right before analysis. The fluorescence histograms were derived from gated events with the forward and side light-scatter characteristics of viable (DAPI-negative) lymphoblasts. Flow cytometry and data analysis were performed using a BD X-20 LSRFortessa™ Cell Analyzer System and FlowJo™ software. Data shown on this Technical Data Sheet are not lot specific.
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