CD25 antibody

Catalog No. ABIN2689118

Product Details anti-CD25 Antibody

Target: CD25 (IL2RA) (Interleukin 2 Receptor, alpha (IL2RA))

Reactivity: Mouse

Host: Rat

Clonality: Monoclonal

Conjugate: This CD25 antibody is un-conjugated

Application: Flow Cytometry (FACS), Immunohistochemistry (IHC), Immunoprecipitation (IP), Blocking Reagent (BR)

Brand: BD Pharmingen™

Characteristics: The PC61 antibody reacts with 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 c 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 (Cat. No. 553068). The PC61 antibody recognizes an epitope of CD25 which is distinct from the IL-2 binding site and from those recognized by mAbs 3C7 (Cat. No. 557364) and 7D4 (Cat. No. 553068). It blocks binding of IL-2 to CD25, presumably by inducing a conformational change in CD25. Use of this product can fall under one or more claims of the following patents licensed to Becton, Dickinson and Company: US Patent Nos. 5,445,939, 5,656,446, 5,843,689, European Patent No. 319,543, Canadian Patent No. 1,296,622, Australian Patent No. 615,880, and Japanese Patent No. 2,769,156. This antibody is routinely tested by flow cytometric analysis. Other applications were tested during antibody development only or reported in the literature.

BD Pharmingen™ Purified Rat Anti-Mouse CD25 - Purified - Clone PC61 - Isotype Rat IgG1, λ - Reactivity Ms - 0.1 mg

Purification: The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography.

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

Clone: PC61

Isotype: IgG1 lambda

Application Details

Application Notes: Optimal working dilution should be determined by the investigator.

Restrictions: For Research Use only

Handling

Concentration: 0.5 mg/mL

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

Preservative: Sodium azide

Precaution of Use: This product contains Sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.

Storage: 4 °C

Storage Comment: Store undiluted at 4°C.

References for anti-CD25 antibody (ABIN2689118)

Read, Malmström, Powrie: "Cytotoxic T lymphocyte-associated antigen 4 plays an essential role in the function of CD25(+)CD4(+) regulatory cells that control intestinal inflammation." in: The Journal of experimental medicine, Vol. 192, Issue 2, pp. 295-302, (2000) (PubMed).

Takahashi, Tagami, Yamazaki, Uede, Shimizu, Sakaguchi, Mak, Sakaguchi: "Immunologic self-tolerance maintained by CD25(+)CD4(+) regulatory T cells constitutively expressing cytotoxic T lymphocyte-associated antigen 4." in: The Journal of experimental medicine, Vol. 192, Issue 2, pp. 303-10, (2000) (PubMed).

Chen, Ma, Young, Alt: "IL-2 receptor alpha chain expression during early B lymphocyte differentiation." in: International immunology, Vol. 6, Issue 8, pp. 1265-8, (1995) (PubMed).

Rolink, Grawunder, Winkler, Karasuyama, Melchers: "IL-2 receptor alpha chain (CD25, TAC) expression defines a crucial stage in pre-B cell development." in: International immunology, Vol. 6, Issue 8, pp. 1257-64, (1995) (PubMed).

Godfrey, Zlotnik: "Control points in early T-cell development." in: Immunology today, Vol. 14, Issue 11, pp. 547-53, (1994) (PubMed).

Taniguchi, Minami: "The IL-2/IL-2 receptor system: a current overview." in: Cell, Vol. 73, Issue 1, pp. 5-8, (1993) (PubMed).

Garni-Wagner, Witte, Tutt, Kuziel, Tucker, Bennett, Kumar: "Natural killer cells in the thymus. Studies in mice with severe combined immune deficiency." in: Journal of immunology (Baltimore, Md. : 1950), Vol. 144, Issue 3, pp. 796-803, (1990) (PubMed).

Pollard, Lipscomb: "Characterization of murine lung dendritic cells: similarities to Langerhans cells and thymic dendritic cells." in: The Journal of experimental medicine, Vol. 172, Issue 1, pp. 159-67, (1990) (PubMed).

Crowley, Inaba, Witmer-Pack, Steinman: "The cell surface of mouse dendritic cells: FACS analyses of dendritic cells from different tissues including thymus." in: Cellular immunology, Vol. 118, Issue 1, pp. 108-25, (1989) (PubMed).

Moreau, Nabholz, Diamantstein, Malek, Shevach, Thèze: "Monoclonal antibodies identify three epitope clusters on the mouse p55 subunit of the interleukin 2 receptor: relationship to the interleukin 2-binding site." in: European journal of immunology, Vol. 17, Issue 7, pp. 929-35, (1987) (PubMed).

Ceredig, Lowenthal, Nabholz, MacDonald: "Expression of interleukin-2 receptors as a differentiation marker on intrathymic stem cells." in: Nature, Vol. 314, Issue 6006, pp. 98-100, (1985) (PubMed).

Lowenthal, Corthésy, Tougne, Lees, MacDonald, Nabholz: "High and low affinity IL 2 receptors: analysis by IL 2 dissociation rate and reactivity with monoclonal anti-receptor antibody PC61." in: Journal of immunology (Baltimore, Md. : 1950), Vol. 135, Issue 6, pp. 3988-94, (1985) (PubMed).

Lowenthal, Zubler, Nabholz, MacDonald: "Similarities between interleukin-2 receptor number and affinity on activated B and T lymphocytes." in: Nature, Vol. 315, Issue 6021, pp. 669-72, (1985) (PubMed).

Target Details for CD25

Target: CD25 (IL2RA) (Interleukin 2 Receptor, alpha (IL2RA))

Alternative Name: CD25 (IL2RA Products)

Synonyms: CD25 antibody, IDDM10 antibody, IL2R antibody, TCGFR antibody, IL2RAC antibody, IL-2RA antibody, Il2r antibody, Ly-43 antibody, interleukin 2 receptor subunit alpha antibody, interleukin-2 receptor subunit alpha-like antibody, interleukin 2 receptor, alpha chain antibody, IL2RA antibody, Il2ra antibody, LOC100222957 antibody

Background: Synonyms: IL-2 Receptor α chain, p55

Pathways: JAK-STAT Signaling, Growth Factor Binding, Activated T Cell Proliferation