CD25 Rat anti-Mouse, APC-Cy7, Clone: PC61, BD

Rat Monoclonal Antibody

Catalog Number	Mfr. No.	Quantity
BDB561038	BD Biosciences 561038	25 μg
BDB557658	BD Biosciences 557658	0.1 mg

Description

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 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.

Specifications

• Antigen: CD25
• Concentration: 0.2mg/mL
• Classification: Monoclonal
• Host Species: Rat
• Target Species: Mouse
• Immunogen: IL-2-dependent cytolytic mouse T-cell clone B6.1
• Primary or Secondary: Primary
• Content And Storage: Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze.

• Clone: PC61
• Applications: Flow Cytometry
• Conjugate: APC-Cyanine7
• Regulatory Status: RUO
• Formulation: Aqueous buffered solution containing ≤0.09% sodium azide.
• Isotype: IgG1 λ
• Purification Method: Affinity Purified
• Description: Interleukin-2 receptor alpha chain; IL-2RA; IL-2Rα; Il2ra; IL-2R p55

For Research Use Only.