CD25 Rat anti-Mouse, Brilliant Violet 650, Clone: 3C7, BD Optibuild™

Catalog No.	Quantity
BDB740447	50 μg

Catalog No. BDB740447 Supplier BD Biosciences Supplier No. 740447

Description

Rat Monoclonal Antibody

The 3C7 monoclo nal 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 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 th e 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 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 other CD25-specific mAbs, 7D4 and PC61. 3C7 blocks the binding of IL-2 to CD25.

The antibody was conjugated to BD Horizon™ BV650 which is part of the BD Horizon Brilliant™ Violet family of dyes. This dye is a tandem fluorochrome of BD Horizon BV421 with an Ex Max of 405-nm and an acceptor dye with an Em Max at 650-nm. BD Horizon BV650 can be excited by the violet laser and detected in a filter used to detect APC-like dyes (eg, 660/20-nm filter). Due to the excitation and emission characteristics of the acceptor dye, there will be spillover into the APC and Alexa Fluor™ 700 detectors. However, the spillover can be corrected through compensation as with any other dye combination.

Specifications

• Antigen: CD25
• Applications: Flow Cytometry
• Classification: Monoclonal
• Clone: 3C7
• Concentration: 0.2mg/mL
• Conjugate: Brilliant Violet 650
• Description: Interleukin-2 receptor alpha chain; IL-2RA; IL-2Rα; Il2ra; IL-2R p55
• Formulation: Aqueous buffered solution containing ≤0.09% sodium azide.
• Host Species: Rat
• Immunogen: IL-2-dependent BALB/c mouse cell line
• Purification Method: Affinity Purified
• Quantity: 50 μg
• Regulatory Status: RUO
• Primary or Secondary: Primary
• Target Species: Mouse
• Content And Storage: Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze.
• Isotype: IgG2b κ

For Research Use Only