CD25 Mouse anti-Human, Brilliant Violet 650, Clone: 2A3, BD Optibuild™

Mouse Monoclonal Antibody

Supplier:  BD Biosciences 740634

Catalog No. BDB740634

Description

The 2A3 monoclonal antibody specifically binds to human CD25, the low-affinity alpha subunit of the Interleukin-2 Receptor (IL- 2Rα). CD25 associates with CD122 (IL-2Rβ chain) and CD132 (common γchain or γc) to form the high-affinity signal-transducing IL -2R complex. CD25 is expressed by subsets of thymocytes and peripheral blood lymphocytes including CD4+CD25+ regulatory T cells and memory T cells. CD25 antigen density increases on activated T cells including phytohemagglutinin (PHA)-, concanavalin A (Con A)-, and CD3-activated T lymphocytes. High levels of CD25 can be expressed by T lymphocytes from mixed lymphocyte cultures and by human T-lymphocyte leukemia virus (HTLV)-infected T-lymphocyte leukemia lines, for example, HUT-102. CD25 can also be expressed by activated B cells and macrophages. Recombinant IL-2 blocks the binding of the 2A3 antibody to PHA-activated T lymphocytes.

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
• Classification: Monoclonal
• Concentration: 0.2mg/mL
• Description: IL-2R; IL2RA; IL-2Rα; TCGFR; TAC antigen; p55
• Host Species: Mouse
• Purification Method: Affinity Purified
• Regulatory Status: RUO
• Target Species: Human
• Isotype: IgG1 κ

• Applications: Flow Cytometry
• Clone: 2A3
• Conjugate: Brilliant Violet 650
• Formulation: Aqueous buffered solution containing ≤0.09% sodium azide.
• Immunogen: Human Phytohemagglutinin-activated T Cells
• Quantity: 50 μg
• Primary or Secondary: Primary
• Content And Storage: Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze.

Safety and Handling

WARNING: Reproductive Harm - www.P65Warnings.ca.gov

For Research Use Only