CD25 Mouse anti-Human, Brilliant Violet 605, Clone: 2A3, BD

Mouse Monoclonal Antibody

Catalog Number	Mfr. No.	Quantity
BDB562661	BD Biosciences 562661	25 Tests
BDB562660	BD Biosciences 562660	100 Tests

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.

This antibody is conjugated to BD Horizon BV605 which is part of the BD Horizon Brilliant™ Violet family of dyes. With an Ex Max of 407-nm and Em Max of 602-nm, BD Horizon BV605 can be excited by a violet laser and detected with a standard 610/20-nm filter set. BD Horizon BV605 is a tandem fluorochrome of BD Horizon BV421 and an acceptor dye with an Em max at 605-nm. Due to the excitation of the acceptor dye by the green (532 nm) and yellow-green (561 nm) lasers, there will be significant spillover into the PE and BD Horizon PE-CF594 detectors off the green or yellow-green lasers. BD Horizon BV605 conjugates are very bright, often exhibiting brightness equivalent to PE conjugates and can be used as a third color off of the violet laser.

Specifications

• Antigen: CD25
• Applications: Flow Cytometry
• Conjugate: Brilliant Violet 605
• Regulatory Status: RUO
• Formulation: Aqueous buffered solution containing BSA and ≤0.09% sodium azide.
• Isotype: IgG1 κ
• Purification Method: Affinity Purified
• Description: IL-2R; IL2RA; IL-2Rα; TCGFR; TAC antigen; p55

• Clone: 2A3
• Classification: Monoclonal
• Host Species: Mouse
• Target Species: Human
• Immunogen: Human PHA-activated T Cells
• Primary or Secondary: Primary
• Content And Storage: Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze.

For Research Use Only.