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CD4 Mouse anti-Human, Brilliant Violet 650, Clone: RPA-T4, BD Optibuild™
Mouse Monoclonal Antibody
Supplier: BD Biosciences 740563
Description
The RPA-T4 monoclonal antibody specifically binds to CD4, a 59 kDa single-chain transmembrane glycoprotein that is expressed on T-helper/inducer cell populations. CD4 is also expressed on thymocyte subsets and at lower levels on monocytes and macrophages. CD4 functions as a co-receptor in MHC class II-restricted antigen-induced T cell activation and as a receptor for human immunodeficiency viruses (HIV). This antibody binds to the D1 domain (CDR1 and CDR3 epitopes) of the CD4 antigen and reacts with approximately 80% of thymocytes and 45% of peripheral blood lymphocytes. RPA-T4 is capable of blocking HIV-1, gp120, and inhibits syncytium formation.
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
CD4 | |
Monoclonal | |
0.2mg/mL | |
L3T4; T-cell surface antigen T4/Leu-3; W3/25; CD4 antigen (p55) | |
Mouse | |
50 μg | |
Primary | |
Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze. |
Flow Cytometry | |
RPA-T4 | |
Brilliant Violet 650 | |
Aqueous buffered solution containing ≤0.09% sodium azide. | |
Affinity Purified | |
RUO | |
Human | |
IgG1 κ |
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