CD21 Mouse anti-Human, Brilliant Violet 605, Clone: 1048, BD Optibuild™

Catalog No.	Quantity
BDB742761	50 μg

Catalog No. BDB742761 Supplier BD Biosciences Supplier No. 742761

Description

Mouse Monoclonal Antibody

CD21 is a 145 kDa transmembrane glycoprotein that is expressed on mature B cells, follicular dendritic cells, a subset of immature thymocytes and on some epithelial cells. CD21 is also known as the C3d Receptor, Complement Receptor 2 (CR2), and the Epstein-Barr Virus receptor, (EBV-R). CD21 is part of a large signal-transduction complex that also includes CD19, CD81 and Leu13. CR2 serves as a receptor for the activation fragments of complement component C3, i.e. C3d, iC3d, and C3dg and C3d-bound antigens and plays a central role in the immune response by amplifying B-cell activation and proliferation. CR2 is also the receptor for EBV by binding its surface glycoprotein gp350/220. Anti-human CR2 hybridomas were generated from Cr2-/-mice (lacking the cr2 gene, that encodes CR2 and CR1 in mice) immunized with the recombinant protein representing the first two amino-terminal short consensus repeats (SRC) of human CR2, SCR1-2. Both the C3d and EBV binding sites of hu CR2 were localized to these sites. Clone 1048 has been reported to specifically react with CR2-expressing cells and to inhibit CR2 interactions with C3 fragments or the EBV surface protein, gp350/220.

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 407nm and Em Max of 602nm, BD Horizon BV605 can be excited by a violet laser and detected with a standard 610/20nm filter set. BD Horizon BV605 is a tandem fluorochrome of BD Horizon BV421 and an acceptor dye with an Em max at 605nm. 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. BV605 is a tandem fluorochrome that combines BD Horizon BV421 and Cy™3.5. These conjugates are very bright, exhibiting similar brightness to equivalent PE conjugates. Due to the excitation of Cy3.5 by the green (532nm) and yellow-green (561nm) lasers, there will be significant spillover of the BD Horizon BV605 signal into the PE and BD Horizon PE-CF594 detectors off the green or yellow-green lasers.

Specifications

• Antigen: CD21
• Classification: Monoclonal
• Clone: 1048
• Concentration: 0.2mg/mL
• Conjugate: Brilliant Violet 605
• Formulation: Aqueous buffered solution containing ≤0.09% sodium azide.
• Gene Alias: CR2, Complement receptor type 2, C3DR, EBV-R, Epstein-Barr virus receptor
• Host Species: Mouse
• Immunogen: Human CR2 Recombinant Protein
• Purification Method: Affinity Purified
• Quantity: 50 μg
• Regulatory Status: RUO
• Primary or Secondary: Primary
• Target Species: Human
• Content And Storage: Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze.
• Isotype: IgG1 κ

Safety and Handling

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