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Anti cd20 apc

Manufactured by Thermo Fisher Scientific
Sourced in Germany

Anti-CD20-APC is a monoclonal antibody conjugated with the fluorescent dye Allophycocyanin (APC). It is designed to bind to the CD20 antigen, which is expressed on the surface of B cells. This product can be used for the identification and analysis of B cells in flow cytometry applications.

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3 protocols using anti cd20 apc

1

EBV Recombinant Virus Infection of Primary B Cells

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Recombinant EBV KOs, Revs and wild type have been described previously [54 (link)]. Virus production and B cell isolation were performed as previously described [52 (link),55 (link)]. Primary B cells were isolated from anonymous buffy coat residues (UK Blood Transfusion Service). B cell purity was assessed to be >90% CD20+ using anti-CD20-APC (eBioscience) staining and flow cytometric analysis. Three million primary B cells in 1.5 ml were infected with 0.5 ml of supernatant containing a total of 1–3x105 Raji green units [55 (link)]. RNA from three million uninfected primary B cells was taken on the day of infection and infected cells were incubated in RPMI 1640 (Life Technologies) supplemented with 15% foetal bovine serum, penicillin, and streptomycin at 37°C and 5% CO2. For a period of 30 days, every three days—or five days for the second primary B cell infection with RBPJ binding mutant virus (see below) - 0.5 ml of cells were harvested for RNA extraction and replaced by fresh medium. After this, cells were, where possible, grown into LCL and analysed by immunoblotting.
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2

FACS and PLA Analysis of Mouse and Human B Cells

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For FACS analysis of mouse spleen B cells or transfected TKO cells, following fluorophore- conjugated anti-mouse antibodies were used: Anti-CD45R-PerCP-Cy5.5 (RA3-6B2), Anti-IgM-APC, IgM-PE, IgM-FITC (II/41; all eBioscience, Frankfurt, Germany), Anti-CD20-APC, Anti-CD19-PE-Cy7, anti-IgD-AF647, Anti-IgD-APC, Anti-IgD-PE (11-26c.2a; all eBioscience).
For PLA probes against specific targets, the following unlabelled antibodies were used: IgD (11-26c.2a, SouthernBiotech, Birmingham, AL), IgD (AMS9.1; Santa Cruz Biotechnology, Dallas, TX), IgM (R33.24.12, in house hybridoma culture), IgM (rabbit anti-mouse µHC; Rockland Immunochemicals, Gilbertsville, PA), IgM (1B4B1; SouthernBiotech), Lambda light chain (JC5-1; SouthernBiotech), Kappa light chain (187.1; SouthernBiotech), CD19 (6D5; AbD Serotec, Düsseldorf, Germany) and CD20 (AISB12; eBioscience). Igα (HMK7/A9; abcam, Cambridge, UK), Syk (Syk-01; BioLegend, San Diego, CA).
For PLA probes against human BCR, the following unlabelled antibodies were used: IgD (IA6-2; BioLegend), IgD (IADB6) and IgM (SA-DA4) from Acris Antibodies (Herford, Germany), and IgM (Fc5u) from Genway Biotech (San Diego, CA).
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3

EBNA3C Knockout and Rev Virus Production for Primary B Cell Isolation

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Recombinant EBNA3C KO and Rev viruses, virus production, and primary B cell isolation have been described previously (Anderton et al., 2008 (link); Skalska et al., 2013 (link)). B cell purity was assessed to be >90% CD20+ using anti–CD20-APC (eBioscience) staining and flow cytometric analysis. RNA was harvested from uninfected primary B cells. Primary B cells (from anonymous donor buffy coats, purchased from the UK Blood Transfusion Service) were infected with virus-containing supernatant, and infected cells were incubated in RPMI 1640 (Thermo Fisher Scientific) supplemented with 15% fetal bovine serum, penicillin, and streptomycin at 37°C and 5% CO2. Over a period of 30 d, infected cells were harvested for RNA extraction and replaced by fresh medium every 3 or 5 d.
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