|Detection of B220/CD45R in Mouse Splenocytes by Flow Cytometry. Mouse splenocytes were stained with Rat Anti-Mouse CD3 APC‑conjugated Monoclonal Antibody (Catalog # FAB4841A) and either (A) Rat Anti-Mouse B220/CD45R Alexa Fluor® 488‑conjugated Monoclonal Antibody (Catalog # FAB1217G) or (B) Rat IgG2A Alexa Fluor 488 Isotype Control (Catalog # IC006G). View our protocol for Staining Membrane-associated Proteins.|
|B220/CD45R in Mouse Splenocytes. B220/CD45R was detected in immersion fixed mouse splenocytes using Rat Anti-Mouse B220/CD45R Alexa Fluor® 488‑conjugated Monoclonal Antibody (Catalog # FAB1217G; green) at 5 µg/mL for 3 hours at room temperature. Cells were counterstained with DAPI (blue). View our protocol for Fluorescent ICC Staining of Non-adherent Cells.|
B220 (accession # P06800) is the mouse CD45 isoform CD45R, which is predominantly expressed on all B lymphocytes, including pro-, mature and activated B cells (1‑3). The level of B220 antigen expression on the B cell lineage is developmentally regulated (2‑4) and this antibody is commonly used as a B cell marker. RA3-6B2 has been reported to inhibit in vivo B cell responses (5, 6).
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