B220 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).
Mouse B220/CD45R Antibody (RA3-6B2)
R&D Systems | Catalog # MAB1217
Scientific images may be resized, cropped, or adjusted for brightness or contrast for presentation purposes. These updates are limited to presentation and do not affect the underlying scientific interpretation of the data. Where available, additional source data may be provided upon request.
Key Product Details
Species Reactivity
Validated:
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Applications
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Cited:
Label
Antibody Source
Product Specifications
Immunogen
Specificity
Clonality
Host
Isotype
Scientific Data Images for Mouse B220/CD45R Antibody (RA3-6B2)
B220/CD45R in Mouse Splenocytes.
B220/CD45R was detected in immersion fixed mouse splenocytes using Rat Anti-Mouse B220/CD45R Monoclonal Antibody (Catalog # MAB1217) at 10 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conju-gated Anti-Rat IgG Secondary Antibody (yellow; Catalog # NL013) and counter-stained with DAPI (blue). View our protocol for Fluorescent ICC Staining of Non-adherent Cells.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 Monoclonal Antibody (Catalog # MAB1217) or (B) Rat IgG2AIsotype Control (Catalog # MAB006) followed by Phycoerythrin-conjugated Anti-Rat IgG Secondary Antibody (Catalog # F0105B).Detection of B220/CD45R by Flow Cytometry
pDCs downregulate Siglec-H upon MCMV infection in a TLR9- and MyD88-dependent manner in vitro.Flt3-L derived total BMDCs or CD11c+B220+ pDCs sorted from BMDC cultures were mock treated with PBS, CpG treated or MCMV infected at MOI 2 unless indicated otherwise. (A) Representative FACS plots show Siglec-H expression and MCMV-GFP expression of BMDCs (upper panel). Representative histogram plots display B220 expression on CD11c+ Siglec-H+ DCs at 0, 3, 6 and 24 h p.i. compared with mock treated controls (lower panel). (B) Representative histogram plots display Siglec-H expression of sorted wt, TLR9−/− and MyD88−/− pDCs after stimulation or infection. (C) Representative histogram plots display Siglec-H expression of sorted wt and IFNAR−/− pDCs 24 h after infection or stimulation. (D) Quantification of the Siglec-H expression from wt and IFNAR−/− pDCs after MCMV infection relative to their respective mock controls. Data are from one of three individual experiments with similar results. *p<0.05, ***p<0.001, Students t-test. (Gray bar = isotype control, gray dashed line = mock treatment and dark bold line = CpG-A treatment or MCMV infection). Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/24086137), licensed under a CC-BY license. Not internally tested by R&D Systems.Detection of B220/CD45R by Flow Cytometry
pDCs downregulate Siglec-H upon MCMV infection in a TLR9- and MyD88-dependent manner in vitro.Flt3-L derived total BMDCs or CD11c+B220+ pDCs sorted from BMDC cultures were mock treated with PBS, CpG treated or MCMV infected at MOI 2 unless indicated otherwise. (A) Representative FACS plots show Siglec-H expression and MCMV-GFP expression of BMDCs (upper panel). Representative histogram plots display B220 expression on CD11c+ Siglec-H+ DCs at 0, 3, 6 and 24 h p.i. compared with mock treated controls (lower panel). (B) Representative histogram plots display Siglec-H expression of sorted wt, TLR9−/− and MyD88−/− pDCs after stimulation or infection. (C) Representative histogram plots display Siglec-H expression of sorted wt and IFNAR−/− pDCs 24 h after infection or stimulation. (D) Quantification of the Siglec-H expression from wt and IFNAR−/− pDCs after MCMV infection relative to their respective mock controls. Data are from one of three individual experiments with similar results. *p<0.05, ***p<0.001, Students t-test. (Gray bar = isotype control, gray dashed line = mock treatment and dark bold line = CpG-A treatment or MCMV infection). Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/24086137), licensed under a CC-BY license. Not internally tested by R&D Systems.Applications for Mouse B220/CD45R Antibody (RA3-6B2)
CyTOF-reported
Flow Cytometry
Sample: Mouse splenocytes
Immunocytochemistry
Sample: Immersion fixed mouse splenocytes
Immunoprecipitation
Flow Cytometry Panel Builder
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Advanced Features
- Spectra Viewer - Custom analysis of spectra from multiple fluorochromes
- Spillover Popups - Visualize the spectra of individual fluorochromes
- Antigen Density Selector - Match fluorochrome brightness with antigen density
Formulation, Preparation, and Storage
Purification
Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.
Formulation
Shipping
Stability & Storage
- 12 months from date of receipt, -20 to -70 °C as supplied.
- 1 month, 2 to 8 °C under sterile conditions after reconstitution.
- 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Calculators
Background: B220/CD45R
References
- Coffman, R.L. (1982) Immuno. Rev. 69:5.
- Hardy, R.R. et al. (1991) J. Exp. Med. 173:1213.
- Hathcock, K.S. et al. (1992) J. Immunol. 149:2286.
- Allman, D.M. et al. (1992) J. Immunol. 149:2533.
- Asensi, V.K. et al. (1989) Immunology 68:204.
- Domiati-Saad, R. et al. (1993) J. Immunol. 151:5936.
Long Name
Alternate Names
Gene Symbol
Additional B220/CD45R Products
Product Documents for Mouse B220/CD45R Antibody (RA3-6B2)
Certificate of Analysis
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Product Specific Notices for Mouse B220/CD45R Antibody (RA3-6B2)
For research use only
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Citations for Mouse B220/CD45R Antibody (RA3-6B2)
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Protocols
Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.
- 7-Amino Actinomycin D (7-AAD) Cell Viability Flow Cytometry Protocol
- Appropriate Fixation of IHC/ICC Samples
- Cellular Response to Hypoxia Protocols
- ClariTSA™ Fluorophore Kits
- Detection & Visualization of Antibody Binding
- Extracellular Membrane Flow Cytometry Protocol
- Flow Cytometry Protocol for Cell Surface Markers
- Flow Cytometry Protocol for Staining Membrane Associated Proteins
- Flow Cytometry Staining Protocols
- Flow Cytometry Troubleshooting Guide
- ICC Cell Smear Protocol for Suspension Cells
- ICC Immunocytochemistry Protocol Videos
- ICC for Adherent Cells
- Immunocytochemistry (ICC) Protocol
- Immunocytochemistry Troubleshooting
- Immunofluorescence of Organoids Embedded in Cultrex Basement Membrane Extract
- Immunohistochemistry (IHC) and Immunocytochemistry (ICC) Protocols
- Immunoprecipitation Protocol
- Intracellular Flow Cytometry Protocol Using Alcohol (Methanol)
- Intracellular Flow Cytometry Protocol Using Detergents
- Intracellular Nuclear Staining Flow Cytometry Protocol Using Detergents
- Intracellular Staining Flow Cytometry Protocol Using Alcohol Permeabilization
- Intracellular Staining Flow Cytometry Protocol Using Detergents to Permeabilize Cells
- Preparing Samples for IHC/ICC Experiments
- Preventing Non-Specific Staining (Non-Specific Binding)
- Primary Antibody Selection & Optimization
- Propidium Iodide Cell Viability Flow Cytometry Protocol
- Protocol for Liperfluo
- Protocol for VisUCyte™ HRP Polymer Detection Reagent
- Protocol for the Characterization of Human Th22 Cells
- Protocol for the Characterization of Human Th9 Cells
- Protocol for the Fluorescent ICC Staining of Cell Smears - Graphic
- Protocol for the Fluorescent ICC Staining of Cultured Cells on Coverslips - Graphic
- Protocol for the Preparation and Fluorescent ICC Staining of Cells on Coverslips
- Protocol for the Preparation and Fluorescent ICC Staining of Non-adherent Cells
- Protocol for the Preparation and Fluorescent ICC Staining of Stem Cells on Coverslips
- Protocol for the Preparation of a Cell Smear for Non-adherent Cell ICC - Graphic
- Protocol: Annexin V and PI Staining by Flow Cytometry
- Protocol: Annexin V and PI Staining for Apoptosis by Flow Cytometry
- TUNEL and Active Caspase-3 Detection by IHC/ICC Protocol
- The Importance of IHC/ICC Controls
- Troubleshooting Guide: Fluorokine Flow Cytometry Kits
- View all Protocols, Troubleshooting, Illustrated assays and Webinars