Biotin anti-mouse/human CD45R/B220 Antibody

Pricing & Availability
Clone
RA3-6B2 (See other available formats)
Regulatory Status
RUO
Other Names
B220
Isotype
Rat IgG2a, κ
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Product Citations
publications
RA3-6B2_Biotin_090507
C57BL/6 mouse splenocytes stained with biotinylated RA3-6B2, followed by Sav-PE
  • RA3-6B2_Biotin_090507
    C57BL/6 mouse splenocytes stained with biotinylated RA3-6B2, followed by Sav-PE
  • RA3-6B2_Biotin_B220_Antibody_2_010620
    C57BL/6 mouse frozen spleen section was fixed with 4% paraformaldehyde (PFA) for 10 minutes at room temperature and blocked with 5% FBS for 30 minutes at room temperature. Then the section was stained with 10 µg/ml of biotin anti-mouse B220 (clone RA3-6B2) and Alexa Fluor® 488 anti-mouse CD29 (clone HMβ1-1) (green) overnight at 4°C, followed by 2.5 µg/ml of Spark YG™ 570 Streptavidin (red) for 2 hours at room temperature. The image was captured by 10X objective.
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103203 50 µg 16,00€
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103204 500 µg 68,00€
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Description

CD45R, also known as B220, is an isoform of CD45. It is a member of the protein tyrosine phosphatase (PTP) family with a molecular weight of approximately 180-240 kD. CD45R is expressed on B cells (at all developmental stages from pro-B cells through mature B cells), activated B cells, and subsets of T and NK cells. CD45R (B220) is also expressed on a subset of abnormal T cells involved in the pathogenesis of systemic autoimmunity in MRL-Faslpr and MRL-Fasgld mice. It plays a critical role in TCR and BCR signaling. The primary ligands for CD45 are galectin-1, CD2, CD3, and CD4. CD45R is commonly used as a pan-B cell marker; however, CD19 may be more appropriate for B cell specificity.

Product Details
Technical Data Sheet (pdf)

Product Details

Reactivity
Mouse, Human, Cross-Reactivity: Cat (Feline)
Antibody Type
Monoclonal
Host Species
Rat
Immunogen
Abelson murine leukemia virus-induced pre-B tumor cells
Formulation
Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.
Preparation
The antibody was purified by affinity chromatography, and conjugated with biotin under optimal conditions.
Concentration
0.5 mg/ml
Storage & Handling
The antibody solution should be stored undiluted between 2°C and 8°C. Do not freeze.
Application

FC - Quality tested
IHC-F - Verified

Recommended Usage

Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. For flow cytometric staining, the suggested use of this reagent is ≤ 0.25 µg per 106 cells in 100 µl volume. For immunohistochemistry, a concentration range of 5.0 - 10 µg/mL is suggested. It is recommended that the reagent be titrated for optimal performance for each application.

Application Notes

Clone RA3-6B2 has been described to react with an epitope on the extracellular domain of the transmembrane CD45 glycoprotein which is dependent upon the expression of exon A and specific carbohydrate residues. Additional reported applications (for the relevant formats) include: immunoprecipitation1, in vitro and in vivo modulation of B cell responses2-4, and immunohistochemistry of acetone-fixed frozen sections and formalin-fixed paraffin-embedded sections5,6.

Application References

(PubMed link indicates BioLegend citation)
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Product Citations
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RRID
AB_312988 (BioLegend Cat. No. 103203)
AB_312989 (BioLegend Cat. No. 103204)

Antigen Details

Structure
Protein tyrosine phosphatase (PTP) family, 180-240 kD
Distribution

B cells, T cell subset, NK cell subset

Function
Phosphatase, T and B cell activation
Ligand/Receptor
Galectin-1, CD2, CD3, CD4
Cell Type
B cells, NK cells, T cells
Biology Area
Cell Biology, Immunology, Inhibitory Molecules, Neuroscience, Neuroscience Cell Markers
Molecular Family
CD Molecules
Antigen References

1. Barclay A, et al. 1997. The Leukocyte Antigen FactsBook Academic Press.
2. Trowbridge IS, et al. 1993. Annu. Rev. Immunol. 12:85.
3. Kishihara K, et al. 1993. Cell 74:143.
4. Pulido R, et al. 1988. J. Immunol. 140:3851.

Gene ID
19264 View all products for this Gene ID 5788 View all products for this Gene ID
UniProt
View information about CD45R on UniProt.org

Related FAQs

How many biotin molecules are per antibody structure?
We don't routinely measure the number of biotins with our antibody products but the number of biotin molecules range from 3-6 molecules per antibody.
Go To Top Version: 3    Revision Date: 01.06.2020

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This data display is provided for general comparisons between formats.
Your actual data may vary due to variations in samples, target cells, instruments and their settings, staining conditions, and other factors.
If you need assistance with selecting the best format contact our expert technical support team.

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