Brilliant Violet 421™ anti-mouse/human CD45R/B220 Antibody

Pricing & Availability
Clone
RA3-6B2 (See other available formats)
Other Names
B220
Isotype
Rat IgG2a, κ
Ave. Rating
3 reviews
RA3-6B2_BV421_032911
C57BL/6 mouse splenocytes were stained with CD45R/B220 (clone RA3-6B2) Brilliant Violet 421™ (filled histogram) or rat IgG2a, κ Brilliant Violet 421™ isotype control (open histogram).
  • RA3-6B2_BV421_032911
    C57BL/6 mouse splenocytes were stained with CD45R/B220 (clone RA3-6B2) Brilliant Violet 421™ (filled histogram) or rat IgG2a, κ Brilliant Violet 421™ isotype control (open histogram).
  • RA3-6B2_BV421_CD45RB220_Antibody_2_IHC_042216
    C57BL/6 mouse frozen spleen sections were fixed with 4% paraformaldehyde (PFA) for ten minutes at room temperature and blocked with 5% FBS plus 5% rat/mouse serum for 30 minutes at room temperature. Then the section was stained with 1.25 µg/ml of anti-mouse/human CD45R/B220 (clone RA3-6B2) Brilliant Violet 421™ (blue), anti-mouse CD5 (clone 53-7.3) Alexa Fluor® 594 (red), and anti-mouse F4/80 (clone BM8) Alexa Fluor® 647 (green) overnight at 4°C. The image was captured with a 10X objective.
See Brilliant Violet 421™ spectral data See high resolution IHC data...
Cat # Size Price Quantity Avail. Save
103239 125 µl $150.00
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103251 50 µg $230.00
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103240 500 µl $340.00
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This product is offered in multiple sizing options (µg and µL/test sizes). To compare these sizing options and learn which is the best choice for you, please contact tech support.
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

Product Details

Reactivity
Mouse, Human, Cross-Reactivity: Cat (Feline)
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 and BSA (origin USA).
Preparation
The antibody was purified by affinity chromatography and conjugated with Brilliant Violet 421™ under optimal conditions. The solution is free of unconjugated Brilliant Violet 421™ and unconjugated antibody.
Storage & Handling
The antibody solution should be stored undiluted between 2°C and 8°C, and protected from prolonged exposure to light. Do not freeze.
Application

FC - Quality tested
IHC - Validated

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 ≤5 µl per million cells or 5 µl per 100 µl of whole blood. For immunohistochemistry, a concentration range of 2.5 - 10 µg per ml. It is recommended that the reagent be titrated for optimal performance for each application.

Brilliant Violet 421™ excites at 405 nm and emits at 421 nm. The standard bandpass filter 450/50 nm is recommended for detection. Brilliant Violet 421™ is a trademark of Sirigen Group Ltd.


Learn more about Brilliant Violet™.

This product is subject to proprietary rights of Sirigen Inc. and is made and sold under license from Sirigen Inc. The purchase of this product conveys to the buyer a non-transferable right to use the purchased product for research purposes only. This product may not be resold or incorporated in any manner into another product for resale. Any use for therapeutics or diagnostics is strictly prohibited. This product is covered by U.S. Patent(s), pending patent applications and foreign equivalents.
Excitation Laser
Violet Laser (405 nm)
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. The LEAF™ purified antibody (Endotoxin <0.1 EU/μg, Azide-Free, 0.2 μm filtered) is recommended for functional assays (Cat. No. 103216).

Application References

(PubMed link indicates BioLegend citation)
  1. Coffman RL. 1982. Immunol. Rev. 69:5. (IP)
  2. George A, et al. 1994. J. Immunol. 152:1014. (Activ)
  3. Asensi V, et al. 1989. Immunology 68:204. (Activ)
  4. Domiati-Saad R, et al. 1993. J. Immunol. 151:5936. (Activ)
  5. Hata H, et al. 2004. J. Clin. Invest. 114:582. (IHC)
  6. Monteith CE, et al. 1996. Can. J. Vet. Res. 60:193. (IHC)
  7. Shih FF, et al. 2006. J. Immunol. 176:3438. (FC)
  8. Chang C L-T, et al. 2007. J. Immunol. 178:6984.
  9. Fazilleau N, et al. 2007. Nature Immunol. 8:753.
  10. Lang GL, et al. 2008. Blood 111:2158. PubMed
  11. Charles N, et al. 2010. Nat. Med. 16:701. (FC) PubMed
  12. del Rio ML, et al. 2011. Transpl. Int. 24:501. (FC) PubMed
  13. Murakami R, et al. 2013. PLoS One. 8:73270. PubMed
  14. Lindner J, et al. 2014. J Immunol. 192:4483. PubMed
  15. Siegemund S, et al. 2015. PLoS One. 10:124661. PubMed
  16. Schweighoffer E, et al. 2017. J Exp Med. 214:1269. PubMed
Publication Library
RRID
AB_10933424 (BioLegend Cat. No. 103239)
AB_2562905 (BioLegend Cat. No. 103251)
AB_11203896 (BioLegend Cat. No. 103240)

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
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

What is the F/P ratio range of our BV421™ format antibody reagents?

It is lot-specific. On average it ranges between 2-4.

Go To Top Version: 3    Revision Date: 04/22/2016

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*These products may be covered by one or more Limited Use Label Licenses (see the BioLegend Catalog or our website, www.biolegend.com/ordering#license). BioLegend products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products, reverse engineer functionally similar materials, or to provide a service to third parties without written approval of BioLegend. By use of these products you accept the terms and conditions of all applicable Limited Use Label Licenses. Unless otherwise indicated, these products are for research use only and are not intended for human or animal diagnostic, therapeutic or commercial use.

 

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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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