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Monoclonal Rat anti-PTPRC antibody BioLegend #103221

Product Details

1DB_ID: 1DB-001-0000838592
Company: BioLegend
Company product code: 103221
Product name: PE/Cy7 anti-mouse CD45R/B220
Product type: Primary, Antibody
Multiple sizes available: 25 µg / ; 100 µg /
Target: PTPRC
Tested applications: FACS
Host: Rat
Reacts with: Human, Mouse, Cat
Clonality: Monoclonal
Conjugation: PE, Cy7™
Immunogen: Abelson murine leukemia virus-induced pre-B tumor cells
Recommended dilutions: Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. For immunofluorescent staining, the suggested use of this reagent is 0.25 µg per million cells in 100 µl volume. It is recommended that the reagent be titrated for optimal performance for each application.
Storage Buffer: Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.
Isotype: IgG2A
Fraction: Kappa
Concentration: 0.2 mg/ml
Storage instructions: The antibody solution should be stored undiluted at 4°C and protected from prolonged exposure to light. Do not freeze.
Additional Application Information: 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 sterile-filtered) is recommended for functional assays (Cat. No. 103216).
Additional Protein Information: 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 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, 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.

Reviews (2)

4 - Excellent (Publishable / Ideal reagent)
Application: FACS
Sample: Murine Lymphocytes
Buffer: HBSS w/ 2% FBS
Dilution: 1:100
4 - Excellent (Publishable / Ideal reagent)
Application: FACS
Sample: Murine Splenocytes
Buffer: HBSS w/ 2% FBS
Dilution: 1:100
See all reviews

Quality control data

Verified publications (8)

Immunol. Rev., 1982
The first part of this article discusses the isolation and characterization of several monoclonal antibodies to the B lineage-specific surface ...
J. Immunol., 1994
The possibility that isotype switching in B cells may be affected by engagement of the CD45 molecule on B cells has been investigated in microcultures...
Immunology, 1989
The predominant accumulating cells in the lymphoid tissue of MRL/lpr mice have been shown to carry the B220 cell marker. This antigen is expressed on ...
J. Immunol., 1993
CD45 is a receptor-like protein tyrosine phosphatase expressed exclusively by cells of the hemopoietic lineage. Studies in vitro involving treatment ...
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About BioLegend

BioLegend develops world-class, cutting-edge antibodies and reagents for biomedical research, manufactured in our state-of-the-art facility in San Diego, CA. Our mission is to accelerate research and discovery by providing the highest quality products at an outstanding value, along with superior customer service and technical support. Our product areas include cell immunophenotyping, cytokines and chemokines, adhesion, cancer research, T regulatory cells, stem cells, innate immunity, cell-cycle analysis, apoptosis, and modification-specific antibodies. All of BioLegend's reagents are supported by superior customer service and come with a quality guarantee. Our aggressive product development program, through technology licensing, collaborations, and internal hybridoma development, produces strategic reagents for use in a variety of applications.