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The RA3-6B2 antibody reacts with an epitope on the extracellular domain of the exon A‐restricted isoform of mouse CD45. CD45 is a member of the protein tyrosine phosphatase family and functions in a number of immunoregulatory processes, including cell activation, growth, differentiation, and oncogenic transformation. The large cytoplasmic portion of CD45 contains two tyrosine phosphatase domains (one of which is enzymatically active) that are involved in modulating the function of Src kinases such as Lck and Fyn. Several isoforms of CD45 have been identified, the expression of which differs according to cell type and functional status. Alternative splicing of three exons encoding the extracellular RA, RB, and RC polypeptide sequences gives rise to up to 8 isoforms with molecular masses in the range of 200 - 220 kDa. The exon A‐restricted isoform of mouse CD45, termed CD45R, contains the RA, RB, and RC regions and is the largest of the isoforms. CD45R is expressed by the B cell lineage from early pro‐B to mature B cells, with its expression downregulated during differentiation to plasma cells. CD45R is also expressed on subsets of T, NK, dendritic, and lymphokine-activated killer (LAK) cells.
This antibody clone has been verified for purity assessments of cells isolated with EasySep™ kits, including EasySep™ Mouse B Cell Isolation Kit (Catalog #19854).
Subtype
Primary Antibodies
Target Antigen
CD45R (B220)
Alternative Names
B220, Protein tyrosine phosphatase receptor type C, PTPRC
Flow cytometry analysis of C57BL/6 mouse splenocytes labeled with Anti-Mouse CD45R Antibody, Clone RA3-6B2, followed by a mouse anti-rat IgG2a antibody, FITC (filled histogram), or Rat IgG2a, kappa Isotype Control Antibody, Clone RTK2758 (Catalog #60076), followed by a mouse anti-rat IgG2a antibody, FITC (solid line histogram).
Figure 2. Data for PE-Conjugated
Flow cytometry analysis of C57BL/6 mouse splenocytes labeled with Anti-Mouse CD45R Antibody, Clone RA3-6B2, PE (filled histogram) or Rat IgG2a, kappa Isotype Control Antibody, Clone RTK2758, PE (Catalog #60076PE) (solid line histogram).
Figure 3. Data for APC-Conjugated
Flow cytometry analysis of C57BL/6 mouse splenocytes labeled with Anti-Mouse CD45R Antibody, Clone RA3-6B2, APC (filled histogram) or Rat IgG2a, kappa Isotype Control Antibody, Clone RTK2758, APC (Catalog #60076AZ) (solid line histogram).
Figure 4. Data for FITC-Conjugated
Flow cytometry analysis of C57BL/6 mouse splenocytes labeled with Anti-Mouse CD45R Antibody, Clone RA3-6B2, FITC (filled histogram) or Rat IgG2a, kappa Isotype Control Antibody, Clone RTK2758, FITC (Catalog #60076FI) (solid line histogram).
Figure 5. Data for PerCP-Cy55-Conjugated
Flow cytometry analysis fo C57BL/6 mouse splenocytes labeled with Anti-Mouse CD45R Antibody, Clone RA3-6B2, PerCP-Cy5.5 (filled histogram) or a rat IgG2a, kappa isotype control antibody, PerCP-Cy5.5 (solid line histogram).
Figure 6. Data for Alexa Fluor® 488-Conjugated
Flow cytometry analysis of C57BL/6 mouse splenocytes labeled with Anti-Mouse CD45R Antibody, Clone RA3-6B2, Alexa Fluor® 488 (filled histogram) or Rat IgG2a, kappa Isotype Control Antibody, Clone RTK2758, Alexa Fluor® 488 (Catalog #60076AD) (solid line histogram).
Figure 7. Data for Biotin-Conjugated
Flow cytometry analysis of C57BL/6 mouse splenocytes labeled with Anti-Mouse CD45R Antibody, Clone RA3-6B2, Biotin, followed by streptavidin (SAV) APC (filled histogram), or Rat IgG2a, kappa Isotype Control Antibody, Clone RTK2758, Biotin (Catalog #60076BT), followed by SAV APC (solid line histogram).
Figure 8. Data for PB-Conjugated
Flow cytometry analysis of C57BL/6 mouse splenocytes labeled with Anti-Mouse CD45R Antibody, Clone RA3-6B2, Pacific Blue™ (filled histogram) or a rat IgG2a, kappa Pacific Blue™ isotype control antibody (solid line histogram).
This product is designed for use in the following research area(s) as part
of the highlighted workflow stage(s). Explore these workflows to learn more about the other products we
offer to support each research area.
Rat monoclonal IgG2a, kappa isotype control antibody
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Anti-Mouse CD45R Antibody, Clone RA3-6B2
Legal Statement:
Alexa Fluor and Pacific Blue are trademarks of Life Technologies Corporation. Antibodies conjugated to Alexa Fluor® or Pacific Blue™ are licensed for internal research use only and sale is expressly conditioned on the buyer not using the antibody for manufacturing, performing a service or medical test, or otherwise generating revenue. For use other than research, contact Life Technologies Corporation, 5791 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@lifetech.com.
Quality Statement:
PRODUCTS ARE FOR RESEARCH USE ONLY AND NOT INTENDED FOR HUMAN OR ANIMAL DIAGNOSTIC OR THERAPEUTIC USES UNLESS OTHERWISE STATED. FOR ADDITIONAL INFORMATION ON QUALITY AT STEMCELL, REFER TO WWW.STEMCELL.COM/COMPLIANCE.
