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Supplier: Biolegend
Description: PE/Cy7 anti-mouse/human CD45R/B220 [RA3-6B2]; Isotype: Rat IgG2a, κ; Reactivity: Mouse, Human, Cross-Reactivity: Cat (Feline); Apps: FC; Size: 100 μg

Supplier: Biolegend
Description: PerCP/Cy5.5 anti-mouse/human CD45R/B220 [RA3-6B2]; Isotype: Rat IgG2a, κ; Reactivity: Mouse, Human, Cross-Reactivity: Cat (Feline); Apps: FC; Size: 100 μg

Supplier: Biolegend
Description: PE/Cy5 anti-mouse/human CD45R/B220 [RA3-6B2]; Isotype: Rat IgG2a, κ; Reactivity: Mouse, Human, Cross-Reactivity: Cat (Feline); Apps: FC; Size: 100 μg

Supplier: Biolegend
Description: Purified anti-mouse/human CD45R/B220 [RA3-6B2]; Isotype: Rat IgG2a, κ; Reactivity: Mouse, Human, Cross-Reactivity: Cat (Feline); Apps: FC, CyTOF®, IP, IHC; Size: 500 μg

Supplier: Biolegend
Description: Brilliant Violet 421™ anti-mouse/human CD45R/B220 [RA3-6B2]; Isotype: Rat IgG2a, κ; Reactivity: Mouse, Human, Cross-Reactivity: Cat (Feline); Apps: FC, IHC; Size: 50 μg

Supplier: Biolegend
Description: Pacific Blue™ anti-mouse/human CD45R/B220 [RA3-6B2]; Isotype: Rat IgG2a, κ; Reactivity: Mouse, Human, Cross-Reactivity: Cat (Feline); Apps: FC; Size: 25 μg

Supplier: Biolegend
Description: APC/Cy7 anti-mouse/human CD45R/B220 [RA3-6B2]; Isotype: Rat IgG2a, κ; Reactivity: Mouse, Human, Cross-Reactivity: Cat (Feline); Apps: FC; Size: 100 μg

Supplier: Biolegend
Description: Alexa Fluor® 647 anti-mouse/human CD45R/B220 [RA3-6B2]; Isotype: Rat IgG2a, κ; Reactivity: Mouse, Human, Cross-Reactivity: Cat (Feline); Apps: FC, IHC, IF; Size: 25 μg

Supplier: Tonbo Biosciences
Description: The RA3-6B2 antibody reacts with the human and mouse CD45 isoform known as CD45R, or B220, a protein tyrosine phosphatase of 220 kDa. CD45 is one of the most abundant hematopoietic markers, and is expressed on all leukocytes (the Leukocyte Common Antigen, LCA). Various isoforms are generated and expressed in cell-specific patterns, all critical for leukocyte function. In mouse, the CD45R/B220 isoform is predominantly found on B cells, at varying levels on all stages from pro-B cells to activated B cells, and may also be detected on certain T cell and NK cell subsets. It is of note that B220 is not similarly expressed on human B cells, where it appears to be differentiation-specific and therefore expressed on only some B cell subsets. Other forms of CD45 with restricted cellular expression include CD45RA, CD45RB and CD45RO.

Supplier: Biolegend
Description: Alexa Fluor® 700 anti-mouse/human CD45R/B220 [RA3-6B2]; Isotype: Rat IgG2a, κ; Reactivity: Mouse, Human, Cross-Reactivity: Cat (Feline); Apps: FC; Size: 100 μg

Supplier: Biolegend
Description: Brilliant Violet 605™ anti-mouse/human CD45R/B220 [RA3-6B2]; Isotype: Rat IgG2a, κ; Reactivity: Mouse, Human, Cross-Reactivity: Cat (Feline); Apps: FC; Size: 50 μg

Supplier: Biolegend
Description: Alexa Fluor® 488 anti-mouse/human CD45R/B220 [RA3-6B2]; Isotype: Rat IgG2a, κ; Reactivity: Mouse, Human, Cross-Reactivity: Cat (Feline); Apps: FC, IHC, IF; Size: 25 μg

Catalog Number: (100243-528)
Supplier: Southern Biotechnology
Description: CD45R, also known as B220, a member of the protein tyrosine phosphate family and a major cell surface glycoprotein, represents a restricted form of the CD45 family which primarily recognizes only cells of B-lineage from pro-B cell through mature B lymphocytes and prior to the availability of anti-CD19 monoclonal antibodies was commonly used as a pan B-cell marker. It also reacts with certain activated T cells as well as non-MHC-restricted lytically active lymphokine-activated killer (LAK) cells. In vivo administration of RA3-6B2 has been shown to affect differentiation of both T and B cells in normal mice and reduce the level of anti-DNA antibodies and lymphadenopathies in MRL/lpr mice.


Catalog Number: (100243-536)
Supplier: Southern Biotechnology
Description: CD45R, also known as B220, a member of the protein tyrosine phosphate family and a major cell surface glycoprotein, represents a restricted form of the CD45 family which primarily recognizes only cells of B-lineage from pro-B cell through mature B lymphocytes and prior to the availability of anti-CD19 monoclonal antibodies was commonly used as a pan B-cell marker. It also reacts with certain activated T cells as well as non-MHC-restricted lytically active lymphokine-activated killer (LAK) cells. In vivo administration of RA3-6B2 has been shown to affect differentiation of both T and B cells in normal mice and reduce the level of anti-DNA antibodies and lymphadenopathies in MRL/lpr mice.


Supplier: Southern Biotechnology
Description: CD45R, also known as B220, a member of the protein tyrosine phosphate family and a major cell surface glycoprotein, represents a restricted form of the CD45 family which primarily recognizes only cells of B-lineage from pro-B cell through mature B lymphocytes and prior to the availability of anti-CD19 monoclonal antibodies was commonly used as a pan B-cell marker. It also reacts with certain activated T cells as well as non-MHC-restricted lytically active lymphokine-activated killer (LAK) cells. In vivo administration of RA3-6B2 has been shown to affect differentiation of both T and B cells in normal mice and reduce the level of anti-DNA antibodies and lymphadenopathies in MRL/lpr mice.

Catalog Number: (103241-BL)
Supplier: Biolegend
Description: Brilliant Violet 650™ anti-mouse/human CD45R/B220 [RA3-6B2]; Isotype: Rat IgG2a, κ; Reactivity: Mouse, Human, Cross-Reactivity: Cat (Feline); Apps: FC; Size: 125 μl


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