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MABF443

Sigma-Aldrich

Anti-CD45R (B220) Antibody (human/mouse), PE, clone RA3-6B2

clone RA3-6B2, 0.2 mg/mL, from rat

Synonym(s):

Receptor-type tyrosine-protein phosphatase C, Leukocyte common antigen, L-CA, Lymphocyte antigen 5, Ly-5, T200, CD45

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About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41

biological source

rat

Quality Level

conjugate

PE

antibody form

purified antibody

antibody product type

primary antibodies

clone

RA3-6B2, monoclonal

species reactivity

human, mouse

concentration

0.2 mg/mL

technique(s)

flow cytometry: suitable
immunocytochemistry: suitable
immunofluorescence: suitable
immunohistochemistry: suitable
immunoprecipitation (IP): suitable
western blot: suitable

isotype

IgG2aκ

UniProt accession no.

shipped in

wet ice

target post-translational modification

unmodified

Gene Information

human ... PTPRC(5788)
mouse ... Ptprc(19264)

General 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, CD45RO and several others.The RA3-6B2 antibody is one of the most consistently used leukocyte markers for B cells, T cell subsets and NK cell subsets in human and mouse. This antibody has also been reported as cross-reactive with feline CD45R/B220.
This rat monoclonal antibody Anti-CD45R (B220) (human/mouse), PE, clone RA3-6B2 validated for use in western blotting, IP, IHC, Immunofluorescence & Flow Cytometry for the detection of CD45R (B220).

Quality

The monoclonal antibody was purified from tissue culture supernatant via affinity chromatography. The purified antibody was conjugated under optimal conditions, with unreacted dye removed from the preparation.

Flow Cytometry Analysis: 0.5 µg of this antibody detected CD45R (B220) in one million C57Bl/6 splenocytes.

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Storage Class Code

12 - Non Combustible Liquids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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Richard N Freiman et al.
Molecular and cellular biology, 22(18), 6564-6572 (2002-08-23)
Regulated gene expression is a complex process achieved through the function of multiple protein factors acting in concert at a given promoter. The transcription factor TFIID is a central component of the machinery regulating mRNA synthesis by RNA polymerase II.

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