Anti-CD45 Anticorpo [YW62.3] (FITC) (A282120)

Anti-CD45 Antibody [YW62.3] (FITC)

Rat monoclonal [YW62.3] antibody to CD45 (FITC).

This antibody recognises the murine CD45 cell surface antigen, a single pass type1 transmembrane glycoprotein also known as protein tyrosine phosphatase receptor type C (PTPRC) and originally termed Leucocyte Common Antigen (LCA). CD45 is a 180-220kDa glycoprotein expressed by all leucocytes.CD45 is encoded by 3 alleles in mice, differentially expressed by various inbred strains. The Ly5 gene was originally described with the gene product LY5.1 expressed in C57bl/6 and Ly5.2 expressed in SJL strains , this was subsequently expanded to include a third allele encoding Ly5.3. Further, in 1987 a reversal of nomenclature was instigated resulting in the allele in C57bl/6 becoming Ly5b encoding Ly5.2 and the allele in SJL mice becoming Ly5a encoding Ly5.1. Further changes were made in 1992 with Ly5.1 becoming CD45.1 (SJL) and Ly5.2 becoming CD45.2 (C57bl/6). Finally, following work demonstrating homology between the CD45 antigen and a receptor linked protein tyrosine phosphatase the CD45a gene was renamed Ptprca and CD45b renamed Ptprcb (Charbonneau et al. 1988; Zebedee et al. 1991).A number of different isoforms of CD45 are expressed on murine leucocytes depending on the pattern of alternative splicing of 3 exons termed A, B and C encoding regions of ~ 50 amino acids located at the N terminal region of the extracellular portion of CD45. The restricted proteins are termed CD45R with a designation depending on the expressed codon product. Rat anti mouse CD45 antibody, clone YW62.3 is reactive with all isoforms of murine CD45.N.B. Some reactivity with human tissue has been observed.

Flow Cytometry

Flow Cytometry: 1:20 - Neat Pack Size: 0.1 mg 1:50 Pack Size: 0.5 mg, Use 10µl of the suggested working dilution to label 10⁶ cells in 100µl. The Fc region of monoclonal antibodies may bind to cells expressing low affinity Fc receptors. This may be reduced by using SeroBlock FcR ( BUF041A/B).

Mouse

Mouse spleen cells.

Rat

Monoclonal

YW62.3

IgG2b

Protein G affinity chromatography of tissue culture supernatant.

100 µg/ml

Liquid

Supplied in Phosphate Buffered Saline with 1% BSA and 0.09% Sodium Azide.

Shipped at ambient temperature. Upon delivery aliquot and store at -20°C. When thawed, aliquot the sample as needed. Short term (up to 4 weeks): store at 4°C. Long term: store at -20°C. Avoid freeze / thaw cycles. Storage in frost free freezers is not recommended. This product is photosensitive and should be protected from light.

Rat anti Mouse CD45 antibody, clone YW62.3 recognizes the murine CD45 cell surface antigen, a single pass type1 transmembrane glycoprotein also known as protein tyrosine phosphatase receptor type C (PTPRC) and originally termed Leucocyte Common Antigen (LCA). CD45 is a 180-220kDa glycoprotein expressed by all leucocytes.CD45 is encoded by 3 alleles in mice, differentially expressed by various inbred strains. The Ly5 gene was originally described with the gene product LY5.1 expressed in C57bl/6 and Ly5.2 expressed in SJL strains (Komura et al. 1975), this was subsequently expanded to include a third allele encoding Ly5.3 (Shen et al. 1986). Further, in 1987 a reversal of nomenclature was instigated resulting in the allele in C57bl/6 becoming Ly5b encoding Ly5.2 and the allele in SJL mice becoming Ly5a encoding Ly5.1 (Morse et al. 1987). Further changes were made in 1992 with Ly5.1 becoming CD45.1 (SJL) and Ly5.2 becoming CD45.2 (C57bl/6). Finally, following work demonstrating homology between the CD45 antigen and a receptor linked protein tyrosine phosphatase the CD45a gene was renamed Ptprca and CD45b renamed Ptprcb (Charbonneau et al. 1988; Zebedee et al. 1991).A number of different isoforms of CD45 are expressed on murine leucocytes depending on the pattern of alternative splicing of 3 exons termed A, B and C encoding regions of ~ 50 amino acids located at the N terminal region of the extracellular portion of CD45. The restricted proteins are termed CD45R with a designation depending on the expressed codon product. (Birkeland et al. 1989).Rat anti mouse CD45 antibody, clone YW62.3 is reactive with all isoforms of murine CD45.N.B. Some reactivity with human tissue has been observed.

B220, CD 45, CD45 antigen, CD45R, GP180, L-CA, LCA, Leukocyte common antigen, loc, Ly-5, LY5, Ly5, homolog of, Lyt-4, OTTHUMP00000033813, OTTHUMP00000033816, OTTHUMP00000033817, OTTHUMP00000038574, Protein tyrosine phosphatase receptor type c polypeptide, Protein tyrosine phosphatase, receptor type C, protein tyrosine phosphatase, receptor type, C, Protein tyrosine phosphatase, receptor type, c polypeptide, Ptprc, PTPRC_HUMAN, Receptor-type tyrosine-protein phosphatase C, T200, T200 glycoprotein, T200 leukocyte common antigen

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