FITC Hamster Anti-Mouse CD3e(145-2C11)

FITC

CD3E

Armenian Hamster IgG1, κ

H-2Kb specific cytotoxic T lymphocyte clone BM10-37

The 145-2C11 monoclonal antibody specifically binds to the 25-kDa ε chain of the T-cell receptor-associated CD3 complex that is expressed on thymocytes, mature T lymphocytes, and NK-T cells. The cytoplasmic domain of CD3e participates in the signal transduction events that activate several cellular biochemical pathways as a result of antigen recognition. Soluble 145-2C11 antibody can activate either unprimed (naive) or primed (memory/preactivated) T cells in vivo or in vitro , in the presence of Fc receptor-bearing accessory cells.  In contrast, plate-bound 145-2C11 can activate T cells in the absence of accessory cells. Soluble 145-2C11 antibody has been reported to induce re-directed lysis of Fc receptor-bearing target cells by CTL clones and can also block lysis of specific target cells by antigen-specific CTL's. Under some conditions, T-cell activation by 145-2C11 antibody has been reported to result in apoptotic cell death. The 145-2C11 antibody does not cross-react with rat leukocytes. Preincubation of thymus cell suspensions at 37°C for 2-4 hours prior to staining reportedly enhances the ability of anti-CD3ε and anti-αβ TCR mAbs to detect the T-cell receptor on immature thymocytes.

The 145-2C11 monoclonal antibody specifically binds to the 25-kDa ε chain of the T-cell receptor-associated CD3 complex that is expressed on thymocytes, mature T lymphocytes, and NK-T cells. The cytoplasmic domain of CD3e participates in the signal transduction events that activate several cellular biochemical pathways as a result of antigen recognition. Soluble 145-2C11 antibody can activate either unprimed (naive) or primed (memory/preactivated) T cells in vivo or in vitro , in the presence of Fc receptor-bearing accessory cells.  In contrast, plate-bound 145-2C11 can activate T cells in the absence of accessory cells. Soluble 145-2C11 antibody has been reported to induce re-directed lysis of Fc receptor-bearing target cells by CTL clones and can also block lysis of specific target cells by antigen-specific CTL"s. Under some conditions, T-cell activation by 145-2C11 antibody has been reported to result in apoptotic cell death. The 145-2C11 antibody does not cross-react with rat leukocytes. Preincubation of thymus cell suspensions at 37°C for 2-4 hours prior to staining reportedly enhances the ability of anti-CD3ε and anti-αβ TCR mAbs to detect the T-cell receptor on immature thymocytes.

Armenian Hamster IgG1, κ

145-2C11

0.5 mg/ml

Flow cytometry (Routinely Tested) Fluorescence microscopy (Reported)

Mouse (QC Testing)

CD3; CD3 epsilon; Cd3e; CD3ε; T3e

Aqueous buffered solution containing protein stabilizer and ≤0.09% sodium azide.

研发参考(15) 1. Castro JE, Listman JA, Jacobson BA, et al. Fas modulation of apoptosis during negative selection of thymocytes. Immunity. 1996; 5(6):617-627. (Clone-specific: Activation, Apoptosis). 2. Duke RC, Cohen JJ, Boehme SA, et al. Morphological, biochemical, and flow cytometric assays of apoptosis. In: Coligan J, Kruisbeek AM, Margulies D, Shevach EM, Strober W, ed. Current Protocols in Immunology. New York: John Wiley and Sons; 1995:3.17.1-3.17.33. 3. Ernst DN, Weigle WO, McQuitty DN, Rothermel AL, Hobbs MV. Stimulation of murine T cell subsets with anti-CD3 antibody. Age-related defects in the expression of early activation molecules. J Immunol. 1989; 142(5):1413-1421. (Clone-specific: Activation, Functional assay, Stimulation). 4. Fagarasan S, Muramatsu M, Suzuki K, Nagaoka H, Hiai H, Honjo T. Critical roles of activation-induced cytidine deaminase in the homeostasis of gut flora. Science. 2002; 298(5597):1424-1427. (Biology: Fluorescence microscopy, Immunofluorescence). 5. Isakov N, Wange RL, Burgess WH, Watts JD, Aebersold R, Samelson LE. ZAP-70 binding specificity to T cell receptor tyrosine-based activation motifs: the tandem SH2 domains of ZAP-70 bind distinct tyrosine-based activation motifs with varying affinity. J Exp Med. 1995; 181(1):375-380. (Biology: Immunoprecipitation). 6. Kruisbeek AM, Shevach EM. Proliferative assays for T cell function. Curr Protoc Immunol. 2004; 3:3.12.1-3.12.14. (Methodology: Activation, Stimulation). 7. Kubo RT, Born W, Kappler JW, Marrack P, Pigeon M. Characterization of a monoclonal antibody which detects all murine alpha beta T cell receptors. J Immunol. 1989; 142(8):2736-2742. (Biology). 8. Leo O, Foo M, Sachs DH, Samelson LE, Bluestone JA. Identification of a monoclonal antibody specific for a murine T3 polypeptide. Proc Natl Acad Sci U S A. 1987; 84(5):1374-1378. (Immunogen: Blocking, Cytotoxicity, Immunoprecipitation, Stimulation). 9. Nakano H, Yamazaki T, Miyatake S, Nozaki N, Kikuchi A, Saito T. Specific interaction of topoisomerase II beta and the CD3 epsilon chain of the T cell receptor complex. J Biol Chem. 1996; 271(11):6483-6489. (Biology: Immunoprecipitation). 10. Portoles P, Rojo J, Golby A, et al . Monoclonal antibodies to murine CD3 epsilon define distinct epitopes, one of which may interact with CD4 during T cell activation. J Immunol. 1989; 142(12):4169-4175. (Biology: Activation, Immunoprecipitation, Stimulation). 11. Radvanyi LG, Mills GB, Miller RG. Religation of the T cell receptor after primary activation of mature T cells inhibits proliferation and induces apoptotic cell death. J Immunol. 1993; 150(12):5704-5715. (Clone-specific: Activation, Apoptosis). 12. Salvadori S, Gansbacher B, Pizzimenti AM, Zier KS. Abnormal signal transduction by T cells of mice with parental tumors is not seen in mice bearing IL-2-secreting tumors. J Immunol. 1994; 153(11):5176-5182. (Clone-specific: Activation, Calcium Flux, Flow cytometry, Western blot). 13. Shinkai Y, Alt FW. CD3 epsilon-mediated signals rescue the development of CD4+CD8+ thymocytes in RAG-2-/- mice in the absence of TCR beta chain expression. Int Immunol. 1994; 6(7):995-1001. (Biology: Activation, Stimulation). 14. Ucker DS, Meyers J, Obermiller PS. Activation-driven T cell death. II. Quantitative differences alone distinguish stimuli triggering nontransformed T cell proliferation or death. J Immunol. 1992; 149(5):1583-1592. (Clone-specific: Activation, Apoptosis). 15. Wang R, Murphy KM, Loh DY, Weaver C, Russell JH. Differential activation of antigen-stimulated suicide and cytokine production pathways in CD4+ T cells is regulated by the antigen-presenting cell. J Immunol. 1993; 150(9):3832-3842. (Clone-specific: Activation, Apoptosis).

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