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Two-color analysis of CD244.2 expression on LAK cells. C57BL/6 LAK cells were simultaneously stained with FITC-conjugated PK136 (anti-mouse NK-1.1, Cat. No. 553164, both panels) and PE-conjugated 2B4 (right panel) monoclonal antibodies. Flow cytometry was performed on a BD FACScan™ System (BD Biosciences, San Jose, CA).
BD Pharmingen™ PE Mouse Anti-Mouse CD244.2
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Preparation And Storage
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- Since applications vary, each investigator should titrate the reagent to obtain optimal results.
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CD244 is a type I transmembrane glycoprotein that is also known as Natural killer cell receptor 2B4 (NKR2B4), or Signaling lymphocytic activation molecule 4 (SLAMF4). CD244 is a member of the CD2 subset of the immunoglobulin superfamily (CD2 IgSF). It is expressed on all natural killer (NK) cells, IL-2-activated NK (LAK) cells, committed progenitors of NK cells, and a subset of T lymphocytes which mediate non-MHC-restricted cytoxicity, including dendritic epidermal T cells. The 2B4 monoclonal antibody specifically binds to CD244.2, the 2B4 alloantigen which is expressed on C57BL/6 and C58/J mice, but not in most strains tested (A/J, AKR, BALB/c, CBA/J, CBA/N, C3H/He, C57BR, DBA/1, DBA/2, NZB, SJL/J, 129). At least two isoforms of CD244.2 protein, products of alternative splicing of hnRNA, are expressed on IL-2-activated C57BL/6 NK cells. They differ only in their cytoplasmic domains; with 2B4L (150-aa cytoplasmic tail) having inhibitory activity and 2B4S (93-aa tail) being stimulatory. The extracellular domain of CD244 is a ligand for another CD2 IgSF member, CD48. 2B4 antibody activates lytic and secretory functions of IL-2-cultured NK cells and CD244.2+ T cells.
Development References (13)
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Brown MH, Boles K, van der Merwe PA, Kumar V, Mathew PA, Barclay AN. 2B4, the natural killer and T cell immunoglobulin superfamily surface protein, is a ligand for CD48. J Exp Med. 1998; 188(11):2083-2090. (Biology). View Reference
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Davis SJ, van der Merwe PA. The structure and ligand interactions of CD2: implications for T-cell function. Immunol Today. 1996; 17(4):177-187. (Biology). View Reference
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Garni-Wagner BA, Purohit A, Mathew PA, Bennett M, Kumar V. A novel function-associated molecule related to non-MHC-restricted cytotoxicity mediated by activated natural killer cells and T cells. J Immunol. 1993; 151(1):60-70. (Biology). View Reference
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Kubota K, Katoh H, Muguruma K, Koyama K. Characterization of a surface membrane molecule expressed by natural killer cells in most inbred mouse strains: monoclonal antibody C9.1 identifies an allelic form of the 2B4 antigen. Immunology. 1999; 96(3):491-497. (Biology). View Reference
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Kumaresan PR, Stepp SE, Bennett M, Kumar V, Mathew PA. Molecular cloning of transmembrane and soluble forms of a novel rat natural killer cell receptor related to 2B4. Immunogenetics. 2000; 51(4-5):306-313. (Biology). View Reference
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Latchman Y, McKay PF, Reiser H. Identification of the 2B4 molecule as a counter-receptor for CD48. J Immunol. 1998; 161(11):5809-5812. (Biology). View Reference
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Mathew PA, Garni-Wagner BA, Land K, et al. Cloning and characterization of the 2B4 gene encoding a molecule associated with non-MHC-restricted killing mediated by activated natural killer cells and T cells. J Immunol. 1993; 151(10):5328-5337. (Biology). View Reference
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Rosmaraki EE, Douagi I, Roth C, Colucci F, Cumano A, Di Santo JP. Identification of committed NK cell progenitors in adult murine bone marrow. Eur J Immunol. 2001; 31(6):1900-1909. (Biology). View Reference
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Schatzle JD, Sheu S, Stepp SE, Mathew PA, Bennett M, Kumar V. Characterization of inhibitory and stimulatory forms of the murine natural killer cell receptor 2B4. Proc Natl Acad Sci U S A. 1999; 96(7):3870-3875. (Biology). View Reference
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Schuhmachers G, Ariizumi K, Mathew PA, Bennett M, Kumar V, Takashima A. 2B4, a new member of the immunoglobulin gene superfamily, is expressed on murine dendritic epidermal T cells and plays a functional role in their killing of skin tumors. J Invest Dermatol. 1995; 105(4):592-596. (Biology). View Reference
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Schuhmachers G, Ariizumi K, Mathew PA, Bennett M, Kumar V, Takashima A. Activation of murine epidermal gamma delta T cells through surface 2B4. Eur J Immunol. 1995; 25(4):1117-1120. (Biology). View Reference
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Sentman CL, Hackett J Jr, Moore TA, Tutt MM, Bennett M, Kumar V. Pan natural killer cell monoclonal antibodies and their relationship to the NK1.1 antigen. Hybridoma. 1989; 8(6):605-614. (Immunogen). View Reference
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Stepp SE, Schatzle JD, Bennett M, Kumar V, Mathew PA. Gene structure of the murine NK cell receptor 2B4: presence of two alternatively spliced isoforms with distinct cytoplasmic domains. Eur J Immunol. 1999; 29(8):2392-2399. (Biology). View Reference
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