CD244 (Cluster of Differentiation 244) is a human protein encoded by the CD244gene.[1] It is also known as Natural Killer Cell Receptor 2B4[2]
This gene encodes a cell surface receptor expressed on natural killer cells (NK cells) (and some T cells) mediating non-major histocompatibility complex (MHC) restricted killing. The interaction between NK-cell and target cells via this receptor is thought to modulate NK-cell cytolytic activity. Alternatively spliced transcript variants encoding different isoforms have been found for this gene.[3]
CD244 can also be expressed on non-lymphocytes such as eosinophils, mast cells and dendritic cells.[4]
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Chuang SS, Pham HT, Kumaresan PR, Mathew PA (2001). "A prominent role for activator protein-1 in the transcription of the human 2B4 (CD244) gene in NK cells". J. Immunol. 166 (10): 6188–95. doi:10.4049/jimmunol.166.10.6188. PMID11342640.
Morra M, Simarro-Grande M, Martin M, et al. (2001). "Characterization of SH2D1A missense mutations identified in X-linked lymphoproliferative disease patients". J. Biol. Chem. 276 (39): 36809–16. doi:10.1074/jbc.M101305200. PMID11477068.
Speiser DE, Colonna M, Ayyoub M, et al. (2002). "The activatory receptor 2B4 is expressed in vivo by human CD8+ effector alpha beta T cells". J. Immunol. 167 (11): 6165–70. doi:10.4049/jimmunol.167.11.6165. PMID11714776.
Chuang SS, Kumaresan PR, Mathew PA (2002). "2B4 (CD244)-mediated activation of cytotoxicity and IFN-gamma release in human NK cells involves distinct pathways". J. Immunol. 167 (11): 6210–6. doi:10.4049/jimmunol.167.11.6210. PMID11714782.
Bottino C, Parolini S, Biassoni R, et al. (2002). "X-linked lymphoproliferative disease: the dark side of 2b4 function". Adv. Exp. Med. Biol. 495: 63–7. doi:10.1007/978-1-4615-0685-0_9. PMID11774610.
Aoukaty A, Tan R (2002). "Association of the X-linked lymphoproliferative disease gene product SAP/SH2D1A with 2B4, a natural killer cell-activating molecule, is dependent on phosphoinositide 3-kinase". J. Biol. Chem. 277 (15): 13331–7. doi:10.1074/jbc.M112029200. PMID11815622.
Assarsson E, Kambayshi T, Persson C, et al. (2005). "2B4 co-stimulation: NK cells and their control of adaptive immune responses". Mol.Immunol. 42 (4): 419–23. doi:10.1016/j.molimm.2004.07.021. PMID15607793.