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2B4 / CD244  ELISA Kit

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2B4 / CD244 ELISA Kit

2B4 / CD244 Related Area

2B4 / CD244 Related Pathways

    2B4 / CD244 Related Protein, Antibody, cDNA Gene, and ELISA Kits

    2B4 / CD244 Related Protein, Antibody, cDNA Gene, and ELISA Kits

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    2B4 / CD244 Summary & Protein Information

    2B4 / CD244 Background

    Gene Summary: This gene encodes a cell surface receptor expressed on natural killer (NK) cells (and some T cells) that mediate 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.
    General information above from NCBI
    Subunit structure: Interacts with CD48. Following phosphorylation, it is able to recruit PTPN11/SHP-2 and SH2D1A/SAP. Binding of SH2D1A/SAP to CD244 prevents its association with PTPN11/SHP-2. {ECO:0000269|PubMed:10359122, ECO:0000269|PubMed:10458320, ECO:0000269|PubMed:10556801}.
    Subcellular location: Membrane {ECO:0000305}; Single-pass type I membrane protein {ECO:0000305}.
    Tissue specificity: Expressed in spleen, PBL, followed by lung, liver, testis and small intestine. Expressed not only in NK cells, but also on monocytes and basophils. {ECO:0000269|PubMed:10556801}.
    Post-translational: N-linked glycosylation is essential for the binding to its ligand CD48. Also O-glycosylated, in contrast, O-linked sialylation has a negative impact on ligand binding. {ECO:0000269|PubMed:21606496}.
    Sequence similarity: Contains 2 Ig-like (immunoglobulin-like) domains. {ECO:0000305}.
    General information above from UniProt

    The CD244 antigen, also known as 2B4, is a cell surface glycoprotein implicated in the regulation of natural killer and T lymphocyte function. 2B4 is a member of the signaling lymphocyte activation molecule (SLAM)-related receptor family and is important for stimulating NK cell cytotoxicity and cytokine production, which is expressed on all NK cells, a subpopulation of T cells, monocytes and basophils. The 2B4 antigen identified on NK cells and T cells is capable of transmitting stimulatory signals and non-MHC-restricted killing. Reported as an activating receptor, human 2B4 can effectively activate and enhance NK cell–mediated cytotoxicity, induce secretion of IFN-γ and matrix metalloproteinases (MMPs), as well as NK cell invasiveness. As a cell surface glycoprotein of the Ig-superfamily structurally related to CD2-like molecules such as CD2, CD48, CD58, CD84, Ly-9, and SLAM, 2B4 (CD244) is expressed on all human NK cells, a subpopulation of T cells, basophils and monocytes. 2B4 activates NK cell mediated cytotoxicity, induces secretion of IFN-gamma and matrix metalloproteinases, and NK cell invasiveness.

    Immune Checkpoint
    Immune Checkpoint Detection: Antibodies   Immune Checkpoint Detection: ELISA Antibodies   Immune Checkpoint Detection: IP Antibodies   Immune Checkpoint Detection: FCM Antibodies
    Immune Checkpoint Proteins
    Immune Checkpoint Targets   Co-inhibitory Immune Checkpoint Targets

    Immunotherapy   Cancer Immunotherapy   Targeted Therapy

    2B4 / CD244 Alternative Name

    2B4 / CD244 Related Studies

  • Nakajima H, et al. (2000) 2B4: an NK cell activating receptor with unique specificity and signal transduction mechanism. Hum Immunol. 61(1): 39-43.
  • Chuang SS, et al. (2001) 2B4 (CD244)-mediated activation of cytotoxicity and IFN-gamma release in human NK cells involves distinct pathways. J Immunol. 167(11): 6210-6.
  • McNerney ME, et al. (2005) 2B4 (CD244) is a non-MHC binding receptor with multiple functions on natural killer cells and CD8+ T cells. Mol Immunol. 42(4): 489-94.
  • Mathew SO, et al. (2009) Functional role of human NK cell receptor 2B4 (CD244) isoforms. Eur J Immunol. 39(6): 1632-41.
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