CD314 (NKG2D) Antibodies

CD314, also known as NKG2D, is a 42 kDa type II transmembrane protein belonging to the C-type lectin superfamily. The name NKG2D may be misleading as it is not a typical NKG2 family member. It has low homology with the other members and dimerizes with itself to form a homodimer while other members dimerize with CD94. The surface expression of NKG2D requires association with a signaling adaptor protein, a KAP10 (DAP10) homodimer that contains a Y-x-x-M motif. Upon tyrosine phosphorylation, that motif recruits and activates phosphatidylinositol 3’ (PI 3)-kinase. Unlike natural cytotoxicity receptors (NCRs), NKG2D is not only expressed by all NK cells but also by most γδ T cells and by virtually all CD8+αβ T cells. In addition, its expression can be up-regulated on NK cells by different cytokines (IL-15, IL -12 and IFN-γ). Human CD314 ligands identified so far are MICA and MICB, stress-inducible and broadly expressed molecules on tumors of epithelial origin, some melanomas, and ULBPs, targets of the human CMV protein, expressed on a wide range of cells. NKG2D triggering would appear to overrule the inhibitory signals delivered by the KIR and HLA class 1 interactions. NKG2D might play a complementary role in the NK-cell mediated lysis of target cells that appear to express HLA class I molecules normally and that express one or more NKG2D-specific ligands.

Clone: ON72 Isotype: IgG1 Mouse

The ON72 antibody has been used in flow cytometry to analyze the expression of NKG2D on NK cells.

Explore CD314 Antibodies

Content and Resources

CD chart For identification of cell surface molecules
Immunophenotyping reference table - For haematopoietic malignancies Poster - Immunophenotyping reference table - For haematopoietic malignancies
How do I preserve sensitivity? Poster - How to preserve sensitivity