The antibody MEM-E/07 recognizes an extracellular epitope on native surface-expressed HLA-E, but not denaturated heavy chain of HLA-E. HLA-E belongs to the MHC Class I molecules (MHC Class Ib, nonclassical) and it is expressed on many types of the human cells. The published results revealed that the antibody cross-reacts with some classical MHC Class I molecules (MHC Class Ia): HLA-B7 (strongly), HLA-B8 (moderately), HLA-B27, -B44 (weakly).
Kreuzreaktivität (Details)
Human
Aufreinigung
Purified antibody is conjugated with biotin LC-NHS ester under optimum conditions and unconjugated antibody and free biotin are removed by size-exclusion chromatography.
Immunogen
Bacterially expressed recombinant HLA-E refolded with beta2-microglobulin and peptide.
Lo Monaco, Tremante, Cerboni, Melucci, Sibilio, Zingoni, Nicotra, Natali, Giacomini: "Human leukocyte antigen E contributes to protect tumor cells from lysis by natural killer cells." in: Neoplasia (New York, N.Y.), Vol. 13, Issue 9, pp. 822-30, (2011) (PubMed).
Target
HLA-E
(HLA Class I Histocompatibility Antigen, alpha Chain E (HLA-E))
Major histocompatibility complex, class I, E,HLA-E (human leukocyte antigen E) is a non-classical MHC I antigen, which is important for dialogue with NK cells and their regulation through interaction with CD94/NKG2 receptor. Like other MHC I molecules, transmembrane HLA-E molecule (45 kDa) associates with beta2 microglobulin. Unlike HLA-G, expression of HLA-E molecules is not so restricted, but it has been detected at least at mRNA level in virtually all cells and tissues examined. In peripheral blood, HLA-E protein is expressed at least in all mononuclear cells, but in different quantity (B cells and monocytes more than T cells and NK cells).,HLA class I histocompatibility antigen, alpha chain E, MHC class I antigen E