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Mesenchymal stem cells (MSCs) have been recently shown to inhibit T-cell proliferation to polyclonal stimuli. We characterized… Expand Group A streptococci are model extracellular gram-positive pathogens responsible for pharyngitis, impetigo, rheumatic fever, and… Expand Class I–restricted presentation is usually associated with cytoplasmic degradation of cellular proteins and is often considered… Expand Class II and class I histocompatibility molecules allow T cells to recognize 'processed' polypeptide antigens15. The two… Expand Discriminant analysis can be used to precisely classify membrane proteins as integral or peripheral and to estimate the odds that… Expand We have found markedly deficient expression of the class I major histocompatibility antigens HLA-A,B,C and beta 2m on human small… Expand Rat cells transformed by the highly oncogenic adenovirus 12 lack at least two cellular proteins which are present in cells… Expand A method is presented for locating protein antigenic determinants by analyzing amino acid sequences in order to find the point of… Expand FUSION between myeloma cells and spleen cells from immunised donors has been shown to be a successful method of deriving… Expand A central function of the major histo-compatibility (H) antigens may be to signal changes in self to the immune system. Virus… Expand