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Major histocompatibility complex (MHC) research products include peptide antigens that MHC molecules present to T cells. Class I molecules display peptides from cytosolic proteins to cytotoxic T cells, whereas class II molecules present to helper T cells. In 1974 virus-specific T cell killing was shown to require a shared MHC haplotype, known as MHC restriction. The 1987 crystal structure of human leukocyte antigen A2 (HLA-A2) revealed a peptide-binding groove between two α-helices. The chicken ovalbumin (OVA) epitope SIINFEKL is offered as OVA Peptide(257-264) TFA, a trifluoroacetate salt. It binds the mouse class I molecule H-2Kb and is used to stimulate ovalbumin-specific cytotoxic T cells. OVA (55-62) is a second ovalbumin peptide presented by H-2Kb in mouse T cell studies.
ELTLGEFLKL is a survivin-derived peptide that functions as a stabilizer of HLA-A*0201. This peptide demonstrates significant enhancement of HLA-A*0201 stability, making it a valuable tool in the study of tumor immunotherapy. ELTLGEFLKL can be employed in research focused on optimizing immune responses against cancer through modulation of peptide-MHC interactions.
1,10-Decanediol is a diol compound that interacts with α-ketoglutarate (aKG) to form polymeric microparticles (paKG MPs) for the controlled release of aKG, facilitating immunosuppressive responses. These microparticles can engage dendritic cells (DCs), leading to decreased glycolysis and mitochondrial respiration, which subsequently modulate MHC-II and CD86 expression in DCs and influence the proportions of regulatory T cells (Tregs) and various T-helper cell subsets in vitro. This compound serves as a valuable tool in immunometabolism research and functions as a surfactant/stabilizer in nanomaterial synthesis.
