منابع مشابه
Organizing MHC Class II Presentation
Major histocompatibility complex (MHC) class II molecules are ligands for CD4(+) T cells and are critical for initiating the adaptive immune response. This review is focused on what is currently known about MHC class II organization at the plasma membrane of antigen presenting cells and how this affects antigen presentation to T cells. The organization and diffusion of class II molecules have b...
متن کاملMajor Histocompatibility Complex (MHC) Class I and MHC Class II Proteins: Conformational Plasticity in Antigen Presentation
Antigen presentation by major histocompatibility complex (MHC) proteins is essential for adaptive immunity. Prior to presentation, peptides need to be generated from proteins that are either produced by the cell's own translational machinery or that are funneled into the endo-lysosomal vesicular system. The prolonged interaction between a T cell receptor and specific pMHC complexes, after an ex...
متن کاملMHC Class II Auto-Antigen Presentation is Unconventional
Antigen presentation is highly critical in adoptive immunity. Only by interacting with antigens presented by major histocompatibility complex class II molecules, helper T cells can be stimulated to fight infections or diseases. The degradation of a full protein into small peptide fragments bound to class II molecules is a dynamic, lengthy process consisting of many steps and chaperons. Deregula...
متن کاملSelection of proteins for human MHC class II presentation.
We investigated the predicted function of proteins eluded from human MHC class II molecules. Peptides that are presented by MHC class II were obtained from the SYFPEITHI database and the corresponding proteins were found in the SWISSPROT database. The functions of these proteins were predicted using the protfun server. Our analysis showed that human proteins presented by MHC class II molecules ...
متن کاملAntigen Processing for MHC Class II Presentation via Autophagy
T cells recognize proteolytic fragments of antigens that are presented to them on major histocompatibility complex (MHC) molecules. MHC class I molecules present primarily products of proteasomal proteolysis to CD8(+) T cells, while MHC class II molecules display mainly degradation products of lysosomes for stimulation of CD4(+) T cells. Macroautophagy delivers intracellular proteins to lysosom...
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ژورنال
عنوان ژورنال: Frontiers in Immunology
سال: 2014
ISSN: 1664-3224
DOI: 10.3389/fimmu.2014.00158