HLA class II histocompatibility antigen, DQ alpha 1 chain is a protein in humans that is encoded by HLA-DQA1 gene. Binds peptides derived from antigens that access the endocytic route of antigen presenting cells (APC) and presents them on the cell surface for recognition by the CD4 T-cells. The peptide binding cleft accommodates peptides of 10-30 residues. The peptides presented by MHC class II molecules are generated mostly by degradation of proteins that access the endocytic route, where they are processed by lysosomal proteases and other hydrolases. Exogenous antigens that have been endocytosed by the APC are thus readily available for presentation via MHC II molecules, and for this reason this antigen presentation pathway is usually referred to as exogenous.
HLA-DQA1 Antibodies for Homo sapiens (Human)
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HLA-DQA1 Proteins for Homo sapiens (Human)
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