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Please note: We are reviewing Western blot images included in the antibody testing data in our catalog, including those provided by third parties. Unless expressly labeled or annotated as “raw-unedited”, Western blot images included in the antibody testing data in our catalog may have been edited, optimized or otherwise adjusted for presentation.
HLA-DQA1, HLA-DPA1, and HLA-DRB1 encode key alpha and beta chain components of the human leukocyte antigen (HLA) class II system, which presents extracellularly derived peptides to CD4+ T helper cells and orchestrates adaptive immune responses. HLA-DQA1 pairs with HLA-DQB1 to form HLA-DQ, HLA-DPA1 pairs with HLA-DPB1 to form HLA-DP, and HLA-DRB1 pairs with HLA-DRA to form HLA-DR; among these, HLA-DRB1 is the most polymorphic class II gene and a major determinant of peptide-binding specificity. Extensive allelic diversity across these loci underlies interindividual variation in antigen presentation, influences susceptibility to autoimmune diseases (e.g., type 1 diabetes, celiac disease, rheumatoid arthritis), infection outcomes, and responses to vaccines, and is central to donor-recipient matching in transplantation. Expression is predominantly on professional antigen-presenting cells (dendritic cells, B cells, macrophages) and is induced by interferon-y via the CIITA transactivator. Structural variation and specific epitope motifs (such as the DRB1 "shared epitope") modulate T-cell tolerance and pathogenic T-cell activation, while linkage disequilibrium across the class II region forms common haplotypes with combined functional effects.
仅用于科研。不用于诊断过程。未经明确授权不得转售。
蛋白别名: DC-1 alpha chain; DC-alpha; DP(W3); DP(W4); DP-A1; DQ-A1; DR-B1; HLA class II histocompatibility antigen, DP alpha 1 chain; HLA class II histocompatibility antigen, DQ alpha 1 chain; HLA class II histocompatibility antigen, DRB1 beta chain; HLA-DCA; HLA-DP alpha 1; HLA-DQ alpha 1; HLA-DR beta 1; HLA-DRB1; HLA-SB alpha chain; Human leukocyte antigen DRB1; MHC class II DP3-alpha; MHC class II DPA1; MHC class II DQA1
基因别名: HLA-DP1A; HLA-DPA1; HLA-DQA1; HLA-DRB1; HLASB
Entrez Gene ID: (Human) 3113, (Human) 3117, (Human) 3123