HLA-DQB1 (P01920) variants and mutations

HLA-DQB1 (also known as P01920) is a human protein-coding gene encoding a HLA class II histocompatibility antigen, DQ beta 1 chain protein. It pairs with an HLA-DQ alpha chain to present extracellular peptides to CD4 T cells. Specific alleles and haplotypes have major effects on autoimmune susceptibility, including type 1 diabetes and celiac disease, and on immune responses to environmental antigens. This analysis covers 133 HLA-DQB1 variants and mutations. Of these, 89% have computational variant effect predictions. Disease context includes neoplasm, hepatocellular carcinoma, and rosacea. Example HLA-DQB1 variants include A6S, G12D, and A15V.

Variant analysis overview

Variant and mutation evidence

Clinical, disease, and population context

Protein structure and variant hotspots

Data sources

Evidence in this analysis draws on EBI Proteins Variation, UniProt, gnomAD v4, EuropePMC, 3D Hotspot Analysis, Interaction Network Analysis, Protein Data Bank, AlphaFold DB, gnomAD constraint, Open Targets, MaveDB, LitVar.

Notable HLA-DQB1 variants

Examples include A6S, G12D, A15V, A23S, M24I, T27A, T27S, P28L. Listed records include available protein-change notation, database identifiers, clinical classifications, computational predictions, population evidence, experimental measurements, and disease context.