HLA-DPB1 (P04440) variants and mutations

HLA-DPB1 (also known as P04440) is a human protein-coding gene encoding a HLA class II histocompatibility antigen, DP beta 1 chain protein. It pairs with HLA-DPA1 to shape the peptide-binding groove used for antigen presentation to CD4 T cells. Extensive polymorphism strongly influences immune recognition and is clinically important in transplantation, autoimmune disease, infection, and selected drug hypersensitivities. This analysis covers 585 HLA-DPB1 variants and mutations. Of these, 83% have computational variant effect predictions. Disease context includes type 1 diabetes mellitus, rheumatoid arthritis, and systemic sclerosis. Example HLA-DPB1 variants include M1?, M2I, and M2T.

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-DPB1 variants

Examples include M1?, M2I, M2T, M2V, V3A, V3I, V3L, L4C. Listed records include available protein-change notation, database identifiers, clinical classifications, computational predictions, population evidence, experimental measurements, and disease context.