IL2RA (P01589) variants and mutations

IL2RA (also known as P01589) is a human protein-coding gene encoding an interleukin-2 receptor subunit alpha protein. It contributes to the high-affinity IL-2 receptor on activated T cells and regulatory T cells, supporting lymphocyte proliferation and immune tolerance. Loss-of-function variants can cause immunodeficiency with autoimmunity, while abnormal expression is therapeutically targeted in selected immune disorders. This analysis covers 506 IL2RA variants and mutations. Of these, 80% have computational variant effect predictions. Disease context includes immunodeficiency due to CD25 deficiency, multiple sclerosis, and type 1 diabetes mellitus. Example IL2RA variants include M1?, M1L, and D2E.

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, ClinGen, MaveDB, LitVar.

Notable IL2RA variants

Examples include M1?, M1L, D2E, D2Y, S3*, S3L, Y4*, Y4H. Listed records include available protein-change notation, database identifiers, clinical classifications, computational predictions, population evidence, experimental measurements, and disease context.