IL2RG (P31785) variants and mutations

IL2RG (also known as P31785) is a human protein-coding gene encoding a cytokine receptor common subunit gamma protein. It is the shared signaling chain used by receptors for several interleukins required for lymphocyte development and survival. Loss-of-function variants cause X-linked severe combined immunodeficiency with profound T-cell and natural-killer-cell deficiency. This analysis covers 591 IL2RG variants and mutations. Of these, 76% have computational variant effect predictions. Disease context includes T-B+ severe combined immunodeficiency due to gamma chain deficiency, combined immunodeficiency, X-linked, and Omenn syndrome. Example IL2RG variants include M1T, K3N, and K3*.

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 IL2RG variants

Examples include M1T, K3N, K3*, P4L, L6S, T9I, L11F, L11H. Listed records include available protein-change notation, database identifiers, clinical classifications, computational predictions, population evidence, experimental measurements, and disease context.