Gene set enrichment analysis (GSEA) revealed that FcεR1γ-deficient ILC3s exhibited reduced expression of genes enriched in multiple immune activation pathways, including cytokine-cytokine receptor interaction, JAK-STAT signaling and chemokine signaling pathways (Supplementary Fig. S5F), all of which were induced by the infection in WT ILC3s (Supplementary Fig. S4F, G). Here, FCER1G is linked to infection.