KEGG results show that the “yellow” module genes are mainly enriched in Primary immunodeficiency, Antigen processing and presentation, Cell adhesion molecules, Chemokine signaling pathway, Phagosome, Intestinal immune network for IgA production, Inflammatory bowel disease, B cell receptor signaling pathway, Th17 cell Differentiation, NF−kappa B signaling pathway, Natural killer cell mediated cytotoxicity, Th1 and Th2 cell differentiation, Cytokine−cytokine receptor interaction and other functions and pathways (Figure S1). The gene discussed is CD79A; the disease is inborn error of immunity.