KEGG: Cytokine−cytokine receptor interaction, Chemokine signaling pathway, Viral protein interaction with cytokine and cytokine receptor, Hematopoietic cell lineage, Cell adhesion molecules, T cell receptor signaling pathway, Natural killer cell mediated cytotoxicity, Th17 cell differentiation, Primary immunodeficiency, Intestinal immune network for IgA production (Figure 4C). The gene discussed is CD79A; the disease is inborn error of immunity.