PLCG2 (Phospholipase C Gamma 2): PLCG2 is a gene that plays a crucial role in intracellular signaling pathways, especially in immune cells. It is involved in the hydrolysis of phosphatidylinositol 4,5-bisphosphate, an important step in activating the protein kinase C pathway. Mutations in PLCG2 have been linked to immune-related disorders and are studied in relation to autoinflammatory diseases.