LPIN2 (Lipin 2): LPIN2 is essential for lipid metabolism and energy production, playing a key role in converting phosphatidic acid into diacylglycerol, a critical step in the synthesis of triglycerides and phospholipids. It also participates in regulating gene expression related to lipid metabolism and inflammation. Mutations in LPIN2 are linked to Majeed syndrome, which is characterised by chronic recurrent multifocal osteomyelitis, dermatitis, and dyserythropoietic anaemia, underscoring its significance in both metabolic functions and immune regulation.