ORMDL3 (ORMDL Sphingolipid Biosynthesis Regulator 3): ORMDL3 is a gene that controls the production of sphingolipids, essential components of cell membranes and signaling pathways. It helps regulate lipid balance within cells and affects inflammatory responses. Variations in ORMDL3 have been associated with an increased risk of asthma and allergic conditions, highlighting its role in immune regulation and inflammation.