PTGER4 (Prostaglandin E Receptor 4): PTGER4 is a gene that encodes a receptor for prostaglandin E2 (PGE2), a lipid mediator involved in inflammation and immune responses. PTGER4 activation influences various cellular functions, including immune cell activation and cytokine production. It plays a role in modulating inflammation and has been studied in the context of autoimmune and inflammatory diseases....