The protein encoded by this gene is a glutathione-dependent prostaglandin E synthase. The expression of this gene has been shown to be induced by proinflammatory cytokine interleukin 1 beta (IL1B). Its expression can also be induced by tumor suppressor protein TP53, and may be involved in TP53 induced apoptosis. Knockout studies in mice suggest that this gene may contribute to the pathogenesis of collagen-induced arthritis and mediate acute pain during inflammatory responses.PTGES (Prostaglandin E Synthase) is a Protein Coding gene. Diseases associated with PTGES include Arthritis and Necrotizing Ulcerative Gingivitis. Among its related pathways are Ibuprofen Pathway, Pharmacodynamics and Arachidonic acid metabolism. GO annotations related to this gene include glutathione binding and prostaglandin-E synthase activity. An important paralog of this gene is MGST1.