Introduction
Prostaglandin E2 receptor 1 (EP1) is encoded by the PTGER1 gene. It is a member of the G protein-coupled receptor family. This protein is one of four receptors identified for prostaglandin E2 (PGE2). Through a phosphatidylinositol-calcium second messenger system, G-Q proteins mediate this receptor's activity. Knockout studies in mice suggested a role of this receptor in mediating algesia and in regulation of blood pressure. Studies in mice also suggested that this gene may mediate adrenocorticotropic hormone response to bacterial endotoxin. [provided by RefSeq, Jul 2008]

Direction of Drugs Discovery
• PTGER1 Agonist
• PTGER1 Antagonist
• PTGER1 Modulator
• Developing New Clinical Effects on PTGER1 from Existing Drugs

Drugs
• PTGER1 Agonist- PGF2alpha, 17-phenyl-omega-trinor-PGE2, carbacyclin
• PTGER1 Antagonist- BUTAPROST, ZD6416, ZD6416
• PTGER1 Modulator- ONO-8130, ONO-8130, ZM 325802