Prostaglandin E synthase

Definition:

Terminal enzyme of the cyclooxygenase (COX)-2-mediated prostaglandin E2 (PGE2) biosynthetic pathway. Catalyzes the glutathione-dependent oxidoreduction of prostaglandin endoperoxide H2 (PGH2) to prostaglandin E2 (PGE2) in response to inflammatory stimuli. Plays a key role in inflammation response, fever and pain (By similarity). Catalyzes also the oxidoreduction of endocannabinoids into prostaglandin glycerol esters and PGG2 into 15-hydroperoxy-PGE2. In addition, displays low glutathione transferase and glutathione-dependent peroxidase activities, toward 1-chloro-2,4-dinitrobenzene and 5-hydroperoxyicosatetraenoic acid (5-HPETE), respectively.

References:

[1]. Marc Ouellet, et al. Purification and characterization of recombinant microsomal prostaglandin E synthase-1. Protein Expr Purif. 2002 Dec;26(3):489-95. [Content Brief]

[2]. Caroline Jegerschöld, et al. Structural basis for induced formation of the inflammatory mediator prostaglandin E2. Proc Natl Acad Sci U S A. 2008 Aug 12;105(32):11110-5. [Content Brief]

[3]. Staffan Thorén, et al. Human microsomal prostaglandin E synthase-1: purification, functional characterization, and projection structure determination. J Biol Chem. 2003 Jun 20;278(25):22199-209. [Content Brief]

[4]. M Murakami, et al. Regulation of prostaglandin E2 biosynthesis by inducible membrane-associated prostaglandin E2 synthase that acts in concert with cyclooxygenase-2. J Biol Chem. 2000 Oct 20;275(42):32783-92. [Content Brief]

[5]. Kevin R Kozak, et al. Metabolism of the endocannabinoids, 2-arachidonylglycerol and anandamide, into prostaglandin, thromboxane, and prostacyclin glycerol esters and ethanolamides. J Biol Chem. 2002 Nov 22;277(47):44877-85. [Content Brief]

[6]. P J Jakobsson, et al. Identification of human prostaglandin E synthase: a microsomal, glutathione-dependent, inducible enzyme, constituting a potential novel drug target. Proc Natl Acad Sci U S A. 1999 Jun 22;96(13):7220-5. [Content Brief]

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