Prostaglandin E synthase - Misplaced Pages

Prostaglandin E synthase (EC 5.3.99.3, or PGE synthase) is an enzyme involved in eicosanoid and glutathione metabolism, a member of MAPEG family. It generates prostaglandin E (PGE) from prostaglandin H2.

The synthase generating PGE2 is a membrane-associated protein.

Isozymes

Humans express three prostaglandin-E synthase isozymes, each encoded by a separate gene:

prostaglandin E synthase (microsomal)

Identifiers

Symbol

PTGES

Alt. symbols

MGST1L1

Other data

Chr. 9 q34.3

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Structures	Swiss-model
Domains	InterPro

prostaglandin E synthase 2 (microsomal)

Identifiers

Symbol

PTGES2

Alt. symbols

C9orf15

Other data

Chr. 9 q34.12

Search for
Structures	Swiss-model
Domains	InterPro

prostaglandin E synthase 3 (cytosolic)

Identifiers

Symbol

PTGES3

Alt. symbols

p23, TEBP, cPGES

Other data

Chr. 12 q13.13

Search for
Structures	Swiss-model
Domains	InterPro

References

Jegerschold, C.; Pawelzik, S. -C.; Purhonen, P.; Bhakat, P.; Gheorghe, K. R.; Gyobu, N.; Mitsuoka, K.; Morgenstern, R.; Jakobsson, P. -J.; Hebert, H. (2008). "Structural basis for induced formation of the inflammatory mediator prostaglandin E2". Proceedings of the National Academy of Sciences. 105 (32): 11110–11115. Bibcode:2008PNAS..10511110J. doi:10.1073/pnas.0802894105. PMC 2516235. PMID 18682561.
Murakami M, Nakatani Y, Tanioka T, Kudo I (August 2002). "Prostaglandin E synthase". Prostaglandins Other Lipid Mediat. 68–69: 383–99. doi:10.1016/S0090-6980(02)00043-6. PMID 12432931. S2CID 22246484.
Park JY, Pillinger MH, Abramson SB (June 2006). "Prostaglandin E2 synthesis and secretion: the role of PGE2 synthases". Clin. Immunol. 119 (3): 229–40. doi:10.1016/j.clim.2006.01.016. PMID 16540375.

External links

prostaglandin-E+synthase at the U.S. National Library of Medicine Medical Subject Headings (MeSH)
EC 5.3.99.3

v t e Metabolism: lipid metabolism – eicosanoid metabolism enzymes
Precursor	Phospholipase A2 Phospholipase C Diacylglycerol lipase
Prostanoids	Cyclooxygenase PTGS1 PTGS2 PGD2 synthase PGE synthase Prostaglandin-E2 9-reductase PGI2 synthase TXA synthase
Leukotrienes	5-Lipoxygenase activating protein/Arachidonate 5-lipoxygenase LTA4 hydrolase (B4 synthesis) LTC4 synthase Gamma-glutamyl transpeptidase LTD4 hydrolase
Ungrouped	HPGD

Prostanoid signaling modulators

Receptor
(ligands)

DP (D₂)Tooltip Prostaglandin D2 receptor

DP₁Tooltip Prostaglandin D2 receptor 1

Agonists: Prostaglandin D₂
Treprostinil

DP₂Tooltip Prostaglandin D2 receptor 2

Agonists: Indometacin
Prostaglandin D₂

EP (E₂)Tooltip Prostaglandin E2 receptor

EP₁Tooltip Prostaglandin EP1 receptor	Agonists: Beraprost Enprostil Iloprost (ciloprost) Latanoprost Lubiprostone Misoprostol Prostaglandin E₁ (alprostadil) Prostaglandin E₂ (dinoprostone) Sulprostone Antagonists: AH-6809 ONO-8130 SC-19220 SC-51089 SC-51322
EP₂Tooltip Prostaglandin EP2 receptor	Agonists: Butaprost Misoprostol Prostaglandin E₁ (alprostadil) Prostaglandin E₂ (dinoprostone) Treprostinil Antagonists: AH-6809 PF-04418948 TG 4-155
EP₃Tooltip Prostaglandin EP3 receptor	Agonists: Beraprost Carbacyclin Cicaprost Enprostil Iloprost (ciloprost) Isocarbacyclin Latanoprost Misoprostol Prostaglandin D₂ Prostaglandin E₁ (alprostadil) Prostaglandin E₂ (dinoprostone) Remiprostol Ricinoleic acid Sulprostone Antagonists: L-798106
EP₄Tooltip Prostaglandin EP4 receptor	Agonists: Lubiprostone Misoprostol Prostaglandin E₁ (alprostadil) Prostaglandin E₂ (dinoprostone) TCS-2510 Antagonists: Grapiprant GW-627368 L-161982 ONO-AE3-208
Unsorted	Agonists: 16,16-Dimethyl Prostaglandin E₂ Aganepag Carboprost Evatanepag Gemeprost Nocloprost Omidenepag Prostaglandin F_2α (dinoprost) Simenepag Taprenepag

FP (F_2α)Tooltip Prostaglandin F receptor

IP (I₂)Tooltip Prostacyclin receptor

Agonists: ACT-333679
AFP-07
Beraprost
BMY-45778
Carbacyclin
Cicaprost
Iloprost (ciloprost)
Isocarbacyclin
MRE-269
NS-304
Prostacyclin (prostaglandin I₂, epoprostenol)
Prostaglandin E₁ (alprostadil)
Ralinepag
Selexipag
Taprostene
TRA-418
Treprostinil

Antagonists: RO1138452

TP (TX_A2)Tooltip Thromboxane receptor

Agonists: Carbocyclic thromboxane A₂
I-BOP
Thromboxane A₂
U-46619
Vapiprost

Unsorted

Enzyme
(inhibitors)

COX (PTGS)	Salicylic acids: Aloxiprin Aspirin (acetylsalicylic acid) Benorilate (benorylate) Carbasalate calcium Diflunisal Dipyrocetyl Ethenzamide Guacetisal Magnesium salicylate Mesalazine (5-aminosalicylic acid) Methyl salicylate Salacetamide Salicin Salicylamide Salicylate (salicylic acid) Salsalate Sodium salicylate Triflusal; Acetic acids: Aceclofenac Acemetacin Aclofenac Amfenac Alclofenac Bendazac Bromfenac Bufexamac Bumadizone Cinmetacin Clometacin Diclofenac Difenpiramide Etodolac Felbinac Fenclofenac Fentiazac Glucametacin Indometacin (indomethacin) Indometacin farnesil Ketorolac Lonazolac Mofezolac Nabumetone Oxametacin Oxindanac Proglumetacin Sulindac Sulindac sulfide Tolmetin Zidometacin Zomepirac; Propionic acids: Alminoprofen Benoxaprofen Bucloxic acid (blucloxate) Butibufen Carprofen Dexibuprofen Dexindoprofen Dexketoprofen Fenbufen Fenoprofen Flunoxaprofen Flurbiprofen Ibuprofen Ibuproxam Indoprofen Ketoprofen Loxoprofen Miroprofen Naproxen Naproxcinod Oxaprozin Pirprofen Pranoprofen Suprofen Tarenflurbil Tepoxalin Tiaprofenic acid (tiaprofenate) Vedaprofen; Anthranilic acids (fenamic acids): Etofenamic acid (etofenamate) Floctafenic acid (floctafenate) Flufenamic acid (flufenamate) Meclofenamic acid (meclofenamate) Mefenamic acid (mefenamate) Morniflumic acid (morniflumate) Niflumic acid (niflumate) Talinflumic acid (talinflumate) Tolfenamic acid (tolfenamate); Pyrazolones: Azapropazone Dipyrone Isopyrin Oxyphenbutazone Phenylbutazone; Enolic acids (oxicams): Ampiroxicam Droxicam Enolicam Isoxicam Lornoxicam Meloxicam Piroxicam Tenoxicam; 4-Aminoquinolines: Antrafenine Floctafenine Glafenine; Quinazolines: Fluproquazone Proquazone; Aminonicotinic acids: Clonixeril Clonixin Flunixin; Sulfonanilides: Flosulide Nimesulide; Aminophenols (anilines): Acetanilide AM-404 (N-arachidonoylaminophenol) Bucetin Paracetamol (acetaminophen) Parapropamol Phenacetin Propacetamol; Selective COX-2 inhibitors (coxibs): Apricoxib Celecoxib Cimicoxib Deracoxib Etoricoxib Firocoxib Lumiracoxib Mavacoxib Parecoxib Polmacoxib Robenacoxib Rofecoxib Tilmacoxib Valdecoxib; Others/unsorted: Anitrazafen Clobuzarit Curcumin DuP-697 FK-3311 Flumizole FR-122047 Glimepiride Hyperforin Itazigrel L-655240 L-670596 Licofelone Menatetrenone (vitamin K₂) NCX-466 NCX-4040 NS-398 Pamicogrel Resveratrol Romazarit Rosmarinic acid Rutecarpine Satigrel SC-236 SC-560 SC-58125 Tenidap Tiflamizole Timegadine Trifenagrel Tropesin
PGD₂STooltip Prostaglandin D synthase	Retinoids Selenium (selenium tetrachloride, sodium selenite, selenium disulfide)
PGESTooltip Prostaglandin E synthase	HQL-79
PGFSTooltip Prostaglandin F synthase	Bimatoprost
PGI₂STooltip Prostacyclin synthase	Tranylcypromine
TXASTooltip Thromboxane A synthase	Camonagrel Dazmegrel Dazoxiben Furegrelate Isbogrel Midazogrel Nafagrel Nicogrelate Ozagrel Picotamide Pirmagrel Ridogrel Rolafagrel Samixogrel Terbogrel U63557A

Others

See also: Receptor/signaling modulators; Leukotriene signaling modulators

v t e Isomerases: intramolecular oxidoreductases (EC 5.3)
5.3.1: Aldoses/Ketoses	Triosephosphate isomerase Ribose-5-phosphate isomerase Mannose phosphate isomerase Glucose isomerase
5.3.2: Keto/Enol	Phenylpyruvate tautomerase Oxaloacetate tautomerase 4-Oxalocrotonate tautomerase
5.3.3: C = C	Steroid D-isomerase Isopentenyl-diphosphate delta isomerase Vinylacetyl-CoA D-isomerase Muconolactone D-isomerase Cholestenol Delta-isomerase (EBP) Methylitaconate D-isomerase Aconitate Delta-isomerase Enoyl CoA isomerase Prostaglandin-A1 Delta-isomerase 5-carboxymethyl-2-hydroxymuconate D-isomerase Isopiperitenone D-isomerase L-dopachrome isomerase Polyenoic fatty acid isomerase
5.3.4: S-S	Protein disulfide-isomerase (PDIA3)
5.3.99: other	Prostaglandin D2 synthase/Prostaglandin-D synthase Prostaglandin E synthase Prostacyclin synthase Thromboxane-A synthase

v t e Enzymes
Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Diffusion-limited enzyme Cofactor Enzyme catalysis
Regulation	Allosteric regulation Cooperativity Enzyme inhibitor Enzyme activator
Classification	EC number Enzyme superfamily Enzyme family List of enzymes
Kinetics	Enzyme kinetics Eadie–Hofstee diagram Hanes–Woolf plot Lineweaver–Burk plot Michaelis–Menten kinetics
Types	EC1 Oxidoreductases (list) EC2 Transferases (list) EC3 Hydrolases (list) EC4 Lyases (list) EC5 Isomerases (list) EC6 Ligases (list) EC7 Translocases (list)

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