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[[Image:3pgh.gif|left|200px]]


{{Structure
==CYCLOOXYGENASE-2 (PROSTAGLANDIN SYNTHASE-2) COMPLEXED WITH A NON-SELECTIVE INHIBITOR, FLURBIPROFEN==
|PDB= 3pgh |SIZE=350|CAPTION= <scene name='initialview01'>3pgh</scene>, resolution 2.5&Aring;
<StructureSection load='3pgh' size='340' side='right'caption='[[3pgh]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
|SITE= <scene name='pdbsite=ACE:SER+530+Is+Acetylated+By+Aspirin+(An+Acetyl+Group+Is+Cov+...'>ACE</scene>, <scene name='pdbsite=CAT:TYR+385+Is+Believed+To+Be+The+Amino+Acid+That+Abstracts+...'>CAT</scene>, <scene name='pdbsite=HEM:HIS+388+Is+The+Axial+Ligand+To+The+Heme'>HEM</scene> and <scene name='pdbsite=SUB:ARG+120+Is+Believed+To+Anchor+The+Carboxylate+Of+Substra+...'>SUB</scene>
== Structural highlights ==
|LIGAND= <scene name='pdbligand=FLP:FLURBIPROFEN'>FLP</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>
<table><tr><td colspan='2'>[[3pgh]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3PGH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3PGH FirstGlance]. <br>
|ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Prostaglandin-endoperoxide_synthase Prostaglandin-endoperoxide synthase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.14.99.1 1.14.99.1] </span>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.5&#8491;</td></tr>
|GENE=
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FLP:FLURBIPROFEN'>FLP</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></td></tr>
|DOMAIN=
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3pgh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3pgh OCA], [https://pdbe.org/3pgh PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3pgh RCSB], [https://www.ebi.ac.uk/pdbsum/3pgh PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3pgh ProSAT]</span></td></tr>
|RELATEDENTRY=
</table>
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3pgh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3pgh OCA], [http://www.ebi.ac.uk/pdbsum/3pgh PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=3pgh RCSB]</span>
== Function ==
}}
[https://www.uniprot.org/uniprot/PGH2_MOUSE PGH2_MOUSE] Mediates the formation of prostaglandins from arachidonate. May have a role as a major mediator of inflammation and/or a role for prostanoid signaling in activity-dependent plasticity.<ref>PMID:12925531</ref> <ref>PMID:20463020</ref> <ref>PMID:20810665</ref> <ref>PMID:21489986</ref>
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/pg/3pgh_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=3pgh ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Prostaglandins and glucocorticoids are potent mediators of inflammation. Non-steroidal anti-inflammatory drugs (NSAIDs) exert their effects by inhibition of prostaglandin production. The pharmacological target of NSAIDs is cyclooxygenase (COX, also known as PGH synthase), which catalyses the first committed step in arachidonic-acid metabolism. Two isoforms of the membrane protein COX are known: COX-1, which is constitutively expressed in most tissues, is responsible for the physiological production of prostaglandins; and COX-2, which is induced by cytokines, mitogens and endotoxins in inflammatory cells, is responsible for the elevated production of prostaglandins during inflammation. The structure of ovine COX-1 complexed with several NSAIDs has been determined. Here we report the structures of unliganded murine COX-2 and complexes with flurbiprofen, indomethacin and SC-558, a selective COX-2 inhibitor, determined at 3.0 to 2.5 A resolution. These structures explain the structural basis for the selective inhibition of COX-2, and demonstrate some of the conformational changes associated with time-dependent inhibition.


'''CYCLOOXYGENASE-2 (PROSTAGLANDIN SYNTHASE-2) COMPLEXED WITH A NON-SELECTIVE INHIBITOR, FLURBIPROFEN'''
Structural basis for selective inhibition of cyclooxygenase-2 by anti-inflammatory agents.,Kurumbail RG, Stevens AM, Gierse JK, McDonald JJ, Stegeman RA, Pak JY, Gildehaus D, Miyashiro JM, Penning TD, Seibert K, Isakson PC, Stallings WC Nature. 1996 Dec 19-26;384(6610):644-8. PMID:8967954<ref>PMID:8967954</ref>


From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 3pgh" style="background-color:#fffaf0;"></div>


==Overview==
==See Also==
Prostaglandins and glucocorticoids are potent mediators of inflammation. Non-steroidal anti-inflammatory drugs (NSAIDs) exert their effects by inhibition of prostaglandin production. The pharmacological target of NSAIDs is cyclooxygenase (COX, also known as PGH synthase), which catalyses the first committed step in arachidonic-acid metabolism. Two isoforms of the membrane protein COX are known: COX-1, which is constitutively expressed in most tissues, is responsible for the physiological production of prostaglandins; and COX-2, which is induced by cytokines, mitogens and endotoxins in inflammatory cells, is responsible for the elevated production of prostaglandins during inflammation. The structure of ovine COX-1 complexed with several NSAIDs has been determined. Here we report the structures of unliganded murine COX-2 and complexes with flurbiprofen, indomethacin and SC-558, a selective COX-2 inhibitor, determined at 3.0 to 2.5 A resolution. These structures explain the structural basis for the selective inhibition of COX-2, and demonstrate some of the conformational changes associated with time-dependent inhibition.
*[[Cyclooxygenase 3D structures|Cyclooxygenase 3D structures]]
 
== References ==
==About this Structure==
<references/>
3PGH is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3PGH OCA].
__TOC__
 
</StructureSection>
==Reference==
[[Category: Large Structures]]
Structural basis for selective inhibition of cyclooxygenase-2 by anti-inflammatory agents., Kurumbail RG, Stevens AM, Gierse JK, McDonald JJ, Stegeman RA, Pak JY, Gildehaus D, Miyashiro JM, Penning TD, Seibert K, Isakson PC, Stallings WC, Nature. 1996 Dec 19-26;384(6610):644-8. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/8967954 8967954]
[[Category: Mus musculus]]
[[Category: Mus musculus]]
[[Category: Prostaglandin-endoperoxide synthase]]
[[Category: Kurumbail R]]
[[Category: Single protein]]
[[Category: Stallings W]]
[[Category: Kurumbail, R.]]
[[Category: Stallings, W.]]
[[Category: arthritis]]
[[Category: cyclooxygenase]]
[[Category: dioxygenase]]
[[Category: inflammation]]
[[Category: nonsteroidal antiinflammatory drug]]
[[Category: oxidoreductase]]
[[Category: peroxidase]]
[[Category: prostaglandin]]
[[Category: prostaglandin synthase]]
 
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