1cqe: Difference between revisions

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[[Image:1cqe.gif|left|200px]]<br /><applet load="1cqe" size="350" color="white" frame="true" align="right" spinBox="true"
caption="1cqe, resolution 3.1&Aring;" />
'''PROSTAGLANDIN H2 SYNTHASE-1 COMPLEX WITH FLURBIPROFEN'''<br />


==Overview==
==PROSTAGLANDIN H2 SYNTHASE-1 COMPLEX WITH FLURBIPROFEN==
<StructureSection load='1cqe' size='340' side='right'caption='[[1cqe]], [[Resolution|resolution]] 3.10&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1cqe]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Ovis_aries Ovis aries]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CQE OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1CQE FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.1&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BOG:B-OCTYLGLUCOSIDE'>BOG</scene>, <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>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1cqe FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1cqe OCA], [https://pdbe.org/1cqe PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1cqe RCSB], [https://www.ebi.ac.uk/pdbsum/1cqe PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1cqe ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/PGH1_SHEEP PGH1_SHEEP] May play an important role in regulating or promoting cell proliferation in some normal and neoplastically transformed cells.
== 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/cq/1cqe_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=1cqe ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The three-dimensional structure of prostaglandin H2 synthase-1, an integral membrane protein, has been determined at 3.5 A resolution by X-ray crystallography. This bifunctional enzyme comprises three independent folding units: an epidermal growth factor domain, a membrane-binding motif and an enzymatic domain. Two adjacent but spatially distinct active sites were found for its haem-dependent peroxidase and cyclooxygenase activities. The cyclooxygenase active site is created by a long, hydrophobic channel that is the site of non-steroidal anti-inflammatory drug binding. The conformation of the membrane-binding motif strongly suggests that the enzyme integrates into only one leaflet of the lipid bilayer and is thus a monotopic membrane protein.
The three-dimensional structure of prostaglandin H2 synthase-1, an integral membrane protein, has been determined at 3.5 A resolution by X-ray crystallography. This bifunctional enzyme comprises three independent folding units: an epidermal growth factor domain, a membrane-binding motif and an enzymatic domain. Two adjacent but spatially distinct active sites were found for its haem-dependent peroxidase and cyclooxygenase activities. The cyclooxygenase active site is created by a long, hydrophobic channel that is the site of non-steroidal anti-inflammatory drug binding. The conformation of the membrane-binding motif strongly suggests that the enzyme integrates into only one leaflet of the lipid bilayer and is thus a monotopic membrane protein.


==About this Structure==
The X-ray crystal structure of the membrane protein prostaglandin H2 synthase-1.,Picot D, Loll PJ, Garavito RM Nature. 1994 Jan 20;367(6460):243-9. PMID:8121489<ref>PMID:8121489</ref>
1CQE is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Ovis_aries Ovis aries] with <scene name='pdbligand=BOG:'>BOG</scene>, <scene name='pdbligand=HEM:'>HEM</scene> and <scene name='pdbligand=FLP:'>FLP</scene> as [http://en.wikipedia.org/wiki/ligands ligands]. Active as [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] Known structural/functional Sites: <scene name='pdbsite=COA:Hydrophobic+Channel+Responsible+For+Cycloogenase+Activity'>COA</scene>, <scene name='pdbsite=COB:Hydrophobic+Channel+Responsible+For+Cycloogenase+Activity'>COB</scene>, <scene name='pdbsite=POA:Heme+Pocket+Responsible+For+Peroxidase+Activity'>POA</scene> and <scene name='pdbsite=POB:Heme+Pocket+Responsible+For+Peroxidase+Activity'>POB</scene>. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CQE OCA].


==Reference==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
The X-ray crystal structure of the membrane protein prostaglandin H2 synthase-1., Picot D, Loll PJ, Garavito RM, Nature. 1994 Jan 20;367(6460):243-9. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=8121489 8121489]
</div>
<div class="pdbe-citations 1cqe" style="background-color:#fffaf0;"></div>
 
==See Also==
*[[Cyclooxygenase 3D structures|Cyclooxygenase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Ovis aries]]
[[Category: Ovis aries]]
[[Category: Prostaglandin-endoperoxide synthase]]
[[Category: Garavito RM]]
[[Category: Single protein]]
[[Category: Loll PJ]]
[[Category: Garavito, R M.]]
[[Category: Mulichak AM]]
[[Category: Loll, P J.]]
[[Category: Picot D]]
[[Category: Mulichak, A M.]]
[[Category: Picot, D.]]
[[Category: BOG]]
[[Category: FLP]]
[[Category: HEM]]
[[Category: dioxygenase]]
[[Category: oxidoreductase]]
[[Category: peroxidase]]
 
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