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1e18

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[[Image:1e18.gif|left|200px]]<br />
 
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<applet load="1e18" size="450" color="white" frame="true" align="right" spinBox="true"
 
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caption="1e18, resolution 2.0&Aring;" />
 
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'''TUNGSTEN-SUSBSTITUTED DMSO REDUCTASE FROM RHODOBACTER CAPSULATUS'''<br />
 
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==Overview==
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==TUNGSTEN-SUSBSTITUTED DMSO REDUCTASE FROM RHODOBACTER CAPSULATUS==
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DMSO reductase (DMSOR) from Rhodobacter capsulatus, well-characterised as, a molybdoenzyme, will bind tungsten. Protein crystallography has shown, that tungsten in W-DMSOR is ligated by the dithiolene group of the two, pyranopterins, the oxygen atom of Ser147 plus another oxygen atom, and is, located in a very similar site to that of molybdenum in Mo-DMSOR. These, conclusions are consistent with W L(III)-edge X-ray absorption, EPR and, UV/visible spectroscopic data. W-DMSOR is significantly more active than, Mo-DMSOR in catalysing the reduction of DMSO but, in contrast to the, latter, shows no significant ability to catalyse the oxidation of DMS.
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<StructureSection load='1e18' size='340' side='right'caption='[[1e18]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1e18]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Rhodobacter_capsulatus Rhodobacter capsulatus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1E18 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1E18 FirstGlance]. <br>
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</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&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=6WO:OXO-TUNGSTEN(VI)'>6WO</scene>, <scene name='pdbligand=EOH:ETHANOL'>EOH</scene>, <scene name='pdbligand=PGD:2-AMINO-5,6-DIMERCAPTO-7-METHYL-3,7,8A,9-TETRAHYDRO-8-OXA-1,3,9,10-TETRAAZA-ANTHRACEN-4-ONE+GUANOSINE+DINUCLEOTIDE'>PGD</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1e18 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1e18 OCA], [https://pdbe.org/1e18 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1e18 RCSB], [https://www.ebi.ac.uk/pdbsum/1e18 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1e18 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/DSTOR_RHOCA DSTOR_RHOCA] Catalyzes the reduction of dimethyl sulfoxide (DMSO) and trimethylamine N-oxide (TMAO) to dimethyl sulfide (DMS) and trimethylamine, respectively. The terminal DMSO reductase can also use various sulfoxides and N-oxide compounds as terminal electron acceptor in addition to DMSO and TMAO.<ref>PMID:2001248</ref> <ref>PMID:8856102</ref>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/e1/1e18_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</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=1e18 ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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DMSO reductase (DMSOR) from Rhodobacter capsulatus, well-characterised as a molybdoenzyme, will bind tungsten. Protein crystallography has shown that tungsten in W-DMSOR is ligated by the dithiolene group of the two pyranopterins, the oxygen atom of Ser147 plus another oxygen atom, and is located in a very similar site to that of molybdenum in Mo-DMSOR. These conclusions are consistent with W L(III)-edge X-ray absorption, EPR and UV/visible spectroscopic data. W-DMSOR is significantly more active than Mo-DMSOR in catalysing the reduction of DMSO but, in contrast to the latter, shows no significant ability to catalyse the oxidation of DMS.
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==About this Structure==
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Dimethylsulfoxide reductase: an enzyme capable of catalysis with either molybdenum or tungsten at the active site.,Stewart LJ, Bailey S, Bennett B, Charnock JM, Garner CD, McAlpine AS J Mol Biol. 2000 Jun 9;299(3):593-600. PMID:10835270<ref>PMID:10835270</ref>
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1E18 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Rhodobacter_capsulatus Rhodobacter capsulatus] with PGD, 6WO and EOH as [http://en.wikipedia.org/wiki/ligands ligands]. Structure known Active Site: ACT. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1E18 OCA].
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==Reference==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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Dimethylsulfoxide reductase: an enzyme capable of catalysis with either molybdenum or tungsten at the active site., Stewart LJ, Bailey S, Bennett B, Charnock JM, Garner CD, McAlpine AS, J Mol Biol. 2000 Jun 9;299(3):593-600. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=10835270 10835270]
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</div>
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<div class="pdbe-citations 1e18" style="background-color:#fffaf0;"></div>
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Large Structures]]
[[Category: Rhodobacter capsulatus]]
[[Category: Rhodobacter capsulatus]]
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[[Category: Single protein]]
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[[Category: Bailey S]]
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[[Category: Bailey, S.]]
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[[Category: Stewart LJ]]
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[[Category: Stewart, L.J.]]
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[[Category: 6WO]]
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[[Category: EOH]]
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[[Category: PGD]]
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[[Category: dmso]]
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[[Category: molybdenum]]
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[[Category: molybdopterin]]
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[[Category: oxidoreductase]]
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[[Category: reductase]]
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[[Category: tungsten]]
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''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Mon Nov 5 16:03:42 2007''
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Current revision

TUNGSTEN-SUSBSTITUTED DMSO REDUCTASE FROM RHODOBACTER CAPSULATUS

PDB ID 1e18

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