2q09

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[[Image:2q09.png|left|200px]]
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==Crystal structure of Imidazolonepropionase from environmental sample with bound inhibitor 3-(2,5-Dioxo-imidazolidin-4-yl)-propionic acid==
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<StructureSection load='2q09' size='340' side='right' caption='[[2q09]], [[Resolution|resolution]] 1.97&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2q09]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Unidentified Unidentified]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2Q09 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2Q09 FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=DI6:3-[(4S)-2,5-DIOXOIMIDAZOLIDIN-4-YL]PROPANOIC+ACID'>DI6</scene>, <scene name='pdbligand=FE:FE+(III)+ION'>FE</scene><br>
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<tr><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr>
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<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2gok|2gok]], [[2oof|2oof]], [[2puz|2puz]]</td></tr>
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<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Imidazolonepropionase Imidazolonepropionase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.5.2.7 3.5.2.7] </span></td></tr>
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<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2q09 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2q09 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2q09 RCSB], [http://www.ebi.ac.uk/pdbsum/2q09 PDBsum], [http://www.topsan.org/Proteins/NYSGXRC/2q09 TOPSAN]</span></td></tr>
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<table>
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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/q0/2q09_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/chain_selection.php?pdb_ID=2ata 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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Imidazolonepropionase (HutI) (imidazolone-5-propanote hydrolase, EC 3.5.2.7) is a member of the amidohydrolase superfamily and catalyzes the conversion of imidazolone-5-propanoate to N-formimino-L-glutamate in the histidine degradation pathway. We have determined the three-dimensional crystal structures of HutI from Agrobacterium tumefaciens (At-HutI) and an environmental sample from the Sargasso Sea Ocean Going Survey (Es-HutI) bound to the product [ N-formimino-L-glutamate (NIG)] and an inhibitor [3-(2,5-dioxoimidazolidin-4-yl)propionic acid (DIP)], respectively. In both structures, the active site is contained within each monomer, and its organization displays the landmark feature of the amidohydrolase superfamily, showing a metal ligand (iron), four histidines, and one aspartic acid. A catalytic mechanism involving His265 is proposed on the basis of the inhibitor-bound structure. This mechanism is applicable to all HutI forms.
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{{STRUCTURE_2q09| PDB=2q09 | SCENE= }}
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A common catalytic mechanism for proteins of the HutI family.,Tyagi R, Eswaramoorthy S, Burley SK, Raushel FM, Swaminathan S Biochemistry. 2008 May 20;47(20):5608-15. Epub 2008 Apr 29. PMID:18442260<ref>PMID:18442260</ref>
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===Crystal structure of Imidazolonepropionase from environmental sample with bound inhibitor 3-(2,5-Dioxo-imidazolidin-4-yl)-propionic acid===
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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{{ABSTRACT_PUBMED_18442260}}
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== References ==
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<references/>
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==About this Structure==
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__TOC__
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[[2q09]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Unidentified Unidentified]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2Q09 OCA].
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</StructureSection>
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==Reference==
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<ref group="xtra">PMID:018442260</ref><references group="xtra"/>
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[[Category: Imidazolonepropionase]]
[[Category: Imidazolonepropionase]]
[[Category: Unidentified]]
[[Category: Unidentified]]

Revision as of 20:07, 30 September 2014

Crystal structure of Imidazolonepropionase from environmental sample with bound inhibitor 3-(2,5-Dioxo-imidazolidin-4-yl)-propionic acid

2q09, resolution 1.97Å

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