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1h1m

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{{STRUCTURE_1h1m| PDB=1h1m | SCENE= }}
 
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===CRYSTAL STRUCTURE OF QUERCETIN 2,3-DIOXYGENASE ANAEROBICALLY COMPLEXED WITH THE SUBSTRATE KAEMPFEROL===
 
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{{ABSTRACT_PUBMED_12486225}}
 
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==Function==
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==CRYSTAL STRUCTURE OF QUERCETIN 2,3-DIOXYGENASE ANAEROBICALLY COMPLEXED WITH THE SUBSTRATE KAEMPFEROL==
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[[http://www.uniprot.org/uniprot/QDOI_ASPJA QDOI_ASPJA]] Performs the first step in the degradation of the flavonoid quercetin by a dioxygenase reaction. The enzyme catalyzes the cleavage of the O-heteroaromatic ring of the flavonol quercetin yielding the depside 2-protocatechuoyl-phloroglucinol carboxylic acid and carbon monoxide. This involves the remarkable dioxygenolytic cleavage of two carbon-carbon bonds.
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<StructureSection load='1h1m' size='340' side='right'caption='[[1h1m]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
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== Structural highlights ==
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==About this Structure==
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<table><tr><td colspan='2'>[[1h1m]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Aspergillus_japonicus Aspergillus japonicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1H1M OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1H1M FirstGlance]. <br>
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[[1h1m]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Aspergillus_japonicus Aspergillus japonicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1H1M OCA].
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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]] 1.9&#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=BMA:BETA-D-MANNOSE'>BMA</scene>, <scene name='pdbligand=CU:COPPER+(II)+ION'>CU</scene>, <scene name='pdbligand=KMP:3,5,7-TRIHYDROXY-2-(4-HYDROXYPHENYL)-4H-CHROMEN-4-ONE'>KMP</scene>, <scene name='pdbligand=MAN:ALPHA-D-MANNOSE'>MAN</scene>, <scene name='pdbligand=MPD:(4S)-2-METHYL-2,4-PENTANEDIOL'>MPD</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</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=1h1m FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1h1m OCA], [https://pdbe.org/1h1m PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1h1m RCSB], [https://www.ebi.ac.uk/pdbsum/1h1m PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1h1m ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/QDOI_ASPJA QDOI_ASPJA] Performs the first step in the degradation of the flavonoid quercetin by a dioxygenase reaction. The enzyme catalyzes the cleavage of the O-heteroaromatic ring of the flavonol quercetin yielding the depside 2-protocatechuoyl-phloroglucinol carboxylic acid and carbon monoxide. This involves the remarkable dioxygenolytic cleavage of two carbon-carbon bonds.
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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/h1/1h1m_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=1h1m ConSurf].
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<div style="clear:both"></div>
==See Also==
==See Also==
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*[[Dioxygenase|Dioxygenase]]
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*[[Dioxygenase 3D structures|Dioxygenase 3D structures]]
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__TOC__
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==Reference==
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</StructureSection>
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<ref group="xtra">PMID:012486225</ref><references group="xtra"/><references/>
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[[Category: Aspergillus japonicus]]
[[Category: Aspergillus japonicus]]
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[[Category: Quercetin 2,3-dioxygenase]]
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[[Category: Large Structures]]
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[[Category: Dijkstra, B W.]]
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[[Category: Dijkstra BW]]
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[[Category: Steiner, R A.]]
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[[Category: Steiner RA]]
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[[Category: Dioxygenase]]
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[[Category: Flavonol]]
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[[Category: Oxidoreductase]]
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Current revision

CRYSTAL STRUCTURE OF QUERCETIN 2,3-DIOXYGENASE ANAEROBICALLY COMPLEXED WITH THE SUBSTRATE KAEMPFEROL

PDB ID 1h1m

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