1h05

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[[Image:1h05.gif|left|200px]]<br /><applet load="1h05" size="450" color="white" frame="true" align="right" spinBox="true"
 
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caption="1h05, resolution 1.5&Aring;" />
 
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'''3-DEHYDROQUINATE DEHYDRATASE FROM MYCOBACTERIUM TUBERCULOSIS IN COMPLEX WITH SULPHATE'''<br />
 
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==Overview==
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==3-DEHYDROQUINATE DEHYDRATASE FROM MYCOBACTERIUM TUBERCULOSIS IN COMPLEX WITH SULPHATE==
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The interactions between the polyanionic ligands phosphate and sulphate, and the type II dehydroquinases from Streptomyces coelicolor and, Mycobacterium tuberculosis have been characterised using a combination of, structural and kinetic methods. From both approaches, it is clear that, interactions are more complex in the case of the latter enzyme. The data, provide new insights into the differences between the two enzymes in terms, of substrate recognition and catalytic efficiency and may also explain the, relative potencies of rationally designed inhibitors. An improved route to, the synthesis of the substrate 3-dehydroquinic acid (dehydroquinate) is, described.
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<StructureSection load='1h05' size='340' side='right'caption='[[1h05]], [[Resolution|resolution]] 1.50&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1h05]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Mycobacterium_tuberculosis_H37Rv Mycobacterium tuberculosis H37Rv]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1H05 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1H05 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]] 1.5&#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=SO4:SULFATE+ION'>SO4</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=1h05 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1h05 OCA], [https://pdbe.org/1h05 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1h05 RCSB], [https://www.ebi.ac.uk/pdbsum/1h05 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1h05 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/AROQ_MYCTU AROQ_MYCTU] Catalyzes a trans-dehydration via an enolate intermediate (By similarity).[HAMAP-Rule:MF_00169]
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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/h0/1h05_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=1h05 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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The interactions between the polyanionic ligands phosphate and sulphate and the type II dehydroquinases from Streptomyces coelicolor and Mycobacterium tuberculosis have been characterised using a combination of structural and kinetic methods. From both approaches, it is clear that interactions are more complex in the case of the latter enzyme. The data provide new insights into the differences between the two enzymes in terms of substrate recognition and catalytic efficiency and may also explain the relative potencies of rationally designed inhibitors. An improved route to the synthesis of the substrate 3-dehydroquinic acid (dehydroquinate) is described.
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==About this Structure==
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Specificity of substrate recognition by type II dehydroquinases as revealed by binding of polyanions.,Evans LD, Roszak AW, Noble LJ, Robinson DA, Chalk PA, Matthews JL, Coggins JR, Price NC, Lapthorn AJ FEBS Lett. 2002 Oct 23;530(1-3):24-30. PMID:12387860<ref>PMID:12387860</ref>
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1H05 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Mycobacterium_tuberculosis Mycobacterium tuberculosis] with SO4 as [http://en.wikipedia.org/wiki/ligand ligand]. Active as [http://en.wikipedia.org/wiki/3-dehydroquinate_dehydratase 3-dehydroquinate dehydratase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.2.1.10 4.2.1.10] Known structural/functional Site: <scene name='pdbsite=SO1:So4 Binding Site For Chain A'>SO1</scene>. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1H05 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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Specificity of substrate recognition by type II dehydroquinases as revealed by binding of polyanions., Evans LD, Roszak AW, Noble LJ, Robinson DA, Chalk PA, Matthews JL, Coggins JR, Price NC, Lapthorn AJ, FEBS Lett. 2002 Oct 23;530(1-3):24-30. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=12387860 12387860]
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</div>
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[[Category: 3-dehydroquinate dehydratase]]
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<div class="pdbe-citations 1h05" style="background-color:#fffaf0;"></div>
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[[Category: Mycobacterium tuberculosis]]
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[[Category: Single protein]]
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[[Category: Coggins, J.R.]]
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[[Category: Lapthorn, A.J.]]
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[[Category: Roszak, A.W.]]
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[[Category: SO4]]
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[[Category: alpha/beta protein]]
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[[Category: aromatic amino acid biosynthesis]]
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[[Category: dehydratase]]
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[[Category: lyase]]
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[[Category: shikimate pathway]]
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''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Tue Dec 18 15:49:38 2007''
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==See Also==
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*[[Dehydroquinase 3D structures|Dehydroquinase 3D structures]]
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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]]
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[[Category: Mycobacterium tuberculosis H37Rv]]
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[[Category: Coggins JR]]
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[[Category: Lapthorn AJ]]
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[[Category: Roszak AW]]

Current revision

3-DEHYDROQUINATE DEHYDRATASE FROM MYCOBACTERIUM TUBERCULOSIS IN COMPLEX WITH SULPHATE

PDB ID 1h05

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