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3qp1

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==Crystal structure of CviR ligand-binding domain bound to the native ligand C6-HSL==
==Crystal structure of CviR ligand-binding domain bound to the native ligand C6-HSL==
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<StructureSection load='3qp1' size='340' side='right' caption='[[3qp1]], [[Resolution|resolution]] 1.55&Aring;' scene=''>
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<StructureSection load='3qp1' size='340' side='right'caption='[[3qp1]], [[Resolution|resolution]] 1.55&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[3qp1]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Chromobacterium_violaceum Chromobacterium violaceum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3QP1 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3QP1 FirstGlance]. <br>
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<table><tr><td colspan='2'>[[3qp1]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Chromobacterium_violaceum Chromobacterium violaceum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3QP1 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3QP1 FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=HL6:N-[(3S)-2-OXOTETRAHYDROFURAN-3-YL]HEXANAMIDE'>HL6</scene></td></tr>
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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]] 1.55&#8491;</td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3qp2|3qp2]], [[3qp4|3qp4]], [[3qp5|3qp5]], [[3qp6|3qp6]], [[3qp7|3qp7]], [[3qp8|3qp8]]</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=HL6:N-[(3S)-2-OXOTETRAHYDROFURAN-3-YL]HEXANAMIDE'>HL6</scene></td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">cviR ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=536 Chromobacterium violaceum])</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=3qp1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3qp1 OCA], [https://pdbe.org/3qp1 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3qp1 RCSB], [https://www.ebi.ac.uk/pdbsum/3qp1 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3qp1 ProSAT]</span></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3qp1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3qp1 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3qp1 RCSB], [http://www.ebi.ac.uk/pdbsum/3qp1 PDBsum]</span></td></tr>
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</table>
</table>
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<div style="background-color:#fffaf0;">
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== Function ==
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== Publication Abstract from PubMed ==
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[https://www.uniprot.org/uniprot/D3W065_CHRVL D3W065_CHRVL]
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Quorum-sensing bacteria communicate via small molecules called autoinducers to coordinate collective behaviors. Because quorum sensing controls virulence factor expression in many clinically relevant pathogens, membrane-permeable quorum sensing antagonists that prevent population-wide expression of virulence genes offer a potential route to novel antibacterial therapeutics. Here, we report a strategy for inhibiting quorum-sensing receptors of the widespread LuxR family. Structure-function studies with natural and synthetic ligands demonstrate that the dimeric LuxR-type transcription factor CviR from Chromobacterium violaceum is potently antagonized by molecules that bind in place of the native acylated homoserine lactone autoinducer, provided that they stabilize a closed conformation. In such conformations, each of the two DNA-binding domains interacts with the ligand-binding domain of the opposing monomer. Consequently, the DNA-binding helices are held apart by approximately 60 A, twice the approximately 30 A separation required for operator binding. This approach may represent a general strategy for the inhibition of multidomain proteins.
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A strategy for antagonizing quorum sensing.,Chen G, Swem LR, Swem DL, Stauff DL, O'Loughlin CT, Jeffrey PD, Bassler BL, Hughson FM Mol Cell. 2011 Apr 22;42(2):199-209. PMID:21504831<ref>PMID:21504831</ref>
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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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== References ==
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<references/>
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__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Chromobacterium violaceum]]
[[Category: Chromobacterium violaceum]]
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[[Category: Bassler, B]]
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[[Category: Large Structures]]
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[[Category: Chen, G]]
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[[Category: Bassler B]]
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[[Category: Hughson, F]]
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[[Category: Chen G]]
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[[Category: Jeffrey, P]]
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[[Category: Hughson F]]
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[[Category: Loughlin, C O]]
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[[Category: Jeffrey P]]
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[[Category: Stauff, D]]
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[[Category: O'Loughlin C]]
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[[Category: Swem, D]]
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[[Category: Stauff D]]
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[[Category: Swem, L]]
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[[Category: Swem D]]
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[[Category: Acylated homoserine lactone]]
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[[Category: Swem L]]
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[[Category: Agonist]]
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[[Category: Antagonist]]
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[[Category: Dna binding protein]]
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[[Category: Ligand binding domain]]
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[[Category: Luxr]]
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[[Category: N-hexanoyl-l-homoserine lactone]]
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[[Category: Quorum sensing]]
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[[Category: Signal receptor]]
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[[Category: Transcription]]
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[[Category: Transcription activator]]
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[[Category: Transcription factor]]
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Current revision

Crystal structure of CviR ligand-binding domain bound to the native ligand C6-HSL

PDB ID 3qp1

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