1upg

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[[Image:1upg.png|left|200px]]
 
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{{STRUCTURE_1upg| PDB=1upg | SCENE= }}
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==Crystal structure of the quorum-sensing protein TraM from Agrobacterium tumefaciens==
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<StructureSection load='1upg' size='340' side='right'caption='[[1upg]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1upg]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Agrobacterium_tumefaciens Agrobacterium tumefaciens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1UPG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1UPG 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]] 1.8&#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=MSE:SELENOMETHIONINE'>MSE</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=1upg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1upg OCA], [https://pdbe.org/1upg PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1upg RCSB], [https://www.ebi.ac.uk/pdbsum/1upg PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1upg ProSAT]</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/up/1upg_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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=1upg 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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Transfer of the tumor-inducing plasmid in Agrobacterium tumefaciens is controlled by a quorum-sensing system whose main components are the transcriptional regulator TraR and its autoinducer. This system allows bacteria to synchronize infection of the host plant when a "quorum" of cells has been reached. TraM is an A. tumefaciens protein involved in the regulation of this system because it binds to TraR and prevents it from binding DNA. As a first step to understanding the molecular basis for the regulation of TraR by TraM, we have determined the crystal structure of TraM at 1.65 A resolution. This protein is packed as a dimer, with each monomer consisting mainly of two antiparallel alpha helices. Monomers are tightly associated, with a large hydrophobic area buried upon dimerization. Secondly, we characterized the TraR-TraM complex in vitro. TraM (11.4 kDa, monomer molecular mass) binds tightly TraR (27 kDa, monomer molecular mass) forming a stable oligomeric complex that likely accounts for two TraR and two TraM dimers.
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===CRYSTAL STRUCTURE OF THE QUORUM-SENSING PROTEIN TRAM FROM AGROBACTERIUM TUMEFACIENS===
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Crystal structure of the quorum-sensing protein TraM and its interaction with the transcriptional regulator TraR.,Vannini A, Volpari C, Di Marco S J Biol Chem. 2004 Jun 4;279(23):24291-6. Epub 2004 Mar 24. PMID:15044488<ref>PMID:15044488</ref>
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{{ABSTRACT_PUBMED_15044488}}
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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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==About this Structure==
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<div class="pdbe-citations 1upg" style="background-color:#fffaf0;"></div>
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[[1upg]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Agrobacterium_tumefaciens Agrobacterium tumefaciens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1UPG OCA].
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== References ==
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<references/>
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==Reference==
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__TOC__
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<ref group="xtra">PMID:015044488</ref><references group="xtra"/>
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</StructureSection>
[[Category: Agrobacterium tumefaciens]]
[[Category: Agrobacterium tumefaciens]]
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[[Category: Marco, S Di.]]
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[[Category: Large Structures]]
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[[Category: Vannini, A.]]
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[[Category: Di Marco S]]
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[[Category: Conjugation]]
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[[Category: Vannini A]]
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[[Category: Negative regulator]]
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[[Category: Quorum-sensing]]
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[[Category: Repressor]]
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[[Category: Transcription regulation]]
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[[Category: Transcription repressor]]
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Current revision

Crystal structure of the quorum-sensing protein TraM from Agrobacterium tumefaciens

PDB ID 1upg

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