1upg: Difference between revisions

From Proteopedia
Jump to navigationJump to search
← Older edit
OCA (talk | contribs)
Bots, Bureaucrats, journal, Administrators
3,331,615 edits
No edit summary
OCA (talk | contribs)
Bots, Bureaucrats, journal, Administrators
3,331,615 edits
No edit summary
 
(13 intermediate revisions by the same user not shown)
Line 1: Line 1:
[[Image:1upg.gif|left|200px]]


{{Structure
==Crystal structure of the quorum-sensing protein TraM from Agrobacterium tumefaciens==
|PDB= 1upg |SIZE=350|CAPTION= <scene name='initialview01'>1upg</scene>, resolution 1.8&Aring;
<StructureSection load='1upg' size='340' side='right'caption='[[1upg]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
|SITE=  
== Structural highlights ==
|LIGAND= <scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene>
<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>
|ACTIVITY=  
</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>
|GENE=  
<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>
|DOMAIN=
<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>
|RELATEDENTRY=
</table>
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1upg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1upg OCA], [http://www.ebi.ac.uk/pdbsum/1upg PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1upg RCSB]</span>
== Evolutionary Conservation ==
}}
[[Image:Consurf_key_small.gif|200px|right]]
 
Check<jmol>
'''CRYSTAL STRUCTURE OF THE QUORUM-SENSING PROTEIN TRAM FROM AGROBACTERIUM TUMEFACIENS'''
  <jmolCheckbox>
 
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/up/1upg_consurf.spt"</scriptWhenChecked>
 
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
==Overview==
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</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].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
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.
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.


==About this Structure==
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>
1UPG is a [[Single protein]] structure of 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].


==Reference==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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:[http://www.ncbi.nlm.nih.gov/pubmed/15044488 15044488]
</div>
<div class="pdbe-citations 1upg" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Agrobacterium tumefaciens]]
[[Category: Agrobacterium tumefaciens]]
[[Category: Single protein]]
[[Category: Large Structures]]
[[Category: Marco, S Di.]]
[[Category: Di Marco S]]
[[Category: Vannini, A.]]
[[Category: Vannini A]]
[[Category: conjugation]]
[[Category: negative regulator]]
[[Category: quorum-sensing]]
[[Category: repressor]]
[[Category: transcription regulation]]
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 00:13:32 2008''
Retrieved from "https://proteopedia.org/1upg"