3jqo: Difference between revisions

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-{{STRUCTURE_3jqo|  PDB=3jqo  |  SCENE=  }}
+==Crystal structure of the outer membrane complex of a type IV secretion system==
-===Crystal structure of the outer membrane complex of a type IV secretion system===
+<StructureSection load='3jqo' size='340' side='right' caption='[[3jqo]], [[Resolution|resolution]] 2.60&Aring;' scene=''>
-{{ABSTRACT_PUBMED_19946264}}
+== Structural highlights ==
+<table><tr><td colspan='2'>[[3jqo]] is a 42 chain structure with sequence from [http://en.wikipedia.org/wiki/Ecoli Ecoli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3JQO OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3JQO FirstGlance]. <br>
+</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=LDA:LAURYL+DIMETHYLAMINE-N-OXIDE'>LDA</scene>, <scene name='pdbligand=MPD:(4S)-2-METHYL-2,4-PENTANEDIOL'>MPD</scene><br>
+<tr><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr>
+<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2bhv|2bhv]], [[2ofq|2ofq]]</td></tr>
+<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">traF ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=83333 ECOLI]), traO ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=83333 ECOLI]), traN ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=83333 ECOLI])</td></tr>
+<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3jqo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3jqo OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3jqo RCSB], [http://www.ebi.ac.uk/pdbsum/3jqo PDBsum]</span></td></tr>
+<table>
+== Evolutionary Conservation ==
+[[Image:Consurf_key_small.gif|200px|right]]
+Check<jmol>
+  <jmolCheckbox>
+    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/jq/3jqo_consurf.spt"</scriptWhenChecked>
+    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
+    <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/chain_selection.php?pdb_ID=2ata ConSurf].
+<div style="clear:both"></div>
+<div style="background-color:#fffaf0;">
+== Publication Abstract from PubMed ==
+Type IV secretion systems are secretion nanomachines spanning the two membranes of Gram-negative bacteria. Three proteins, VirB7, VirB9 and VirB10, assemble into a 1.05 megadalton (MDa) core spanning the inner and outer membranes. This core consists of 14 copies of each of the proteins and forms two layers, the I and O layers, inserting in the inner and outer membrane, respectively. Here we present the crystal structure of a approximately 0.6 MDa outer-membrane complex containing the entire O layer. This structure is the largest determined for an outer-membrane channel and is unprecedented in being composed of three proteins. Unexpectedly, this structure identifies VirB10 as the outer-membrane channel with a unique hydrophobic double-helical transmembrane region. This structure establishes VirB10 as the only known protein crossing both membranes of Gram-negative bacteria. Comparison of the cryo-electron microscopy (cryo-EM) and crystallographic structures points to conformational changes regulating channel opening and closing.
-==About this Structure==
+Structure of the outer membrane complex of a type IV secretion system.,Chandran V, Fronzes R, Duquerroy S, Cronin N, Navaza J, Waksman G Nature. 2009 Dec 24;462(7276):1011-5. Epub 2009 Nov 29. PMID:19946264<ref>PMID:19946264</ref>
-[[3jqo]] is a 42 chain structure with sequence from [http://en.wikipedia.org/wiki/Ecoli Ecoli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3JQO OCA].
+From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
+</div>
 ==See Also==
 *[[Jmol/Visualizing large molecules|Jmol/Visualizing large molecules]]
+== References ==
-==Reference==
+<references/>
-<ref group="xtra">PMID:019946264</ref><references group="xtra"/><references/>
+__TOC__
+</StructureSection>
 [[Category: Ecoli]]
 [[Category: Chandran, V.]]