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5urw

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Current revision (14:09, 13 March 2024) (edit) (undo)
 
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<SX load='5urw' size='340' side='right' viewer='molstar' caption='[[5urw]], [[Resolution|resolution]] 24.00&Aring;' scene=''>
<SX load='5urw' size='340' side='right' viewer='molstar' caption='[[5urw]], [[Resolution|resolution]] 24.00&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[5urw]] is a 54 chain structure with sequence from [http://en.wikipedia.org/wiki/Myxococcus_xanthus Myxococcus xanthus] and [http://en.wikipedia.org/wiki/Myxococcus_xanthus_(strain_dk_1622) Myxococcus xanthus (strain dk 1622)]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5URW OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=5URW FirstGlance]. <br>
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<table><tr><td colspan='2'>[[5urw]] is a 54 chain structure with sequence from [https://en.wikipedia.org/wiki/Myxococcus_xanthus_DK_1622 Myxococcus xanthus DK 1622]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5URW OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5URW FirstGlance]. <br>
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</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5urx|5urx]]</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">Electron Microscopy, [[Resolution|Resolution]] 24&#8491;</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=5urw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5urw OCA], [http://pdbe.org/5urw PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5urw RCSB], [http://www.ebi.ac.uk/pdbsum/5urw PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5urw ProSAT]</span></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=5urw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5urw OCA], [https://pdbe.org/5urw PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5urw RCSB], [https://www.ebi.ac.uk/pdbsum/5urw PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5urw ProSAT]</span></td></tr>
</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/Q1D304_MYXXD Q1D304_MYXXD]
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The type VI secretion system (T6SS) is a versatile molecular weapon used by many bacteria against eukaryotic hosts or prokaryotic competitors. It consists of a cytoplasmic bacteriophage tail-like structure anchored in the bacterial cell envelope via a cytoplasmic baseplate and a periplasmic membrane complex. Rapid contraction of the sheath in the bacteriophage tail-like structure propels an inner tube/spike complex through the target cell envelope to deliver effectors. While structures of purified contracted sheath and purified membrane complex have been solved, because sheaths contract upon cell lysis and purification, no structure is available for the extended sheath. Structural information about the baseplate is also lacking. Here, we use electron cryotomography to directly visualize intact T6SS structures inside Myxococcus xanthus cells. Using sub-tomogram averaging, we resolve the structure of the extended sheath and membrane-associated components including the baseplate. Moreover, we identify novel extracellular bacteriophage tail fiber-like antennae. These results provide new structural insights into how the extended sheath prevents premature disassembly and how this sophisticated machine may recognize targets.
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In vivo structures of an intact type VI secretion system revealed by electron cryotomography.,Chang YW, Rettberg LA, Ortega DR, Jensen GJ EMBO Rep. 2017 May 9. pii: e201744072. doi: 10.15252/embr.201744072. PMID:28487352<ref>PMID:28487352</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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<div class="pdbe-citations 5urw" style="background-color:#fffaf0;"></div>
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== References ==
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<references/>
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__TOC__
__TOC__
</SX>
</SX>
[[Category: Large Structures]]
[[Category: Large Structures]]
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[[Category: Myxococcus xanthus]]
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[[Category: Myxococcus xanthus DK 1622]]
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[[Category: Chang, Y W]]
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[[Category: Chang Y-W]]
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[[Category: Jensen, G J]]
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[[Category: Jensen GJ]]
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[[Category: Rettberg, L A]]
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[[Category: Rettberg LA]]
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[[Category: Contractile]]
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[[Category: Protein machine]]
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[[Category: Protein transport]]
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[[Category: Secretion system]]
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[[Category: Sheath]]
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[[Category: T6ss]]
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[[Category: Type iv secretion]]
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Current revision

Structure of the extended type VI secretion system sheath in Myxococcus xanthus

5urw, resolution 24.00Å

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OCA

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