View source for 7nvg


==Salmonella flagellar basal body refined in C1 map==
<StructureSection load='7nvg' size='340' side='right'caption='[[7nvg]], [[Resolution|resolution]] 3.70&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[7nvg]] is a 116 chain structure with sequence from [https://en.wikipedia.org/wiki/Salmonella_enterica_subsp._enterica_serovar_Typhimurium Salmonella enterica subsp. enterica serovar Typhimurium]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7NVG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7NVG FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 3.7&#8491;</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=7nvg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7nvg OCA], [https://pdbe.org/7nvg PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7nvg RCSB], [https://www.ebi.ac.uk/pdbsum/7nvg PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7nvg ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/FLIF_SALTY FLIF_SALTY] The M ring may be actively involved in energy transduction.
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== Publication Abstract from PubMed ==
The bacterial flagellum is a macromolecular protein complex that enables motility in many species. Bacterial flagella self-assemble a strong, multicomponent drive shaft that couples rotation in the inner membrane to the micrometre-long flagellar filament that powers bacterial swimming in viscous fluids(1-3). Here, we present structures of the intact Salmonella flagellar basal body(4), encompassing the inner membrane rotor, drive shaft and outer-membrane bushing, solved using cryo-electron microscopy to resolutions of 2.2-3.7 A. The structures reveal molecular details of how 173 protein molecules of 13 different types assemble into a complex spanning two membranes and a cell wall. The helical drive shaft at one end is intricately interwoven with the rotor component with both the export gate complex and the proximal rod forming interactions with the MS-ring. At the other end, the drive shaft distal rod passes through the LP-ring bushing complex, which functions as a molecular bearing anchored in the outer membrane through interactions with the lipopolysaccharide. The in situ structure of a protein complex capping the drive shaft provides molecular insights into the assembly process of this molecular machine.

Molecular structure of the intact bacterial flagellar basal body.,Johnson S, Furlong EJ, Deme JC, Nord AL, Caesar JJE, Chevance FFV, Berry RM, Hughes KT, Lea SM Nat Microbiol. 2021 Apr 30. pii: 10.1038/s41564-021-00895-y. doi:, 10.1038/s41564-021-00895-y. PMID:33931760<ref>PMID:33931760</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 7nvg" style="background-color:#fffaf0;"></div>
== References ==
<references/>
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</StructureSection>
[[Category: Large Structures]]
[[Category: Salmonella enterica subsp. enterica serovar Typhimurium]]
[[Category: Furlong E]]
[[Category: Johnson S]]
[[Category: Lea SM]]