8pfb: Difference between revisions
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==Structure of a heteropolymeric type 4 pilus from a monoderm bacterium== | |||
<StructureSection load='8pfb' size='340' side='right'caption='[[8pfb]], [[Resolution|resolution]] 3.67Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[8pfb]] is a 9 chain structure with sequence from [https://en.wikipedia.org/wiki/Streptococcus_sanguinis Streptococcus sanguinis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8PFB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8PFB 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]] 3.67Å</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=8pfb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8pfb OCA], [https://pdbe.org/8pfb PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8pfb RCSB], [https://www.ebi.ac.uk/pdbsum/8pfb PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8pfb ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/A0A0B7GU52_STRSA A0A0B7GU52_STRSA] | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Type 4 pili (T4P) are important virulence factors, which belong to a superfamily of nanomachines ubiquitous in prokaryotes, called type 4 filaments (T4F). T4F are defined as helical polymers of type 4 pilins. Recent advances in cryo-electron microscopy (cryo-EM) led to structures of several T4F, revealing that the long N-terminal alpha-helix (alpha1) - the trademark of pilins - packs in the centre of the filaments to form a hydrophobic core. In diderm bacteria - all available bacterial T4F structures are from diderm species - a portion of alpha1 is melted (unfolded). Here we report that this architecture is conserved in phylogenetically distant monoderm species by determining the structure of Streptococcus sanguinis T4P. Our 3.7 A resolution cryo-EM structure of S. sanguinis heteropolymeric T4P and the resulting full atomic model including all minor pilins highlight universal features of bacterial T4F and have widespread implications in understanding T4F biology. | |||
Structure of a heteropolymeric type 4 pilus from a monoderm bacterium.,Anger R, Pieulle L, Shahin M, Valette O, Le Guenno H, Kosta A, Pelicic V, Fronzes R Nat Commun. 2023 Nov 6;14(1):7143. doi: 10.1038/s41467-023-42872-5. PMID:37932265<ref>PMID:37932265</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
[[Category: | </div> | ||
[[Category: | <div class="pdbe-citations 8pfb" style="background-color:#fffaf0;"></div> | ||
[[Category: | == References == | ||
[[Category: | <references/> | ||
[[Category: | __TOC__ | ||
[[Category: | </StructureSection> | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: Shahin | [[Category: Streptococcus sanguinis]] | ||
[[Category: | [[Category: Anger R]] | ||
[[Category: Fronzes R]] | |||
[[Category: Kosta A]] | |||
[[Category: Le Guenno H]] | |||
[[Category: Pelicic V]] | |||
[[Category: Pieulle L]] | |||
[[Category: Shahin M]] | |||
[[Category: Valette O]] |