4j3o: Difference between revisions
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New page: '''Unreleased structure''' The entry 4j3o is ON HOLD Authors: Geibel, S., Waksman, G. Description: Crystal structure of the FimD usher traversed by the pilus tip complex assembly compo... |
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The | ==Crystal structure of the FimD usher traversed by the pilus tip complex assembly composed of FimC:FimF:FimG:FimH== | ||
<StructureSection load='4j3o' size='340' side='right'caption='[[4j3o]], [[Resolution|resolution]] 3.80Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[4j3o]] is a 5 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli_K-12 Escherichia coli K-12]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4J3O OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4J3O FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.8Å</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=4j3o FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4j3o OCA], [https://pdbe.org/4j3o PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4j3o RCSB], [https://www.ebi.ac.uk/pdbsum/4j3o PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4j3o ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/FIMH_ECOLI FIMH_ECOLI] Involved in regulation of length and mediation of adhesion of type 1 fimbriae (but not necessary for the production of fimbriae). Adhesin responsible for the binding to D-mannose. It is laterally positioned at intervals in the structure of the type 1 fimbriae. In order to integrate FimH in the fimbriae FimF and FimG are needed. | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Type 1 pili, produced by uropathogenic Escherichia coli, are multisubunit fibres crucial in recognition of and adhesion to host tissues. During pilus biogenesis, subunits are recruited to an outer membrane assembly platform, the FimD usher, which catalyses their polymerization and mediates pilus secretion. The recent determination of the crystal structure of an initiation complex provided insight into the initiation step of pilus biogenesis resulting in pore activation, but very little is known about the elongation steps that follow. Here, to address this question, we determine the structure of an elongation complex in which the tip complex assembly composed of FimC, FimF, FimG and FimH passes through FimD. This structure demonstrates the conformational changes required to prevent backsliding of the nascent pilus through the FimD pore and also reveals unexpected properties of the usher pore. We show that the circular binding interface between the pore lumen and the folded substrate participates in transport by defining a low-energy pathway along which the nascent pilus polymer is guided during secretion. | |||
Structural and energetic basis of folded-protein transport by the FimD usher.,Geibel S, Procko E, Hultgren SJ, Baker D, Waksman G Nature. 2013 Apr 11;496(7444):243-6. doi: 10.1038/nature12007. PMID:23579681<ref>PMID:23579681</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 4j3o" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Adhesin 3D structures|Adhesin 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Escherichia coli K-12]] | |||
[[Category: Large Structures]] | |||
[[Category: Geibel S]] | |||
[[Category: Waksman G]] | |||
Latest revision as of 07:04, 27 November 2024
Crystal structure of the FimD usher traversed by the pilus tip complex assembly composed of FimC:FimF:FimG:FimH
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