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[[Image:3ci0.png|left|200px]]


{{STRUCTURE_3ci0| PDB=3ci0 | SCENE= }}
==The Crystal Structure of the GspK-GspI-GspJ complex from enterotoxigenic Escherichia coli Type 2 Secretion System==
<StructureSection load='3ci0' size='340' side='right'caption='[[3ci0]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[3ci0]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3CI0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3CI0 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]] 2.2&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></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=3ci0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3ci0 OCA], [https://pdbe.org/3ci0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3ci0 RCSB], [https://www.ebi.ac.uk/pdbsum/3ci0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3ci0 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/GSPI_ECOLX GSPI_ECOLX] Component of the type II secretion system required for the energy-dependent secretion of extracellular factors such as proteases and toxins from the periplasm. Part of the pseudopilus tip complex that is critical for the recognition and binding of secretion substrates.[UniProtKB:Q00516]
== 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/ci/3ci0_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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/main_output.php?pdb_ID=3ci0 ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Gram-negative bacteria translocate various proteins including virulence factors across their outer membrane via type 2 secretion systems (T2SSs). T2SSs are thought to contain a pseudopilus, a subcomplex formed by one major and several minor pseudopilins. We report the crystal structure of the complex formed by three minor pseudopilins from enterotoxigenic Escherichia coli. The GspK-GspI-GspJ complex has quasihelical characteristics and an architecture consistent with a localization at the pseudopilus tip. The alpha-domain of GspK has a previously unobserved fold with an unexpected dinuclear metal binding site. The area surrounding its disulfide bridge is conserved and might interact with other T2SS components or with secreted proteins.


===The Crystal Structure of the GspK-GspI-GspJ complex from enterotoxigenic Escherichia coli Type 2 Secretion System===
Structure of the GspK-GspI-GspJ complex from the enterotoxigenic Escherichia coli type 2 secretion system.,Korotkov KV, Hol WG Nat Struct Mol Biol. 2008 May;15(5):462-8. Epub 2008 Apr 27. PMID:18438417<ref>PMID:18438417</ref>


{{ABSTRACT_PUBMED_18438417}}
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 
</div>
==About this Structure==
<div class="pdbe-citations 3ci0" style="background-color:#fffaf0;"></div>
[[3ci0]] is a 3 chain structure of [[Pseudopilin]] with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3CI0 OCA].


==See Also==
==See Also==
*[[Pseudopilin|Pseudopilin]]
*[[Pseudopilin|Pseudopilin]]
 
== References ==
==Reference==
<references/>
<ref group="xtra">PMID:018438417</ref><references group="xtra"/>
__TOC__
</StructureSection>
[[Category: Escherichia coli]]
[[Category: Escherichia coli]]
[[Category: Hol, W G.J.]]
[[Category: Large Structures]]
[[Category: Korotkov, K V.]]
[[Category: Hol WGJ]]
[[Category: General secretory pathway]]
[[Category: Korotkov KV]]
[[Category: Methylation]]
[[Category: Protein transport]]
[[Category: Pseudopilus]]
[[Category: Type 4 pilin biogenesis]]
Retrieved from "https://proteopedia.org/3ci0"