View source for 5g2f


==Type IV-like competence pilin TTHA1222 from Thermus thermophilus==
<StructureSection load='5g2f' size='340' side='right'caption='[[5g2f]], [[Resolution|resolution]] 1.85&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5g2f]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermus_thermophilus_HB8 Thermus thermophilus HB8]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5G2F OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5G2F 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]] 1.85&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</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=5g2f FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5g2f OCA], [https://pdbe.org/5g2f PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5g2f RCSB], [https://www.ebi.ac.uk/pdbsum/5g2f PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5g2f ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/Q5SIZ2_THET8 Q5SIZ2_THET8] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Type IV pilins are proteins which form polymers that extend from the surface of the bacterial cell; they are involved in mediating a wide variety of functions, including adhesion, motility and natural competence. Here we describe the determination of the crystal structures of three type IVa pilins proteins from the thermophile Thermus thermophilus. They form part of a cluster of pilus-like proteins within the genome; our results show that one, Tt1222, is very closely related to the main structural type IV pilin, PilA4. The other two, Tt1218 and Tt1219, also adopt canonical pilin-like folds but, interestingly, are most closely related to the structures of the type II secretion system pseudopilins, EpsI/GspI and XcpW/GspJ. GspI and GspJ have been shown to form a complex with another pseudopilin, GspK, and this heterotrimeric complex is known to play a key role in initiating assembly of a pseudopilus which is thought to drive the secretion process. The structural similarity of Tt1218 and Tt1219 to GspI and GspJ suggests that they might work in a similar way, to deliver functions associated with type IV pili in T. thermophilus, such as natural competence.

Structures of type IV pilins from Thermus thermophilus demonstrate similarities with type II secretion system pseudopilins.,Karuppiah V, Thistlethwaite A, Derrick JP J Struct Biol. 2016 Sep 6. pii: S1047-8477(16)30175-7. doi:, 10.1016/j.jsb.2016.08.006. PMID:27612581<ref>PMID:27612581</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 5g2f" style="background-color:#fffaf0;"></div>
== References ==
<references/>
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</StructureSection>
[[Category: Large Structures]]
[[Category: Thermus thermophilus HB8]]
[[Category: Derrick JP]]
[[Category: Karuppiah V]]