3cfi: Difference between revisions
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< | ==Nanobody-aided structure determination of the EPSI:EPSJ pseudopilin heterdimer from Vibrio Vulnificus== | ||
<StructureSection load='3cfi' size='340' side='right'caption='[[3cfi]], [[Resolution|resolution]] 2.58Å' scene=''> | |||
You may | == Structural highlights == | ||
<table><tr><td colspan='2'>[[3cfi]] is a 12 chain structure with sequence from [https://en.wikipedia.org/wiki/Lama_glama Lama glama] and [https://en.wikipedia.org/wiki/Vibrio_vulnificus Vibrio vulnificus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3CFI OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3CFI 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]] 2.58Å</td></tr> | |||
- | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</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=3cfi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3cfi OCA], [https://pdbe.org/3cfi PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3cfi RCSB], [https://www.ebi.ac.uk/pdbsum/3cfi PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3cfi ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/Q7MPZ1_VIBVY Q7MPZ1_VIBVY] | |||
== 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/cf/3cfi_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=3cfi ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Pseudopilins form the central pseudopilus of the sophisticated bacterial type 2 secretion systems. The crystallization of the EpsI:EpsJ pseudopilin heterodimer from Vibrio vulnificus was greatly accelerated by the use of nanobodies, which are the smallest antigen-binding fragments derived from heavy-chain only camelid antibodies. Seven anti-EpsI:EpsJ nanobodies were generated and co-crystallization of EpsI:EpsJ nanobody complexes yielded several crystal forms very rapidly. In the structure solved, the nanobodies are arranged in planes throughout the crystal lattice, linking layers of EpsI:EpsJ heterodimers. The EpsI:EpsJ dimer observed confirms a right-handed architecture of the pseudopilus, but, compared to a previous structure of the EpsI:EpsJ heterodimer, EpsI differs 6 degrees in orientation with respect to EpsJ; one loop of EpsJ is shifted by approximately 5A due to interactions with the nanobody; and a second loop of EpsJ underwent a major change of 17A without contacts with the nanobody. Clearly, nanobodies accelerate dramatically the crystallization of recalcitrant protein complexes and can reveal conformational flexibility not observed before. | |||
Nanobody-aided structure determination of the EpsI:EpsJ pseudopilin heterodimer from Vibrio vulnificus.,Lam AY, Pardon E, Korotkov KV, Hol WG, Steyaert J J Struct Biol. 2009 Apr;166(1):8-15. Epub 2008 Dec 10. PMID:19118632<ref>PMID:19118632</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 3cfi" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Pseudopilin|Pseudopilin]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
== | |||
== | |||
[[Category: Lama glama]] | [[Category: Lama glama]] | ||
[[Category: Large Structures]] | |||
[[Category: Vibrio vulnificus]] | [[Category: Vibrio vulnificus]] | ||
[[Category: Hol | [[Category: Hol WGJ]] | ||
[[Category: Korotkov | [[Category: Korotkov KV]] | ||
[[Category: Lam | [[Category: Lam AY]] | ||
[[Category: Pardon | [[Category: Pardon E]] | ||
[[Category: Steyaert | [[Category: Steyaert J]] | ||