2w0r: Difference between revisions
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< | ==Crystal structure of the mutated N263D YscU C-terminal domain== | ||
<StructureSection load='2w0r' size='340' side='right'caption='[[2w0r]], [[Resolution|resolution]] 1.55Å' scene=''> | |||
You may | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2w0r]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Yersinia_enterocolitica Yersinia enterocolitica]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2W0R OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2W0R 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]] 1.55Å</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=2w0r FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2w0r OCA], [https://pdbe.org/2w0r PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2w0r RCSB], [https://www.ebi.ac.uk/pdbsum/2w0r PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2w0r ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/Q56844_YEREN Q56844_YEREN] | |||
== 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/w0/2w0r_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.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=2w0r ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The inner-membrane protein YscU has an important role during the assembly of the Yersinia enterocolitica type III secretion injectisome. Its cytoplasmic domain (YscU(C)) recognizes translocators as individual substrates in the export hierarchy. Activation of YscU entails autocleavage at a conserved NPTH motif. Modification of this motif markedly changes the properties of YscU, including translocator export cessation and production of longer injectisome needles. We determined the crystal structures of the uncleaved variants N263A and N263D of YscU(C) at 2.05 A and 1.55 A resolution, respectively. The globular domain is found to consist of a central, mixed beta-sheet surrounded by alpha-helices. The NPTH motif forms a type II beta-turn connecting two beta-strands. NMR analysis of cleaved and uncleaved YscU(C) indicates that the global structure of the protein is retained in cleaved YscU(C). The structure of YscU(C) variant N263D reveals that wild type YscU(C) is poised for cleavage due to an optimal reaction geometry for nucleophilic attack of the scissile bond by the side chain of Asn263. In vivo analysis of N263Q and H266A/R314A YscU variants showed a phenotype that combines the absence of translocator secretion with normal needle-length control. Comparing the structure of YscU to those of related proteins reveals that the linker domain between the N-terminal transmembrane domain and the autocleavage domain can switch from an extended to a largely alpha-helical conformation, allowing for optimal positioning of the autocleavage domain during injectisome assembly. | |||
Structure of the type III secretion recognition protein YscU from Yersinia enterocolitica.,Wiesand U, Sorg I, Amstutz M, Wagner S, van den Heuvel J, Luhrs T, Cornelis GR, Heinz DW J Mol Biol. 2009 Jan 23;385(3):854-66. Epub 2008 Oct 19. PMID:18976663<ref>PMID:18976663</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 2w0r" style="background-color:#fffaf0;"></div> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
== | [[Category: Large Structures]] | ||
== | |||
[[Category: | |||
[[Category: Yersinia enterocolitica]] | [[Category: Yersinia enterocolitica]] | ||
[[Category: Amstutz | [[Category: Amstutz M]] | ||
[[Category: Cornelis | [[Category: Cornelis GR]] | ||
[[Category: Heinz | [[Category: Heinz DW]] | ||
[[Category: | [[Category: Luehrs T]] | ||
[[Category: | [[Category: Sorg I]] | ||
[[Category: | [[Category: Van Den Heuvel J]] | ||
[[Category: Wagner | [[Category: Wagner S]] | ||
[[Category: Wiesand | [[Category: Wiesand U]] | ||
Latest revision as of 18:39, 13 December 2023
Crystal structure of the mutated N263D YscU C-terminal domainCrystal structure of the mutated N263D YscU C-terminal domain
Structural highlights
FunctionEvolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedThe inner-membrane protein YscU has an important role during the assembly of the Yersinia enterocolitica type III secretion injectisome. Its cytoplasmic domain (YscU(C)) recognizes translocators as individual substrates in the export hierarchy. Activation of YscU entails autocleavage at a conserved NPTH motif. Modification of this motif markedly changes the properties of YscU, including translocator export cessation and production of longer injectisome needles. We determined the crystal structures of the uncleaved variants N263A and N263D of YscU(C) at 2.05 A and 1.55 A resolution, respectively. The globular domain is found to consist of a central, mixed beta-sheet surrounded by alpha-helices. The NPTH motif forms a type II beta-turn connecting two beta-strands. NMR analysis of cleaved and uncleaved YscU(C) indicates that the global structure of the protein is retained in cleaved YscU(C). The structure of YscU(C) variant N263D reveals that wild type YscU(C) is poised for cleavage due to an optimal reaction geometry for nucleophilic attack of the scissile bond by the side chain of Asn263. In vivo analysis of N263Q and H266A/R314A YscU variants showed a phenotype that combines the absence of translocator secretion with normal needle-length control. Comparing the structure of YscU to those of related proteins reveals that the linker domain between the N-terminal transmembrane domain and the autocleavage domain can switch from an extended to a largely alpha-helical conformation, allowing for optimal positioning of the autocleavage domain during injectisome assembly. Structure of the type III secretion recognition protein YscU from Yersinia enterocolitica.,Wiesand U, Sorg I, Amstutz M, Wagner S, van den Heuvel J, Luhrs T, Cornelis GR, Heinz DW J Mol Biol. 2009 Jan 23;385(3):854-66. Epub 2008 Oct 19. PMID:18976663[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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