2k0r: Difference between revisions

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[[Image:2k0r.png|left|200px]]
==Solution structure of the C103S mutant of the N-terminal Domain of DsbD from Neisseria meningitidis==
<StructureSection load='2k0r' size='340' side='right' caption='[[2k0r]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2k0r]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Neisseria_meningitidis_serogroup_b Neisseria meningitidis serogroup b]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2K0R OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2K0R FirstGlance]. <br>
</td></tr><tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">dsbD, NMB1519 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=491 Neisseria meningitidis serogroup B])</td></tr>
<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Protein-disulfide_reductase Protein-disulfide reductase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.8.1.8 1.8.1.8] </span></td></tr>
<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2k0r FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2k0r OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2k0r RCSB], [http://www.ebi.ac.uk/pdbsum/2k0r PDBsum]</span></td></tr>
<table>
== 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/k0/2k0r_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/chain_selection.php?pdb_ID=2ata ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The DsbD protein is essential for electron transfer from the cytoplasm to the periplasm of Gram-negative bacteria. Its N-terminal domain dispatches electrons coming from cytoplasmic thioredoxin (Trx), via its central transmembrane and C-terminal domains, to its periplasmic partners: DsbC, DsbE/CcmG, and DsbG. Previous structural studies described the latter proteins as Trx-like folds possessing a characteristic C-X-X-C motif able to generate a disulfide bond upon oxidation. The Escherichia coli nDsbD displays an immunoglobulin-like fold in which two cysteine residues (Cys103 and Cys109) allow a disulfide bond exchange with its biological partners.We have determined the structure in solution and the backbone dynamics of the C103S mutant of the N-terminal domain of DsbD from Neisseria meningitidis. Our results highlight significant structural changes concerning the beta-sheets and the local topology of the active site compared with the oxidized form of the E. coli nDsbD. The structure reveals a "cap loop" covering the active site, similar to the oxidized E. coli nDsbD X-ray structure. However, regions featuring enhanced mobility were observed both near to and distant from the active site, revealing a capacity of structural adjustments in the active site and in putative interaction areas with nDsbD biological partners. Results are discussed in terms of functional consequences.


{{STRUCTURE_2k0r|  PDB=2k0r  |  SCENE=  }}
Solution Structure and Backbone Dynamics of the Cysteine 103 to Serine Mutant of the N-Terminal Domain of DsbD from Neisseria meningitides.,Quinternet M, Tsan P, Selme L, Beaufils C, Jacob C, Boschi-Muller S, Averlant-Petit MC, Branlant G, Cung MT Biochemistry. 2008 Nov 5. PMID:18983169<ref>PMID:18983169</ref>


===Solution structure of the C103S mutant of the N-terminal Domain of DsbD from Neisseria meningitidis===
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 
</div>
{{ABSTRACT_PUBMED_18983169}}
== References ==
 
<references/>
==About this Structure==
__TOC__
[[2k0r]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Neisseria_meningitidis_serogroup_b Neisseria meningitidis serogroup b]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2K0R OCA].
</StructureSection>
 
==Reference==
<ref group="xtra">PMID:018983169</ref><references group="xtra"/>
[[Category: Neisseria meningitidis serogroup b]]
[[Category: Neisseria meningitidis serogroup b]]
[[Category: Protein-disulfide reductase]]
[[Category: Protein-disulfide reductase]]