View source for 3epv


==X-ray Structure of the Metal-sensor CnrX in both the Apo- and Copper-bound Forms==
<StructureSection load='3epv' size='340' side='right'caption='[[3epv]], [[Resolution|resolution]] 1.74&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[3epv]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Cupriavidus_metallidurans_CH34 Cupriavidus metallidurans CH34]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3EPV OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3EPV 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]] 1.742&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CU:COPPER+(II)+ION'>CU</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=3epv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3epv OCA], [https://pdbe.org/3epv PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3epv RCSB], [https://www.ebi.ac.uk/pdbsum/3epv PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3epv ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/CNRR_CUPMC CNRR_CUPMC] CnrH alone is able to activate cnr expression, while both CnrY and CrnR (CnrX) are needed for nickel induction of CnrH (PubMed:10671463). Has been suggested (PubMed:10671464) to bind nickel.<ref>PMID:10671463</ref> <ref>PMID:10671464</ref> 
== 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/ep/3epv_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=3epv ConSurf].
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== Publication Abstract from PubMed ==
Both the X-ray structures of the apo- and the copper-bound forms of the metal-sensor domain (residues 31-148) of CnrX from Cupriavidus metallidurans CH34 were obtained at 1.74A resolution from a selenomethionine derivative. This four-helix hooked-hairpin is the first structure of a metal-sensor in an ECF-type signaling pathway. The copper ion is bound in a type 2-like center with a 3N1O coordination in the equatorial plane and shows an unprecedented remote fifth axial ligand with Met93 contributing a weak S-Cu bond. The signal onset cannot be explained by conformational changes associated with CnrX metallation.

X-ray structure of the metal-sensor CnrX in both the apo- and copper-bound forms.,Pompidor G, Maillard AP, Girard E, Gambarelli S, Kahn R, Coves J FEBS Lett. 2008 Nov 26;582(28):3954-8. Epub 2008 Nov 4. PMID:18992246<ref>PMID:18992246</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Cupriavidus metallidurans CH34]]
[[Category: Large Structures]]
[[Category: Coves J]]
[[Category: Gambarelli S]]
[[Category: Girard E]]
[[Category: Kahn R]]
[[Category: Maillard AP]]
[[Category: Pompidor G]]