View source for 4oes


==Crystal structure of NikA from Brucella suis in complex with Fe(III)-EDTA==
<StructureSection load='4oes' size='340' side='right'caption='[[4oes]], [[Resolution|resolution]] 1.95&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4oes]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Brucella_suis Brucella suis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4OES OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4OES 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]] 1.951&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=EDT:{[-(BIS-CARBOXYMETHYL-AMINO)-ETHYL]-CARBOXYMETHYL-AMINO}-ACETIC+ACID'>EDT</scene>, <scene name='pdbligand=FE:FE+(III)+ION'>FE</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <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=4oes FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4oes OCA], [https://pdbe.org/4oes PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4oes RCSB], [https://www.ebi.ac.uk/pdbsum/4oes PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4oes ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/Q9AL82_BRUSS Q9AL82_BRUSS] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
In human pathogenic bacteria, nickel is required for the activation of two enzymes, urease and [NiFe]-hydrogenase, necessary for host infection. Acquisition of Ni(II) is mediated by either permeases or ABC-importers, the latter including a subclass that involves an extracytoplasmic nickel-binding protein, Ni-BP. This study reports on the structure of three Ni-BPs from a diversity of human pathogens and on the existence of three new nickel-binding motifs. These are different from that previously described for Escherichia coli Ni-BP NikA, known to bind nickel via a nickelophore, and indicate a variegated ligand selectivity for Ni-BPs. The structures are consistent with ligand affinities measured in solution by calorimetry and challenge the hypothesis of a general requirement of nickelophores for nickel uptake by canonical ABC importers. Phylogenetic analyses showed that Ni-BPs have different evolutionary origins and emerged independently from peptide-binding proteins, possibly explaining the promiscuous behavior of this class of Ni(II) carriers.

Promiscuous Nickel Import in Human Pathogens: Structure, Thermodynamics, and Evolution of Extracytoplasmic Nickel-Binding Proteins.,Lebrette H, Brochier-Armanet C, Zambelli B, de Reuse H, Borezee-Durant E, Ciurli S, Cavazza C Structure. 2014 Sep 3. pii: S0969-2126(14)00243-3. doi:, 10.1016/j.str.2014.07.012. PMID:25199691<ref>PMID:25199691</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 4oes" style="background-color:#fffaf0;"></div>

==See Also==
*[[ABC transporter 3D structures|ABC transporter 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Brucella suis]]
[[Category: Large Structures]]
[[Category: Cavazza C]]
[[Category: Lebrette H]]