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| | ==Crystal Structure of S.CueP== | | ==Crystal Structure of S.CueP== |
| - | <StructureSection load='4gqz' size='340' side='right' caption='[[4gqz]], [[Resolution|resolution]] 1.80Å' scene=''> | + | <StructureSection load='4gqz' size='340' side='right'caption='[[4gqz]], [[Resolution|resolution]] 1.80Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[4gqz]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Salty Salty]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4GQZ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4GQZ FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[4gqz]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Salmonella_enterica_subsp._enterica_serovar_Typhimurium_str._LT2 Salmonella enterica subsp. enterica serovar Typhimurium str. LT2]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4GQZ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4GQZ FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene></td></tr> | + | </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>, <scene name='pdbligand=CSO:S-HYDROXYCYSTEINE'>CSO</scene>, <scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr> |
| - | <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=CSO:S-HYDROXYCYSTEINE'>CSO</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=4gqz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4gqz OCA], [https://pdbe.org/4gqz PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4gqz RCSB], [https://www.ebi.ac.uk/pdbsum/4gqz PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4gqz ProSAT]</span></td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">STM3650 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=99287 SALTY])</td></tr>
| + | |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4gqz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4gqz OCA], [http://pdbe.org/4gqz PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4gqz RCSB], [http://www.ebi.ac.uk/pdbsum/4gqz PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4gqz ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | + | == Function == |
| | + | [https://www.uniprot.org/uniprot/Q8ZL99_SALTY Q8ZL99_SALTY] |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Salty]] | + | [[Category: Large Structures]] |
| - | [[Category: Ha, N C]] | + | [[Category: Salmonella enterica subsp. enterica serovar Typhimurium str. LT2]] |
| - | [[Category: Yoon, B Y]] | + | [[Category: Ha NC]] |
| - | [[Category: Copper_resistance]] | + | [[Category: Yoon BY]] |
| - | [[Category: Cuep]]
| + | |
| - | [[Category: Metal binding protein]]
| + | |
| - | [[Category: V-shape dimer]]
| + | |
| Structural highlights
Function
Q8ZL99_SALTY
Publication Abstract from PubMed
CueP was initially identified as a copper-resistance gene in Salmonella enterica serovar Typhimurium, which has evolved to survive in the phagosomes of macrophages. Recently, CueP was determined to be a periplasmic copper-binding protein and has been implicated in the transfer of copper ions to SodCII in the periplasm. In this study, the crystal structure of CueP has been determined, revealing a V-shaped dimeric structure. The conserved cysteine and histidine residues are clustered on the surface of one side of the C-terminal domain, suggesting that this cysteine- and histidine-rich region is related to the function of CueP. LC-MS/MS analysis established the presence of a disulfide bond between Cys96 and Cys176 under aerobic conditions. Subsequent biophysical analyses showed that the CueP protein binds copper and zinc, and the mutation of Cys104 to serine (C104S) dramatically reduced the binding affinity for copper and zinc, suggesting that the cysteine- and histidine-rich cluster is responsible for copper binding. This study provides a structural basis for the participation of CueP in the resistance of the intracellular pathogen Salmonella to copper.
Structure of the periplasmic copper-binding protein CueP from Salmonella enterica serovar Typhimurium.,Yoon BY, Kim YH, Kim N, Yun BY, Kim JS, Lee JH, Cho HS, Lee K, Ha NC Acta Crystallogr D Biol Crystallogr. 2013 Oct;69(Pt 10):1867-75. doi:, 10.1107/S090744491301531X. Epub 2013 Sep 20. PMID:24100307[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Yoon BY, Kim YH, Kim N, Yun BY, Kim JS, Lee JH, Cho HS, Lee K, Ha NC. Structure of the periplasmic copper-binding protein CueP from Salmonella enterica serovar Typhimurium. Acta Crystallogr D Biol Crystallogr. 2013 Oct;69(Pt 10):1867-75. doi:, 10.1107/S090744491301531X. Epub 2013 Sep 20. PMID:24100307 doi:http://dx.doi.org/10.1107/S090744491301531X
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