1lk0

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{{Seed}}
 
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[[Image:1lk0.png|left|200px]]
 
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==Disulfide intermediate of C89L Arsenate reductase from pI258==
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The line below this paragraph, containing "STRUCTURE_1lk0", creates the "Structure Box" on the page.
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<StructureSection load='1lk0' size='340' side='right'caption='[[1lk0]], [[Resolution|resolution]] 1.60&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1lk0]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Staphylococcus_aureus Staphylococcus aureus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LK0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1LK0 FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.6&#8491;</td></tr>
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<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=K:POTASSIUM+ION'>K</scene></td></tr>
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{{STRUCTURE_1lk0| PDB=1lk0 | SCENE= }}
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1lk0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1lk0 OCA], [https://pdbe.org/1lk0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1lk0 RCSB], [https://www.ebi.ac.uk/pdbsum/1lk0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1lk0 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/ARSC_STAAU ARSC_STAAU] Reduces arsenate [As(V)] to arsenite [As(III)] and dephosphorylates tyrosine phosphorylated proteins, low-MW aryl phosphates and natural and synthetic acyl phosphates. Could switch between different functions in different circumstances.[HAMAP-Rule:MF_01624]
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/lk/1lk0_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</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=1lk0 ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The mechanism of pI258 arsenate reductase (ArsC) catalyzed arsenate reduction, involving its P-loop structural motif and three redox active cysteines, has been unraveled. All essential intermediates are visualized with x-ray crystallography, and NMR is used to map dynamic regions in a key disulfide intermediate. Steady-state kinetics of ArsC mutants gives a view of the crucial residues for catalysis. ArsC combines a phosphatase-like nucleophilic displacement reaction with a unique intramolecular disulfide bond cascade. Within this cascade, the formation of a disulfide bond triggers a reversible "conformational switch" that transfers the oxidative equivalents to the surface of the protein, while releasing the reduced substrate.
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===Disulfide intermediate of C89L Arsenate reductase from pI258===
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All intermediates of the arsenate reductase mechanism, including an intramolecular dynamic disulfide cascade.,Messens J, Martins JC, Van Belle K, Brosens E, Desmyter A, De Gieter M, Wieruszeski JM, Willem R, Wyns L, Zegers I Proc Natl Acad Sci U S A. 2002 Jun 25;99(13):8506-11. Epub 2002 Jun 18. PMID:12072565<ref>PMID:12072565</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 1lk0" style="background-color:#fffaf0;"></div>
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==See Also==
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The line below this paragraph, {{ABSTRACT_PUBMED_12072565}}, adds the Publication Abstract to the page
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*[[Arsenate reductase 3D structures|Arsenate reductase 3D structures]]
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(as it appears on PubMed at http://www.pubmed.gov), where 12072565 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_12072565}}
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__TOC__
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</StructureSection>
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==About this Structure==
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[[Category: Large Structures]]
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1LK0 is a 2 chains structure of sequences from [http://en.wikipedia.org/wiki/Staphylococcus_aureus Staphylococcus aureus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LK0 OCA].
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==Reference==
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<ref group="xtra">PMID:12072565</ref><references group="xtra"/>
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[[Category: Staphylococcus aureus]]
[[Category: Staphylococcus aureus]]
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[[Category: Belle, K Van.]]
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[[Category: Brosens E]]
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[[Category: Brosens, E.]]
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[[Category: De Gieter M]]
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[[Category: Desmyter, A.]]
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[[Category: Desmyter A]]
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[[Category: Gieter, M De.]]
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[[Category: Martins JC]]
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[[Category: Martins, J C.]]
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[[Category: Messens J]]
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[[Category: Messens, J.]]
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[[Category: Van Belle K]]
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[[Category: Wieruszeski, J M.]]
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[[Category: Wieruszeski JM]]
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[[Category: Willem, R.]]
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[[Category: Willem R]]
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[[Category: Wyns, L.]]
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[[Category: Wyns L]]
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[[Category: Zegers, I.]]
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[[Category: Zegers I]]
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[[Category: Disulfide cascade]]
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[[Category: P-loop]]
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[[Category: Ptpase i fold]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Feb 17 15:59:11 2009''
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Current revision

Disulfide intermediate of C89L Arsenate reductase from pI258

PDB ID 1lk0

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