2cua

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(New page: 200px<br /><applet load="2cua" size="450" color="white" frame="true" align="right" spinBox="true" caption="2cua, resolution 1.60&Aring;" /> '''THE CUA DOMAIN OF CY...)
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[[Image:2cua.jpg|left|200px]]<br /><applet load="2cua" size="450" color="white" frame="true" align="right" spinBox="true"
 
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caption="2cua, resolution 1.60&Aring;" />
 
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'''THE CUA DOMAIN OF CYTOCHROME BA3 FROM THERMUS THERMOPHILUS'''<br />
 
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==Overview==
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==THE CUA DOMAIN OF CYTOCHROME BA3 FROM THERMUS THERMOPHILUS==
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The structure of the CuA-containing, extracellular domain of Thermus, thermophilus ba3-type cytochrome c oxidase has been determined to 1.6 A, resolution using multiple X-ray wavelength anomalous dispersion (MAD). The, Cu2S2 cluster forms a planar rhombus with a copper-copper distance of 2.51, +/- 0.03 A. X-ray absorption fine-structure (EXAFS) studies show that this, distance is unchanged by crystallization. The CuA center is asymmetrical;, one copper is tetrahedrally coordinated to two bridging cysteine, thiolates, one histidine nitrogen and one methionine sulfur, while the, other is trigonally coordinated by the two cysteine thiolates and a, histidine nitrogen. Combined sequence-structure alignment of amino acid, sequences reveals conserved interactions between cytochrome c oxidase, subunits I and II.
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<StructureSection load='2cua' size='340' side='right'caption='[[2cua]], [[Resolution|resolution]] 1.60&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2cua]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermus_thermophilus Thermus thermophilus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2CUA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2CUA FirstGlance]. <br>
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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=CUA:DINUCLEAR+COPPER+ION'>CUA</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
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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=2cua FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2cua OCA], [https://pdbe.org/2cua PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2cua RCSB], [https://www.ebi.ac.uk/pdbsum/2cua PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2cua ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/COX2_THETH COX2_THETH] Subunits I and II form the functional core of the enzyme complex. Electrons originating in cytochrome c are transferred via heme a and Cu(A) to the binuclear center formed by heme a3 and Cu(B).
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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/cu/2cua_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.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=2cua 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 structure of the CuA-containing, extracellular domain of Thermus thermophilus ba3-type cytochrome c oxidase has been determined to 1.6 A resolution using multiple X-ray wavelength anomalous dispersion (MAD). The Cu2S2 cluster forms a planar rhombus with a copper-copper distance of 2.51 +/- 0.03 A. X-ray absorption fine-structure (EXAFS) studies show that this distance is unchanged by crystallization. The CuA center is asymmetrical; one copper is tetrahedrally coordinated to two bridging cysteine thiolates, one histidine nitrogen and one methionine sulfur, while the other is trigonally coordinated by the two cysteine thiolates and a histidine nitrogen. Combined sequence-structure alignment of amino acid sequences reveals conserved interactions between cytochrome c oxidase subunits I and II.
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==About this Structure==
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The CuA domain of Thermus thermophilus ba3-type cytochrome c oxidase at 1.6 A resolution.,Williams PA, Blackburn NJ, Sanders D, Bellamy H, Stura EA, Fee JA, McRee DE Nat Struct Biol. 1999 Jun;6(6):509-16. PMID:10360350<ref>PMID:10360350</ref>
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2CUA is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Thermus_thermophilus Thermus thermophilus] with ZN and CUA as [http://en.wikipedia.org/wiki/ligands ligands]. Active as [http://en.wikipedia.org/wiki/Cytochrome-c_oxidase Cytochrome-c oxidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.9.3.1 1.9.3.1] Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=2CUA OCA].
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==Reference==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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The CuA domain of Thermus thermophilus ba3-type cytochrome c oxidase at 1.6 A resolution., Williams PA, Blackburn NJ, Sanders D, Bellamy H, Stura EA, Fee JA, McRee DE, Nat Struct Biol. 1999 Jun;6(6):509-16. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=10360350 10360350]
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</div>
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[[Category: Cytochrome-c oxidase]]
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<div class="pdbe-citations 2cua" style="background-color:#fffaf0;"></div>
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[[Category: Single protein]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Large Structures]]
[[Category: Thermus thermophilus]]
[[Category: Thermus thermophilus]]
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[[Category: Bellamy, H.]]
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[[Category: Bellamy H]]
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[[Category: Blackburn, N.J.]]
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[[Category: Blackburn NJ]]
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[[Category: Fee, J.A.]]
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[[Category: Fee JA]]
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[[Category: Mcree, D.E.]]
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[[Category: Mcree DE]]
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[[Category: Sanders, D.]]
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[[Category: Sanders D]]
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[[Category: Stura, E.A.]]
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[[Category: Stura EA]]
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[[Category: Williams, P.A.]]
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[[Category: Williams PA]]
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[[Category: CUA]]
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[[Category: ZN]]
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[[Category: cua center]]
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''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Wed Nov 21 09:16:06 2007''
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THE CUA DOMAIN OF CYTOCHROME BA3 FROM THERMUS THERMOPHILUS

PDB ID 2cua

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