2cye

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[[Image:2cye.png|left|200px]]
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==Crystal structure of Thioesterase complexed with coenzyme A and Zn from Thermus thermophilus HB8==
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<StructureSection load='2cye' size='340' side='right' caption='[[2cye]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2cye]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Thermus_thermophilus Thermus thermophilus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2CYE OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2CYE FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=COA:COENZYME+A'>COA</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene><br>
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<tr><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr>
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<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">TTHA1846 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=274 Thermus thermophilus])</td></tr>
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<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2cye FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2cye OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2cye RCSB], [http://www.ebi.ac.uk/pdbsum/2cye PDBsum], [http://www.topsan.org/Proteins/RSGI/2cye TOPSAN]</span></td></tr>
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<table>
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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/cy/2cye_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/chain_selection.php?pdb_ID=2ata 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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TTHA1846 is a conserved hypothetical protein from Thermus thermophilus HB8 with a molecular mass of 15.1 kDa that belongs to the thioesterase superfamily (Pfam 03061). Here, the 1.9 A resolution crystal structure of TTHA1846 from T. thermophilus is reported. The crystal structure is a dimer of dimers. Each subunit adopts the so-called hot-dog fold composed of five antiparallel beta-strands flanked on one side by a rather long alpha-helix and shares structural similarity to a number of thioesterases. Unexpectedly, TTHA1846 binds one metal ion and one ligand per subunit. The ligand density was modelled as coenzyme A (CoA). Its structure was confirmed by MALDI-TOF mass spectrometry and electron-density mapping. X-ray absorption fine-structure (XAFS) measurement of the crystal unambiguously characterized the metal ion as zinc. The zinc ion is tetrahedrally coordinated by the side chains of Asp18, His22 and Glu50 and the CoA thiol group. This is the first structural report of the interaction of CoA with a zinc ion. From structural and database analyses, it was speculated that the zinc ion may play an inhibitory role in the enzymatic activity.
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{{STRUCTURE_2cye| PDB=2cye | SCENE= }}
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Structure of the putative thioesterase protein TTHA1846 from Thermus thermophilus HB8 complexed with coenzyme A and a zinc ion.,Hosaka T, Murayama K, Kato-Murayama M, Urushibata A, Akasaka R, Terada T, Shirouzu M, Kuramitsu S, Yokoyama S Acta Crystallogr D Biol Crystallogr. 2009 Aug;65(Pt 8):767-76. Epub 2009, Jul 10. PMID:19622860<ref>PMID:19622860</ref>
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===Crystal structure of Thioesterase complexed with coenzyme A and Zn from Thermus thermophilus HB8===
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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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{{ABSTRACT_PUBMED_19622860}}
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== References ==
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<references/>
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==About this Structure==
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__TOC__
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[[2cye]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Thermus_thermophilus Thermus thermophilus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2CYE OCA].
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</StructureSection>
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==Reference==
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<ref group="xtra">PMID:019622860</ref><references group="xtra"/>
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[[Category: Thermus thermophilus]]
[[Category: Thermus thermophilus]]
[[Category: Handa, N.]]
[[Category: Handa, N.]]

Revision as of 02:48, 30 September 2014

Crystal structure of Thioesterase complexed with coenzyme A and Zn from Thermus thermophilus HB8

2cye, resolution 1.90Å

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