2zk7

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{{STRUCTURE_2zk7| PDB=2zk7 | SCENE= }}
 
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===Structure of a C-terminal deletion mutant of Thermoplasma acidophilum aldohexose dehydrogenase (AldT)===
 
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{{ABSTRACT_PUBMED_19089950}}
 
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==About this Structure==
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==Structure of a C-terminal deletion mutant of Thermoplasma acidophilum aldohexose dehydrogenase (AldT)==
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[[2zk7]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/"thermoplasma_acidophila"_(sic)_darland_et_al._1970 "thermoplasma acidophila" (sic) darland et al. 1970]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ZK7 OCA].
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<StructureSection load='2zk7' size='340' side='right'caption='[[2zk7]], [[Resolution|resolution]] 2.71&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2zk7]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermoplasma_acidophilum Thermoplasma acidophilum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ZK7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2ZK7 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]] 2.71&#8491;</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=2zk7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2zk7 OCA], [https://pdbe.org/2zk7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2zk7 RCSB], [https://www.ebi.ac.uk/pdbsum/2zk7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2zk7 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/Q9HK51_THEAC Q9HK51_THEAC]
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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/zk/2zk7_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=2zk7 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 D-aldohexose dehydrogenase from the thermoacidophilic archaeon Thermoplasma acidophilum (AldT) is a homotetrameric enzyme that catalyzes the oxidation of several D-aldohexoses, especially D-mannose. AldT comprises a unique C-terminal tail motif (residues 247-255) that shuts the active-site pocket of the neighboring subunit. The functional role of the C-terminal tail of AldT has been investigated using mutational and crystallographic analyses. A total of four C-terminal deletion mutants (Delta254, Delta253, Delta252, and Delta249) and two site-specific mutants (Y86G and P254G) were expressed by Escherichia coli and purified. Enzymatic characterization of these mutants revealed that the C-terminal tail is a requisite and that the interaction between Tyr86 and Pro254 is critical for enzyme activity. The crystal structure of the Delta249 mutant was also determined. The structure showed that the active-site loops undergo a significant conformational change, which leads to the structural deformation of the substrate-binding pocket. Proteins 2009. (c) 2008 Wiley-Liss, Inc.
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==Reference==
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C-terminal tail derived from the neighboring subunit is critical for the activity of Thermoplasma acidophilumD-aldohexose dehydrogenase.,Nishioka T, Yasutake Y, Nishiya Y, Tamura N, Tamura T Proteins. 2008 Oct 21. PMID:19089950<ref>PMID:19089950</ref>
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<ref group="xtra">PMID:019089950</ref><references group="xtra"/><references/>
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[[Category: Nishioka, T.]]
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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[[Category: Nishiya, Y.]]
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</div>
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[[Category: Tamura, N.]]
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<div class="pdbe-citations 2zk7" style="background-color:#fffaf0;"></div>
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[[Category: Tamura, T.]]
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== References ==
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[[Category: Yasutake, Y.]]
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<references/>
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[[Category: Oxidoreductase]]
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__TOC__
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[[Category: Rossmann fold]]
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</StructureSection>
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[[Category: Large Structures]]
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[[Category: Thermoplasma acidophilum]]
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[[Category: Nishioka T]]
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[[Category: Nishiya Y]]
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[[Category: Tamura N]]
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[[Category: Tamura T]]
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[[Category: Yasutake Y]]

Current revision

Structure of a C-terminal deletion mutant of Thermoplasma acidophilum aldohexose dehydrogenase (AldT)

PDB ID 2zk7

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