3qwa
From Proteopedia
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| - | '''Unreleased structure''' | ||
| - | + | ==Crystal structure of Saccharomyces cerevisiae Zeta-crystallin-like quinone oxidoreductase Zta1== | |
| + | <StructureSection load='3qwa' size='340' side='right'caption='[[3qwa]], [[Resolution|resolution]] 2.00Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[3qwa]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae_S288C Saccharomyces cerevisiae S288C]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3QWA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3QWA FirstGlance]. <br> | ||
| + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2Å</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=3qwa FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3qwa OCA], [https://pdbe.org/3qwa PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3qwa RCSB], [https://www.ebi.ac.uk/pdbsum/3qwa PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3qwa ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/QOR_YEAST QOR_YEAST] | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Quinone oxidoreductase (QOR EC1.6.5.5) catalyzes the reduction of quinone to hydroxyquinone using NADPH as a cofactor. Here we present the crystal structure of the zeta-crystallin-like QOR Zta1 from Saccharomycescerevisiae in apo-form at 2.00 A and complexed with NADPH at 1.59 A resolution. Zta1 forms a homodimer, with each subunit containing a catalytic and a cofactor-binding domain. Upon NADPH binding to the interdomain cleft, the two domains shift towards each other, producing a better fit for NADPH, and tightening substrate binding. Computational simulation combined with site-directed mutagenesis and enzymatic activity analysis defined a potential quinone-binding site that determines the stringent substrate specificity. Moreover, multiple-sequence alignment and kinetics assays implied that a single-residue change from Arg in lower organisms to Gly in vertebrates possibly resulted in elevation of enzymatic activity of zeta-crystallin-like QORs throughout evolution. | ||
| - | + | Structural insights into the cofactor-assisted substrate recognition of yeast quinone oxidoreductase Zta1.,Guo PC, Ma XX, Bao ZZ, Ma JD, Chen Y, Zhou CZ J Struct Biol. 2011 Oct;176(1):112-8. Epub 2011 Jul 26. PMID:21820057<ref>PMID:21820057</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| + | </div> | ||
| + | <div class="pdbe-citations 3qwa" style="background-color:#fffaf0;"></div> | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Saccharomyces cerevisiae S288C]] | ||
| + | [[Category: Bao ZZ]] | ||
| + | [[Category: Chen YX]] | ||
| + | [[Category: Guo PC]] | ||
| + | [[Category: Ma XX]] | ||
| + | [[Category: Zhou CZ]] | ||
Current revision
Crystal structure of Saccharomyces cerevisiae Zeta-crystallin-like quinone oxidoreductase Zta1
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