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2xqz

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[[Image:2xqz.png|left|200px]]
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==NEUTRON STRUCTURE OF THE PERDEUTERATED TOHO-1 R274N R276N DOUBLE MUTANT BETA-LACTAMASE==
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<StructureSection load='2xqz' size='340' side='right' caption='[[2xqz]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2xqz]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2XQZ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2XQZ FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=DOD:DEUTERATED+WATER'>DOD</scene></td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1iyp|1iyp]], [[1we4|1we4]], [[2wyx|2wyx]], [[1iys|1iys]], [[1iyo|1iyo]], [[2xr0|2xr0]], [[1bza|1bza]], [[1iyq|1iyq]]</td></tr>
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<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Beta-lactamase Beta-lactamase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.5.2.6 3.5.2.6] </span></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2xqz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2xqz OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2xqz RCSB], [http://www.ebi.ac.uk/pdbsum/2xqz PDBsum]</span></td></tr>
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</table>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Room temperature neutron diffraction data of the fully perdeuterated Toho-1 R274N/R276N double mutant beta-lactamase in the apo form were used to visualize deuterium atoms within the active site of the enzyme. This perdeuterated neutron structure of the Toho-1 R274N/R276N reveals the clearest picture yet of the ground-state active site protonation states and the complete hydrogen-bonding network in a beta-lactamase enzyme. The ground-state active site protonation states detailed in this neutron diffraction study are consistent with previous high-resolution X-ray studies that support the role of Glu166 as the general base during the acylation reaction in the class A beta-lactamase reaction pathway.
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{{STRUCTURE_2xqz| PDB=2xqz | SCENE= }}
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The active site protonation states of perdeuterated Toho-1 beta-lactamase determined by neutron diffraction support a role for Glu166 as the general base in acylation.,Tomanicek SJ, Wang KK, Weiss KL, Blakeley MP, Cooper J, Chen Y, Coates L FEBS Lett. 2010 Dec 17. PMID:21168411<ref>PMID:21168411</ref>
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===NEUTRON STRUCTURE OF THE PERDEUTERATED TOHO-1 R274N R276N DOUBLE MUTANT BETA-LACTAMASE===
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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_21168411}}
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==About this Structure==
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[[2xqz]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2XQZ OCA].
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==See Also==
==See Also==
*[[Beta-lactamase|Beta-lactamase]]
*[[Beta-lactamase|Beta-lactamase]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:021168411</ref><references group="xtra"/>
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__TOC__
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</StructureSection>
[[Category: Beta-lactamase]]
[[Category: Beta-lactamase]]
[[Category: Escherichia coli]]
[[Category: Escherichia coli]]

Revision as of 13:06, 22 October 2014

NEUTRON STRUCTURE OF THE PERDEUTERATED TOHO-1 R274N R276N DOUBLE MUTANT BETA-LACTAMASE

2xqz, resolution 2.10Å

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