2ww3

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[[Image:2ww3.png|left|200px]]
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==STRUCTURE OF THE FAMILY GH92 INVERTING MANNOSIDASE BT3990 FROM BACTEROIDES THETAIOTAOMICRON VPI-5482 IN COMPLEX WITH THIOMANNOBIOSIDE==
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<StructureSection load='2ww3' size='340' side='right' caption='[[2ww3]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2ww3]] is a 6 chain structure with sequence from [http://en.wikipedia.org/wiki/Bacteroides_thetaiotaomicron Bacteroides thetaiotaomicron]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2WW3 OCA]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=SMD:METHYL-2-S-(ALPHA-D-MANNOPYRANOSYL)-2-THIO-ALPHA-D-MANNOPYRANOSIDE'>SMD</scene><br>
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<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2wx8|2wx8]], [[2wvz|2wvz]], [[2wvx|2wvx]], [[2ww1|2ww1]], [[2ww0|2ww0]]</td></tr>
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<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Glucokinase Glucokinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.2 2.7.1.2] </span></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=2ww3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ww3 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2ww3 RCSB], [http://www.ebi.ac.uk/pdbsum/2ww3 PDBsum]</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/ww/2ww3_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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Colonic bacteria, exemplified by Bacteroides thetaiotaomicron, play a key role in maintaining human health by harnessing large families of glycoside hydrolases (GHs) to exploit dietary polysaccharides and host glycans as nutrients. Such GH family expansion is exemplified by the 23 family GH92 glycosidases encoded by the B. thetaiotaomicron genome. Here we show that these are alpha-mannosidases that act via a single displacement mechanism to utilize host N-glycans. The three-dimensional structure of two GH92 mannosidases defines a family of two-domain proteins in which the catalytic center is located at the domain interface, providing acid (glutamate) and base (aspartate) assistance to hydrolysis in a Ca(2+)-dependent manner. The three-dimensional structures of the GH92s in complex with inhibitors provide insight into the specificity, mechanism and conformational itinerary of catalysis. Ca(2+) plays a key catalytic role in helping distort the mannoside away from its ground-state (4)C(1) chair conformation toward the transition state.
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Mechanistic insights into a Ca2+-dependent family of alpha-mannosidases in a human gut symbiont.,Zhu Y, Suits MD, Thompson AJ, Chavan S, Dinev Z, Dumon C, Smith N, Moremen KW, Xiang Y, Siriwardena A, Williams SJ, Gilbert HJ, Davies GJ Nat Chem Biol. 2010 Feb;6(2):125-32. Epub 2009 Dec 27. PMID:20081828<ref>PMID:20081828</ref>
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The line below this paragraph, containing "STRUCTURE_2ww3", creates the "Structure Box" on the page.
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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or leave the SCENE parameter empty for the default display.
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-->
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{{STRUCTURE_2ww3| PDB=2ww3 | SCENE= }}
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===STRUCTURE OF THE FAMILY GH92 INVERTING MANNOSIDASE BT3990 FROM BACTEROIDES THETAIOTAOMICRON VPI-5482 IN COMPLEX WITH THIOMANNOBIOSIDE===
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
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</div>
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== References ==
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<references/>
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The line below this paragraph, {{ABSTRACT_PUBMED_20081828}}, adds the Publication Abstract to the page
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__TOC__
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(as it appears on PubMed at http://www.pubmed.gov), where 20081828 is the PubMed ID number.
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</StructureSection>
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-->
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{{ABSTRACT_PUBMED_20081828}}
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==About this Structure==
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[[2ww3]] is a 6 chain structure with sequence from [http://en.wikipedia.org/wiki/Bacteroides_thetaiotaomicron Bacteroides thetaiotaomicron]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2WW3 OCA].
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==Reference==
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<ref group="xtra">PMID:020081828</ref><references group="xtra"/>
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[[Category: Bacteroides thetaiotaomicron]]
[[Category: Bacteroides thetaiotaomicron]]
[[Category: Davies, G J.]]
[[Category: Davies, G J.]]

Revision as of 07:53, 14 May 2014

STRUCTURE OF THE FAMILY GH92 INVERTING MANNOSIDASE BT3990 FROM BACTEROIDES THETAIOTAOMICRON VPI-5482 IN COMPLEX WITH THIOMANNOBIOSIDE

2ww3, resolution 2.10Å

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