1w2t

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[[Image:1w2t.png|left|200px]]
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==BETA-FRUCTOSIDASE FROM THERMOTOGA MARITIMA IN COMPLEX WITH RAFFINOSE==
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<StructureSection load='1w2t' size='340' side='right' caption='[[1w2t]], [[Resolution|resolution]] 1.87&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1w2t]] is a 6 chain structure with sequence from [http://en.wikipedia.org/wiki/Thermotoga_maritima Thermotoga maritima]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1W2T OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1W2T FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CIT:CITRIC+ACID'>CIT</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=GLA:ALPHA+D-GALACTOSE'>GLA</scene>, <scene name='pdbligand=SUC:SUCROSE'>SUC</scene><br>
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<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1uyp|1uyp]]</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/Beta-fructofuranosidase Beta-fructofuranosidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.26 3.2.1.26] </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=1w2t FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1w2t OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1w2t RCSB], [http://www.ebi.ac.uk/pdbsum/1w2t 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/w2/1w2t_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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Thermotoga maritima invertase (beta-fructosidase), a member of the glycoside hydrolase family GH-32, readily releases beta-D-fructose from sucrose, raffinose and fructan polymers such as inulin. These carbohydrates represent major carbon and energy sources for prokaryotes and eukaryotes. The invertase cleaves beta-fructopyranosidic linkages by a double-displacement mechanism, which involves a nucleophilic aspartate and a catalytic glutamic acid acting as a general acid/base. The three-dimensional structure of invertase shows a bimodular enzyme with a five bladed beta-propeller catalytic domain linked to a beta-sandwich of unknown function. In the present study we report the crystal structure of the inactivated invertase in interaction with the natural substrate molecule alpha-D-galactopyranosyl-(1,6)-alpha-D-glucopyranosyl-beta-D-fructofuranos ide (raffinose) at 1.87 A (1 A=0.1 nm) resolution. The structural analysis of the complex reveals the presence of three binding-subsites, which explains why T. maritima invertase exhibits a higher affinity for raffinose than sucrose, but a lower catalytic efficiency with raffinose as substrate than with sucrose.
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{{STRUCTURE_1w2t| PDB=1w2t | SCENE= }}
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Crystal structure of inactivated Thermotoga maritima invertase in complex with the trisaccharide substrate raffinose.,Alberto F, Jordi E, Henrissat B, Czjzek M Biochem J. 2006 May 1;395(3):457-62. PMID:16411890<ref>PMID:16411890</ref>
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===BETA-FRUCTOSIDASE FROM THERMOTOGA MARITIMA IN COMPLEX WITH RAFFINOSE===
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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_16411890}}
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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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[[1w2t]] is a 6 chain structure with sequence from [http://en.wikipedia.org/wiki/Thermotoga_maritima Thermotoga maritima]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1W2T OCA].
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</StructureSection>
[[Category: Beta-fructofuranosidase]]
[[Category: Beta-fructofuranosidase]]
[[Category: Thermotoga maritima]]
[[Category: Thermotoga maritima]]

Revision as of 20:14, 29 September 2014

BETA-FRUCTOSIDASE FROM THERMOTOGA MARITIMA IN COMPLEX WITH RAFFINOSE

1w2t, resolution 1.87Å

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