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2x2t

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[[Image:2x2t.png|left|200px]]
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==CRYSTAL STRUCTURE OF SCLEROTINIA SCLEROTIORUM AGGLUTININ SSA IN COMPLEX WITH GAL-BETA1,3-GALNAC==
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<StructureSection load='2x2t' size='340' side='right' caption='[[2x2t]], [[Resolution|resolution]] 1.97&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2x2t]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Sclerotinia_sclerotiorum Sclerotinia sclerotiorum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2X2T OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2X2T 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=PG4:TETRAETHYLENE+GLYCOL'>PG4</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=GAL:BETA-D-GALACTOSE'>GAL</scene>, <scene name='pdbligand=NGA:N-ACETYL-D-GALACTOSAMINE'>NGA</scene></td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2x2s|2x2s]]</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=2x2t FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2x2t OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2x2t RCSB], [http://www.ebi.ac.uk/pdbsum/2x2t 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/x2/2x2t_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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A lectin from the phytopathogenic ascomycete Sclerotinia sclerotiorum that shares only weak sequence similarity with characterized fungal lectins has recently been identified. S. sclerotiorum agglutinin (SSA) is a homodimeric protein consisting of two identical subunits of approximately 17 kDa and displays specificity primarily towards Gal/GalNAc. Glycan array screening indicates that SSA readily interacts with Gal/GalNAc-bearing glycan chains. The crystal structures of SSA in the ligand-free form and in complex with the Gal-beta1,3-GalNAc (T-antigen) disaccharide have been determined at 1.6 and 1.97 A resolution, respectively. SSA adopts a beta-trefoil domain as previously identified for other carbohydrate-binding proteins of the ricin B-like lectin superfamily and accommodates terminal non-reducing galactosyl and N-acetylgalactosaminyl glycans. Unlike other structurally related lectins, SSA contains a single carbohydrate-binding site at site alpha. SSA reveals a novel dimeric assembly markedly dissimilar to those described earlier for ricin-type lectins. The present structure exemplifies the adaptability of the beta-trefoil domain in the evolution of fungal lectins.
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{{STRUCTURE_2x2t| PDB=2x2t | SCENE= }}
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Crystal structure of the GalNAc/Gal-specific agglutinin from the phytopathogenic ascomycete Sclerotinia sclerotiorum reveals novel adaptation of a beta-trefoil domain.,Sulzenbacher G, Roig-Zamboni V, Peumans WJ, Rouge P, Van Damme EJ, Bourne Y J Mol Biol. 2010 Jul 23;400(4):715-23. Epub 2010 May 24. PMID:20566411<ref>PMID:20566411</ref>
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===CRYSTAL STRUCTURE OF SCLEROTINIA SCLEROTIORUM AGGLUTININ SSA IN COMPLEX WITH GAL-BETA1,3-GALNAC===
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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_20566411}}
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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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[[2x2t]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Sclerotinia_sclerotiorum Sclerotinia sclerotiorum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2X2T OCA].
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</StructureSection>
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==Reference==
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<ref group="xtra">PMID:020566411</ref><references group="xtra"/>
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[[Category: Sclerotinia sclerotiorum]]
[[Category: Sclerotinia sclerotiorum]]
[[Category: Bourne, Y.]]
[[Category: Bourne, Y.]]

Revision as of 13:26, 22 October 2014

CRYSTAL STRUCTURE OF SCLEROTINIA SCLEROTIORUM AGGLUTININ SSA IN COMPLEX WITH GAL-BETA1,3-GALNAC

2x2t, resolution 1.97Å

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