2x2s
From Proteopedia
(Difference between revisions)
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== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2x2s]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Sclerotinia_sclerotiorum Sclerotinia sclerotiorum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2X2S OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2X2S FirstGlance]. <br> | <table><tr><td colspan='2'>[[2x2s]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Sclerotinia_sclerotiorum Sclerotinia sclerotiorum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2X2S OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2X2S FirstGlance]. <br> | ||
| - | </td></tr><tr id=' | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.6Å</td></tr> |
| - | <tr id=' | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene></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=2x2s FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2x2s OCA], [https://pdbe.org/2x2s PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2x2s RCSB], [https://www.ebi.ac.uk/pdbsum/2x2s PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2x2s ProSAT]</span></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=2x2s FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2x2s OCA], [https://pdbe.org/2x2s PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2x2s RCSB], [https://www.ebi.ac.uk/pdbsum/2x2s PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2x2s ProSAT]</span></td></tr> | ||
</table> | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/AGGL_SCLSC AGGL_SCLSC] Lectin that primarily recognizes glycans with a non-reducing terminal N-acetylgalactosamine (GalNAc), with a preference for the alpha- over the beta-anomer. Can also bind non-reducing terminal galactose (Gal) residues but with a lower affinity. Strongly interacts with glycolipid type glycans with terminal non-reducing Gal or GalNAc but fails to bind sialylated or fucosylated forms of the same glycans. Strongly interacts with galactosylated N-glycans, displaying highest affinity for alpha-1-3 branched mono-antennary N-glycans but also binding to multi-antennary glycans.<ref>PMID:12901882</ref> <ref>PMID:17294128</ref> <ref>PMID:20566411</ref> | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
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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/main_output.php?pdb_ID=2x2s ConSurf]. | </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/main_output.php?pdb_ID=2x2s ConSurf]. | ||
<div style="clear:both"></div> | <div style="clear:both"></div> | ||
| - | <div style="background-color:#fffaf0;"> | ||
| - | == Publication Abstract from PubMed == | ||
| - | 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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| - | 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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| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| - | </div> | ||
| - | <div class="pdbe-citations 2x2s" style="background-color:#fffaf0;"></div> | ||
==See Also== | ==See Also== | ||
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[[Category: Large Structures]] | [[Category: Large Structures]] | ||
[[Category: Sclerotinia sclerotiorum]] | [[Category: Sclerotinia sclerotiorum]] | ||
| - | [[Category: Bourne | + | [[Category: Bourne Y]] |
| - | + | [[Category: Peumans WJ]] | |
| - | [[Category: Peumans | + | [[Category: Roig-Zamboni V]] |
| - | [[Category: Roig-Zamboni | + | [[Category: Rouge P]] |
| - | [[Category: Rouge | + | [[Category: Sulzenbacher G]] |
| - | [[Category: Sulzenbacher | + | [[Category: Van Damme EJM]] |
| - | [[Category: | + | |
| - | + | ||
| - | + | ||
Current revision
Crystal structure of Sclerotinia sclerotiorum agglutinin SSA
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