5o7u
From Proteopedia
(Difference between revisions)
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<StructureSection load='5o7u' size='340' side='right' caption='[[5o7u]], [[Resolution|resolution]] 1.15Å' scene=''> | <StructureSection load='5o7u' size='340' side='right' caption='[[5o7u]], [[Resolution|resolution]] 1.15Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[5o7u]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5O7U OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5O7U FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[5o7u]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_solanacearum"_smith_1896 "bacillus solanacearum" smith 1896]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5O7U OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5O7U FirstGlance]. <br> |
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=FUC:ALPHA-L-FUCOSE'>FUC</scene>, <scene name='pdbligand=GAL:BETA-D-GALACTOSE'>GAL</scene>, <scene name='pdbligand=GLA:ALPHA+D-GALACTOSE'>GLA</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=FUC:ALPHA-L-FUCOSE'>FUC</scene>, <scene name='pdbligand=GAL:BETA-D-GALACTOSE'>GAL</scene>, <scene name='pdbligand=GLA:ALPHA+D-GALACTOSE'>GLA</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></td></tr> | ||
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=F7W:'>F7W</scene></td></tr> | <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=F7W:'>F7W</scene></td></tr> | ||
| + | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CMR15_11270 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=305 "Bacillus solanacearum" Smith 1896])</td></tr> | ||
<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=5o7u FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5o7u OCA], [http://pdbe.org/5o7u PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5o7u RCSB], [http://www.ebi.ac.uk/pdbsum/5o7u PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5o7u ProSAT]</span></td></tr> | <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=5o7u FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5o7u OCA], [http://pdbe.org/5o7u PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5o7u RCSB], [http://www.ebi.ac.uk/pdbsum/5o7u PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5o7u ProSAT]</span></td></tr> | ||
</table> | </table> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Protein-carbohydrate interactions play crucial roles in biology. Understanding and modifying these interactions is of major interest for fighting many diseases. We took a synthetic biology approach and incorporated noncanonical amino acids into a bacterial lectin to modulate its interactions with carbohydrates. We focused on tryptophan, which is prevalent in carbohydrate binding sites. The exchange of the tryptophan residues with analogs fluorinated at different positions resulted in three distinctly fluorinated variants of the lectin from Ralstonia solanacearum. We observed differences in stability and affinity toward fucosylated glycans and rationalized them by X-ray and modeling studies. While fluorination decreased the aromaticity of the indole ring and, therefore, the strength of carbohydrate-aromatic interactions, additional weak hydrogen bonds were formed between fluorine and the ligand hydroxyl groups. Our approach opens new possibilities to engineer carbohydrate receptors. | ||
| + | |||
| + | Effect of Noncanonical Amino Acids on Protein-Carbohydrate Interactions: Structure, Dynamics, and Carbohydrate Affinity of a Lectin Engineered with Fluorinated Tryptophan Analogs.,Tobola F, Lelimousin M, Varrot A, Gillon E, Darnhofer B, Blixt O, Birner-Gruenberger R, Imberty A, Wiltschi B ACS Chem Biol. 2018 Jun 12. doi: 10.1021/acschembio.8b00377. PMID:29812892<ref>PMID:29812892</ref> | ||
| + | |||
| + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| + | </div> | ||
| + | <div class="pdbe-citations 5o7u" style="background-color:#fffaf0;"></div> | ||
| + | == References == | ||
| + | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
| + | [[Category: Bacillus solanacearum smith 1896]] | ||
[[Category: Varrot, A]] | [[Category: Varrot, A]] | ||
[[Category: Carbohydrate]] | [[Category: Carbohydrate]] | ||
Revision as of 08:01, 14 June 2018
Crystal structure of the 7-Fluorotryptophan RSL lectin in complex with Lewis x tetrasaccharide
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