This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.
Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.
1w9b
From Proteopedia
(Difference between revisions)
| (13 intermediate revisions not shown.) | |||
| Line 1: | Line 1: | ||
| - | [[Image:1w9b.gif|left|200px]] | ||
| - | + | ==S. alba myrosinase in complex with carba-glucotropaeolin== | |
| - | + | <StructureSection load='1w9b' size='340' side='right'caption='[[1w9b]], [[Resolution|resolution]] 1.70Å' scene=''> | |
| - | + | == Structural highlights == | |
| - | + | <table><tr><td colspan='2'>[[1w9b]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Sinapis_alba Sinapis alba]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1W9B OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1W9B FirstGlance]. <br> | |
| - | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.7Å</td></tr> | |
| - | - | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BMA:BETA-D-MANNOSE'>BMA</scene>, <scene name='pdbligand=CGT:CARBA-GLUCOTROPAEOLIN'>CGT</scene>, <scene name='pdbligand=FUC:ALPHA-L-FUCOSE'>FUC</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=MAN:ALPHA-D-MANNOSE'>MAN</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=XYP:BETA-D-XYLOPYRANOSE'>XYP</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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=1w9b FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1w9b OCA], [https://pdbe.org/1w9b PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1w9b RCSB], [https://www.ebi.ac.uk/pdbsum/1w9b PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1w9b ProSAT]</span></td></tr> | |
| - | + | </table> | |
| - | ''' | + | == Function == |
| - | + | [https://www.uniprot.org/uniprot/MYRA_SINAL MYRA_SINAL] Degradation of glucosinolates (glucose residue linked by a thioglucoside bound to an amino acid derivative) to glucose, sulfate and any of the products: thiocyanates, isothiocyanates, nitriles, epithionitriles or oxazolidine-2-thiones. | |
| - | + | == Evolutionary Conservation == | |
| - | == | + | [[Image:Consurf_key_small.gif|200px|right]] |
| + | Check<jmol> | ||
| + | <jmolCheckbox> | ||
| + | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/w9/1w9b_consurf.spt"</scriptWhenChecked> | ||
| + | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
| + | <text>to colour the structure by Evolutionary Conservation</text> | ||
| + | </jmolCheckbox> | ||
| + | </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=1w9b ConSurf]. | ||
| + | <div style="clear:both"></div> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
Myrosinase, a thioglucoside glucohydrolase, is the only enzyme able to hydrolyse glucosinolates, a unique family of molecules bearing an anomeric O-sulfated thiohydroximate function. Non-hydrolysable myrosinase inhibitors have been devised and studied for their biological interaction. Diverse modifications of the O-sulfate moiety did not result in a significant inhibitory effect, whereas replacing the D-glucopyrano residue by its carba-analogue allowed inhibition to take place. X-Ray experiments carried out after soaking allowed for the first time inclusion of a non-hydrolysable inhibitor inside the enzymatic pocket. Structural tuning of the aglycon part in its pocket is being used as a guide for the development of simplified and more potent inhibitors. | Myrosinase, a thioglucoside glucohydrolase, is the only enzyme able to hydrolyse glucosinolates, a unique family of molecules bearing an anomeric O-sulfated thiohydroximate function. Non-hydrolysable myrosinase inhibitors have been devised and studied for their biological interaction. Diverse modifications of the O-sulfate moiety did not result in a significant inhibitory effect, whereas replacing the D-glucopyrano residue by its carba-analogue allowed inhibition to take place. X-Ray experiments carried out after soaking allowed for the first time inclusion of a non-hydrolysable inhibitor inside the enzymatic pocket. Structural tuning of the aglycon part in its pocket is being used as a guide for the development of simplified and more potent inhibitors. | ||
| - | + | The glucosinolate-myrosinase system. New insights into enzyme-substrate interactions by use of simplified inhibitors.,Bourderioux A, Lefoix M, Gueyrard D, Tatibouet A, Cottaz S, Arzt S, Burmeister WP, Rollin P Org Biomol Chem. 2005 May 21;3(10):1872-9. Epub 2005 Apr 14. PMID:15889170<ref>PMID:15889170</ref> | |
| - | + | ||
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| + | <div class="pdbe-citations 1w9b" style="background-color:#fffaf0;"></div> | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Large Structures]] | ||
[[Category: Sinapis alba]] | [[Category: Sinapis alba]] | ||
| - | + | [[Category: Arzt S]] | |
| - | + | [[Category: Bourderioux A]] | |
| - | [[Category: Arzt | + | [[Category: Burmeister WP]] |
| - | [[Category: Bourderioux | + | [[Category: Cottaz S]] |
| - | [[Category: Burmeister | + | [[Category: Gueyrard D]] |
| - | [[Category: Cottaz | + | [[Category: Lefoix M]] |
| - | [[Category: Gueyrard | + | [[Category: Rollin P]] |
| - | [[Category: Lefoix | + | [[Category: Tatibouet A]] |
| - | [[Category: Rollin | + | |
| - | [[Category: Tatibouet | + | |
| - | + | ||
| - | + | ||
| - | + | ||
| - | + | ||
| - | + | ||
| - | + | ||
| - | + | ||
| - | + | ||
| - | + | ||
Current revision
S. alba myrosinase in complex with carba-glucotropaeolin
| |||||||||||
Categories: Large Structures | Sinapis alba | Arzt S | Bourderioux A | Burmeister WP | Cottaz S | Gueyrard D | Lefoix M | Rollin P | Tatibouet A

