1w9b: Difference between revisions
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== | ==S. alba myrosinase in complex with carba-glucotropaeolin== | ||
Myrosinase, a thioglucoside glucohydrolase, is the only enzyme able to | <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/initialview03.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. | |||
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 | |||
Latest revision as of 07:59, 17 October 2024
S. alba myrosinase in complex with carba-glucotropaeolinS. alba myrosinase in complex with carba-glucotropaeolin
Structural highlights
FunctionMYRA_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 Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedMyrosinase, 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[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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