View source for 5fsd


==1.75 A resolution 2,5-dihydroxybenzensulfonate inhibited Sporosarcina pasteurii urease==
<StructureSection load='5fsd' size='340' side='right' caption='[[5fsd]], [[Resolution|resolution]] 1.75&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5fsd]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Sporosarcina_pasteurii Sporosarcina pasteurii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5FSD OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5FSD FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=DBX:2,5-DIHYDROXYBENZENESULFONIC+ACID'>DBX</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=NI:NICKEL+(II)+ION'>NI</scene>, <scene name='pdbligand=OH:HYDROXIDE+ION'>OH</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=CXM:N-CARBOXYMETHIONINE'>CXM</scene>, <scene name='pdbligand=KCX:LYSINE+NZ-CARBOXYLIC+ACID'>KCX</scene></td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5fse|5fse]]</td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Urease Urease], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.5.1.5 3.5.1.5] </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=5fsd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5fsd OCA], [http://pdbe.org/5fsd PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5fsd RCSB], [http://www.ebi.ac.uk/pdbsum/5fsd PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5fsd ProSAT]</span></td></tr>
</table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The high activity of urease, a Ni(ii) enzyme, has several adverse effects on human health and agriculture, and its modulation needs the use of inhibitors. 1,4-Benzoquinone (BQ) irreversibly inactivates Sporosarcina pasteurii urease (SPU), with first order kinetics for both the inhibitor and the enzyme. This reaction is stoichiometrically quenched in the presence of sulphite. The 2.07 A crystal structure of SPU bound to BQ shows the presence of a 1,4-hydroquinone moiety covalently bound to the thiol group of alphaCys322, a key residue found on the mobile flap regulating the substrate access to the active site. The 1.75 A crystal structure obtained when sulphite is added to a solution of SPU previously incubated with BQ shows the presence of a 2,5-dihydroxy-benzenesulphonate moiety bound to the alphaCys322 thiol group. These data reveal how the active site cysteine reacts with a prototypical BQ moiety, found in a large number of natural substances potentially suitable to control the urease activity.

Inactivation of urease by 1,4-benzoquinone: chemistry at the protein surface.,Mazzei L, Cianci M, Musiani F, Ciurli S Dalton Trans. 2016 Apr 7;45(13):5455-9. doi: 10.1039/c6dt00652c. Epub 2016 Mar, 10. PMID:26961812<ref>PMID:26961812</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 5fsd" style="background-color:#fffaf0;"></div>

==See Also==
*[[Urease|Urease]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Sporosarcina pasteurii]]
[[Category: Urease]]
[[Category: Cianci, M]]
[[Category: Ciurli, S]]
[[Category: Mazzei, L]]
[[Category: Musiani, F]]
[[Category: 5-dihydroxybenzensulfonate]]
[[Category: Hydrolase]]
[[Category: Metalloenzyme]]
[[Category: Nickel]]