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New page: left|200px<br /><applet load="2oqz" size="350" color="white" frame="true" align="right" spinBox="true" caption="2oqz, resolution 1.60Å" /> '''The crystal structur... |
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== | ==The crystal structure of sortase B from B.anthracis in complex with AAEK2== | ||
Sortases anchor surface proteins to the cell wall of Gram-positive | <StructureSection load='2oqz' size='340' side='right'caption='[[2oqz]], [[Resolution|resolution]] 1.60Å' scene=''> | ||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[2oqz]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Bacillus_anthracis_(strain_ames) Bacillus anthracis (strain ames)]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2OQZ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2OQZ FirstGlance]. <br> | |||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACY:ACETIC+ACID'>ACY</scene></td></tr> | |||
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=CS4:S-[3-(3,4-DICHLOROPHENYL)-3-OXOPROPYL]-L-CYSTEINE'>CS4</scene>, <scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr> | |||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">BA_4783, BAS4438, GBAA4783 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=198094 Bacillus anthracis (strain Ames)])</td></tr> | |||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Cruzipain Cruzipain], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.22.51 3.4.22.51] </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=2oqz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2oqz OCA], [https://pdbe.org/2oqz PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2oqz RCSB], [https://www.ebi.ac.uk/pdbsum/2oqz PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2oqz ProSAT]</span></td></tr> | |||
</table> | |||
== 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/oq/2oqz_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=2oqz ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Sortases anchor surface proteins to the cell wall of Gram-positive pathogens through recognition of specific motif sequences. Loss of sortase leads to large reductions in virulence, which identifies sortase as a target for the development of antibacterials. By screening 135,625 small molecules for inhibition, we report here that aryl (beta-amino)ethyl ketones inhibit sortase enzymes from staphylococci and bacilli. Inhibition of sortases occurs through an irreversible, covalent modification of their active site cysteine. Sortases specifically activate this class of molecules via beta-elimination, generating a reactive olefin intermediate that covalently modifies the cysteine thiol. Analysis of the three-dimensional structure of Bacillus anthracis sortase B with and without inhibitor provides insights into the mechanism of inhibition and reveals binding pockets that can be exploited for drug discovery. | |||
Activation of inhibitors by sortase triggers irreversible modification of the active site.,Maresso AW, Wu R, Kern JW, Zhang R, Janik D, Missiakas DM, Duban ME, Joachimiak A, Schneewind O J Biol Chem. 2007 Aug 10;282(32):23129-39. Epub 2007 Jun 1. PMID:17545669<ref>PMID:17545669</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 2oqz" style="background-color:#fffaf0;"></div> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Cruzipain]] | [[Category: Cruzipain]] | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: Joachimiak, A]] | |||
[[Category: Joachimiak, A | [[Category: Maresso, A W]] | ||
[[Category: Maresso, A | [[Category: Schneewind, O]] | ||
[[Category: Schneewind, O | [[Category: Wu, R]] | ||
[[Category: Wu, R | [[Category: Zhang, R]] | ||
[[Category: Zhang, R | [[Category: B anthracis]] | ||
[[Category: | [[Category: Hydrolase]] | ||
[[Category: | [[Category: Inhibitor]] | ||
[[Category: | [[Category: Sortase b protein]] | ||
[[Category: | |||
Latest revision as of 16:03, 9 June 2021
The crystal structure of sortase B from B.anthracis in complex with AAEK2The crystal structure of sortase B from B.anthracis in complex with AAEK2
Structural highlights
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 PubMedSortases anchor surface proteins to the cell wall of Gram-positive pathogens through recognition of specific motif sequences. Loss of sortase leads to large reductions in virulence, which identifies sortase as a target for the development of antibacterials. By screening 135,625 small molecules for inhibition, we report here that aryl (beta-amino)ethyl ketones inhibit sortase enzymes from staphylococci and bacilli. Inhibition of sortases occurs through an irreversible, covalent modification of their active site cysteine. Sortases specifically activate this class of molecules via beta-elimination, generating a reactive olefin intermediate that covalently modifies the cysteine thiol. Analysis of the three-dimensional structure of Bacillus anthracis sortase B with and without inhibitor provides insights into the mechanism of inhibition and reveals binding pockets that can be exploited for drug discovery. Activation of inhibitors by sortase triggers irreversible modification of the active site.,Maresso AW, Wu R, Kern JW, Zhang R, Janik D, Missiakas DM, Duban ME, Joachimiak A, Schneewind O J Biol Chem. 2007 Aug 10;282(32):23129-39. Epub 2007 Jun 1. PMID:17545669[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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