1qwz: Difference between revisions

No edit summary
No edit summary
 
(11 intermediate revisions by the same user not shown)
Line 1: Line 1:
{{Seed}}
[[Image:1qwz.png|left|200px]]


<!--
==Crystal structure of Sortase B from S. aureus complexed with MTSET==
The line below this paragraph, containing "STRUCTURE_1qwz", creates the "Structure Box" on the page.
<StructureSection load='1qwz' size='340' side='right'caption='[[1qwz]], [[Resolution|resolution]] 1.75&Aring;' scene=''>
You may change the PDB parameter (which sets the PDB file loaded into the applet)  
== Structural highlights ==
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
<table><tr><td colspan='2'>[[1qwz]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Staphylococcus_aureus Staphylococcus aureus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QWZ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1QWZ FirstGlance]. <br>
or leave the SCENE parameter empty for the default display.
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.75&#8491;</td></tr>
-->
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ETM:2-(TRIMETHYLAMMONIUM)ETHYL+THIOL'>ETM</scene>, <scene name='pdbligand=NI:NICKEL+(II)+ION'>NI</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
{{STRUCTURE_1qwz|  PDB=1qwz  |  SCENE= }}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1qwz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1qwz OCA], [https://pdbe.org/1qwz PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1qwz RCSB], [https://www.ebi.ac.uk/pdbsum/1qwz PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1qwz ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/SRTB_STAA8 SRTB_STAA8] Transpeptidase that anchors surface proteins to the cell wall (Probable) (PubMed:11830639, PubMed:15718231, PubMed:24519933). Recognizes and modifies its substrate by proteolytic cleavage of a C-terminal sorting signal. Following cleavage, a covalent intermediate is formed via a thioester bond between the sortase and its substrate, which is then transferred and covalently attached to the cell wall (Probable) (PubMed:24519933). This sortase recognizes an Asn-Pro-Gln-Thr-Asn (NPQTN) motif in IsdC, which is cleaved by the sortase between the threonine and aspargine residues; may only have 1 substrate in this bacterium (Probable). May be dedicated to the process of iron acquisition during bacterial infection (Probable).<ref>PMID:11830639</ref> <ref>PMID:15718231</ref> <ref>PMID:24519933</ref> <ref>PMID:11830639</ref> <ref>PMID:15718231</ref> <ref>PMID:29690584</ref>
== 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/qw/1qwz_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=1qwz ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Many surface proteins of Gram-positive bacteria, which play important roles during the pathogenesis of human infections, are anchored to the cell wall envelope by a mechanism requiring sortases. Sortase B, a cysteine transpeptidase from Staphylococcus aureus, cleaves the C-terminal sorting signal of IsdC at the NPQTN motif and tethers the polypeptide to the pentaglycine cell wall cross-bridge. During catalysis, the active site cysteine of sortase and the cleaved substrate form an acyl intermediate, which is then resolved by the amino group of pentaglycine cross-bridges. We report here the crystal structures of SrtBDeltaN30 in complex with two active site inhibitors, MTSET and E64, and with the cell wall substrate analog tripleglycine. These structures reveal, for the first time, the active site disposition and the unique Cys-Arg catalytic machinery of the cysteine transpeptidase, and they also provide useful information for the future design of anti-infective agents against sortases.


===Crystal structure of Sortase B from S. aureus complexed with MTSET===
The structure of sortase B, a cysteine transpeptidase that tethers surface protein to the Staphylococcus aureus cell wall.,Zong Y, Mazmanian SK, Schneewind O, Narayana SV Structure. 2004 Jan;12(1):105-12. PMID:14725770<ref>PMID:14725770</ref>


 
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
<!--
</div>
The line below this paragraph, {{ABSTRACT_PUBMED_14725770}}, adds the Publication Abstract to the page
<div class="pdbe-citations 1qwz" style="background-color:#fffaf0;"></div>
(as it appears on PubMed at http://www.pubmed.gov), where 14725770 is the PubMed ID number.
== References ==
-->
<references/>
{{ABSTRACT_PUBMED_14725770}}
__TOC__
 
</StructureSection>
==About this Structure==
[[Category: Large Structures]]
1QWZ is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Staphylococcus_aureus Staphylococcus aureus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QWZ OCA].
 
==Reference==
The structure of sortase B, a cysteine transpeptidase that tethers surface protein to the Staphylococcus aureus cell wall., Zong Y, Mazmanian SK, Schneewind O, Narayana SV, Structure. 2004 Jan;12(1):105-12. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/14725770 14725770]
[[Category: Single protein]]
[[Category: Staphylococcus aureus]]
[[Category: Staphylococcus aureus]]
[[Category: Mazmanian, S K.]]
[[Category: Mazmanian SK]]
[[Category: Narayana, S V.]]
[[Category: Narayana SV]]
[[Category: Schneewind, O.]]
[[Category: Schneewind O]]
[[Category: Zong, Y.]]
[[Category: Zong Y]]
[[Category: Beta barrel]]
[[Category: Transpeptidase]]
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 10:41:28 2008''

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

OCA