View source for 6exl


==The Transcriptional Regulator PrfA from Listeria Monocytogenes in complex with a ring-fused 2-pyridone (MK206) - folded HTH motif==
<StructureSection load='6exl' size='340' side='right'caption='[[6exl]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6exl]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Listeria_monocytogenes Listeria monocytogenes]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6EXL OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6EXL 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]] 1.9&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=C2Q:[(3~{R})-3-carboxy-7-[(4-methylnaphthalen-1-yl)methyl]-5-oxidanylidene-2,3-dihydro-[1,3]thiazolo[3,2-a]pyridin-8-yl]-dimethyl-azanium'>C2Q</scene>, <scene name='pdbligand=CME:S,S-(2-HYDROXYETHYL)THIOCYSTEINE'>CME</scene>, <scene name='pdbligand=IPA:ISOPROPYL+ALCOHOL'>IPA</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</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=6exl FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6exl OCA], [https://pdbe.org/6exl PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6exl RCSB], [https://www.ebi.ac.uk/pdbsum/6exl PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6exl ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/PRFA_LISMO PRFA_LISMO] Positively regulates expression of listeriolysin, of 1-phosphadidylinositol phosphodiesterase (PI-PLC) and other virulence factors.
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Listeria monocytogenes is a bacterial pathogen that controls much of its virulence through the transcriptional regulator PrfA. In this study, we describe structure-guided design and synthesis of a set of PrfA inhibitors based on ring-fused 2-pyridone heterocycles. Our most effective compound decreased virulence factor expression, reduced bacterial uptake into eukaryotic cells, and improved survival of chicken embryos infected with L. monocytogenes compared to previously identified compounds. Crystal structures identified an intraprotein "tunnel" as the main inhibitor binding site (AI), where the compounds participate in an extensive hydrophobic network that restricts the protein's ability to form functional DNA-binding helix-turn-helix (HTH) motifs. Our studies also revealed a hitherto unsuspected structural plasticity of the HTH motif. In conclusion, we have designed 2-pyridone analogues that function as site-AI selective PrfA inhibitors with potent antivirulence properties.

Structure-Based Design of Inhibitors Targeting PrfA, the Master Virulence Regulator of Listeria monocytogenes.,Kulen M, Lindgren M, Hansen S, Cairns AG, Grundstrom C, Begum A, van der Lingen I, Brannstrom K, Hall M, Sauer UH, Johansson J, Sauer-Eriksson AE, Almqvist F J Med Chem. 2018 Apr 27. doi: 10.1021/acs.jmedchem.8b00289. PMID:29667825<ref>PMID:29667825</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 6exl" style="background-color:#fffaf0;"></div>

==See Also==
*[[Transcriptional activator 3D structures|Transcriptional activator 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Listeria monocytogenes]]
[[Category: Almqvist F]]
[[Category: Begum A]]
[[Category: Grundstrom C]]
[[Category: Hall M]]
[[Category: Johansson J]]
[[Category: Kulen M]]
[[Category: Lindgren M]]
[[Category: Sauer UH]]
[[Category: Sauer-Eriksson AE]]