View source for 8hjb


==Crystal structure of Pseudomonas aeruginosa PvrA with coenzyme A==
<StructureSection load='8hjb' size='340' side='right'caption='[[8hjb]], [[Resolution|resolution]] 2.65&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[8hjb]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Pseudomonas_aeruginosa_PA14 Pseudomonas aeruginosa PA14]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8HJB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8HJB 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]] 2.65&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=COA:COENZYME+A'>COA</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=8hjb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8hjb OCA], [https://pdbe.org/8hjb PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8hjb RCSB], [https://www.ebi.ac.uk/pdbsum/8hjb PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8hjb ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/A0A0H2ZBS8_PSEAB A0A0H2ZBS8_PSEAB] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Pseudomonas aeruginosa is capable of causing acute and chronic infections in various host tissues, which depends on its abilities to effectively utilize host-derived nutrients and produce protein virulence factors and toxic compounds. However, the regulatory mechanisms that direct metabolic intermediates towards production of toxic compounds are poorly understood. We previously identified a regulatory protein PvrA that controls genes involved in fatty acid catabolism by binding to palmitoyl-coenzyme A (CoA). In this study, transcriptomic analyses revealed that PvrA activates the Pseudomonas quinolone signal (PQS) synthesis genes, while suppressing genes for production of polyhydroxyalkanoates (PHAs). When palmitic acid was the sole carbon source, mutation of pvrA reduced production of pyocyanin and rhamnolipids due to defective PQS synthesis, but increased PHA production. We further solved the co-crystal structure of PvrA with palmitoyl-CoA and identified palmitoyl-CoA-binding residues. By using pvrA mutants, we verified the roles of the key palmitoyl-CoA-binding residues in gene regulation in response to palmitic acid. Since the PQS signal molecules, rhamnolipids and PHA synthesis pathways are interconnected by common metabolic intermediates, our results revealed a regulatory mechanism that directs carbon flux from carbon/energy storage to virulence factor production, which might be crucial for the pathogenesis.

Regulatory and structural mechanisms of PvrA-mediated regulation of the PQS quorum-sensing system and PHA biosynthesis in Pseudomonas aeruginosa.,Pan X, Liang H, Zhao X, Zhang Q, Chen L, Yue Z, Yin L, Jin Y, Bai F, Cheng Z, Bartlam M, Wu W Nucleic Acids Res. 2023 Apr 11;51(6):2691-2708. doi: 10.1093/nar/gkad059. PMID:36744476<ref>PMID:36744476</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 8hjb" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Pseudomonas aeruginosa PA14]]
[[Category: Bartlam M]]
[[Category: Liang H]]