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| | <StructureSection load='6j7e' size='340' side='right'caption='[[6j7e]], [[Resolution|resolution]] 2.40Å' scene=''> | | <StructureSection load='6j7e' size='340' side='right'caption='[[6j7e]], [[Resolution|resolution]] 2.40Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[6j7e]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6J7E OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6J7E FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[6j7e]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Pseudomonas_aeruginosa Pseudomonas aeruginosa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6J7E OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6J7E FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=AGS:PHOSPHOTHIOPHOSPHORIC+ACID-ADENYLATE+ESTER'>AGS</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.4Å</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=6j7e FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6j7e OCA], [http://pdbe.org/6j7e PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6j7e RCSB], [http://www.ebi.ac.uk/pdbsum/6j7e PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6j7e ProSAT]</span></td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=AGS:PHOSPHOTHIOPHOSPHORIC+ACID-ADENYLATE+ESTER'>AGS</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</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=6j7e FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6j7e OCA], [https://pdbe.org/6j7e PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6j7e RCSB], [https://www.ebi.ac.uk/pdbsum/6j7e PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6j7e ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | + | == Function == |
| | + | [https://www.uniprot.org/uniprot/FLEQ_PSEAE FLEQ_PSEAE] AAA+ ATPase enhancer-binding protein that acts as a transcription regulator and plays a role in the modulation of mucin adhesion and flagellar gene expression (PubMed:9287015, PubMed:11673434, PubMed:26362077). In addition to flagella genes, regulates also expression of biofilm-related genes (PubMed:22581773). Functions as a transcriptional repressor in the absence of c-di-GMP and as an activator when c-di-GMP is present (PubMed:22581773).<ref>PMID:11673434</ref> <ref>PMID:22581773</ref> <ref>PMID:26362077</ref> <ref>PMID:9287015</ref> |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | </StructureSection> | | </StructureSection> |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Banerjee, P]] | + | [[Category: Pseudomonas aeruginosa]] |
| | + | [[Category: Banerjee P]] |
| | [[Category: Chanchal]] | | [[Category: Chanchal]] |
| - | [[Category: Jain, D]] | + | [[Category: Jain D]] |
| - | [[Category: Aaa+]]
| + | |
| - | [[Category: Fleq]]
| + | |
| - | [[Category: Ntrc]]
| + | |
| - | [[Category: Pseudomona]]
| + | |
| - | [[Category: Transcription]]
| + | |
| Structural highlights
Function
FLEQ_PSEAE AAA+ ATPase enhancer-binding protein that acts as a transcription regulator and plays a role in the modulation of mucin adhesion and flagellar gene expression (PubMed:9287015, PubMed:11673434, PubMed:26362077). In addition to flagella genes, regulates also expression of biofilm-related genes (PubMed:22581773). Functions as a transcriptional repressor in the absence of c-di-GMP and as an activator when c-di-GMP is present (PubMed:22581773).[1] [2] [3] [4]
Publication Abstract from PubMed
Members of the AAA+ (ATPase associated with various cellular activities) family of ATPases couple chemical energy derived from ATP hydrolysis for generation of mechanical force, resulting in conformational changes. The hydrolysis is brought about by highly conserved domains and motifs. The sensor I motif is critical for sensing and hydrolysis of the nucleotide. Pseudomonas aeruginosa FleQ is an ATPase that is a positive regulator of flagellar gene expression. We have determined the crystal structures of the ATPase domain of wild-type FleQ and sensor I mutants H287N and H287A in complex with ATPgammaS and Mg(2+) to 2.4, 1.95, and 2.25 A resolution, respectively. The structural data highlight the role of sensor I in regulating the ATPase activity. The in vitro and in vivo data demonstrate that the moderate ATPase activity of FleQ due to the presence of histidine in sensor I is essential for maintaining the monotrichous phenotype and for the rapid motility to biofilm transition.
Sensor I Regulated ATPase Activity of FleQ Is Essential for Motility to Biofilm Transition in Pseudomonas aeruginosa.,Banerjee P, Chanchal, Jain D ACS Chem Biol. 2019 Jul 19;14(7):1515-1527. doi: 10.1021/acschembio.9b00255. Epub, 2019 Jul 3. PMID:31268665[5]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Dasgupta N, Ramphal R. Interaction of the antiactivator FleN with the transcriptional activator FleQ regulates flagellar number in Pseudomonas aeruginosa. J Bacteriol. 2001 Nov;183(22):6636-44. PMID:11673434 doi:10.1128/JB.183.22.6636-6644.2001
- ↑ Baraquet C, Murakami K, Parsek MR, Harwood CS. The FleQ protein from Pseudomonas aeruginosa functions as both a repressor and an activator to control gene expression from the pel operon promoter in response to c-di-GMP. Nucleic Acids Res. 2012 Aug;40(15):7207-18. PMID:22581773 doi:10.1093/nar/gks384
- ↑ Su T, Liu S, Wang K, Chi K, Zhu D, Wei T, Huang Y, Guo L, Hu W, Xu S, Lin Z, Gu L. The REC domain mediated dimerization is critical for FleQ from Pseudomonas aeruginosa to function as a c-di-GMP receptor and flagella gene regulator. J Struct Biol. 2015 Oct;192(1):1-13. doi: 10.1016/j.jsb.2015.09.002. Epub 2015, Sep 8. PMID:26362077 doi:http://dx.doi.org/10.1016/j.jsb.2015.09.002
- ↑ Arora SK, Ritchings BW, Almira EC, Lory S, Ramphal R. A transcriptional activator, FleQ, regulates mucin adhesion and flagellar gene expression in Pseudomonas aeruginosa in a cascade manner. J Bacteriol. 1997 Sep;179(17):5574-81. PMID:9287015 doi:10.1128/jb.179.17.5574-5581.1997
- ↑ Banerjee P, Chanchal, Jain D. Sensor I Regulated ATPase Activity of FleQ Is Essential for Motility to Biofilm Transition in Pseudomonas aeruginosa. ACS Chem Biol. 2019 Jul 19;14(7):1515-1527. doi: 10.1021/acschembio.9b00255. Epub, 2019 Jul 3. PMID:31268665 doi:http://dx.doi.org/10.1021/acschembio.9b00255
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