rdf:type |
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lifeskim:mentions |
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pubmed:issue |
1
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pubmed:dateCreated |
2002-6-21
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pubmed:abstractText |
In Pseudomonas aeruginosa the LasR-LasI and RhlR-RhlI quorum-sensing (QS) systems control expression of numerous virulence genes in a population density-dependent fashion. In this study, we investigated regulation of the autoinducer synthase gene rhlI, which is responsible for C(4)-HSL signal production. Primer extension analysis was used to map the rhlI transcriptional start site and an upstream regulatory region was identified. Expression studies revealed that (i) this regulatory region is important for rhlI expression and (ii) although the rhl QS system will induce rhlI, las is the dominant regulator. Furthermore, we found that control of rhlI in Escherichia coli is markedly different than in P. aeruginosa.
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pubmed:grant |
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Bacterial Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/DNA-Binding Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/LasI protein, Pseudomonas aeruginosa,
http://linkedlifedata.com/resource/pubmed/chemical/LasR protein, Pseudomonas aeruginosa,
http://linkedlifedata.com/resource/pubmed/chemical/Ligases,
http://linkedlifedata.com/resource/pubmed/chemical/RHLI protein, Pseudomonas aeruginosa,
http://linkedlifedata.com/resource/pubmed/chemical/RhlR protein, Pseudomonas aeruginosa,
http://linkedlifedata.com/resource/pubmed/chemical/Trans-Activators,
http://linkedlifedata.com/resource/pubmed/chemical/Transcription Factors
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pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0378-1097
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pubmed:author |
|
pubmed:issnType |
Print
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pubmed:day |
18
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pubmed:volume |
212
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
101-6
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:12076794-Bacterial Proteins,
pubmed-meshheading:12076794-Base Sequence,
pubmed-meshheading:12076794-DNA-Binding Proteins,
pubmed-meshheading:12076794-Escherichia coli,
pubmed-meshheading:12076794-Gene Expression Regulation, Bacterial,
pubmed-meshheading:12076794-Ligases,
pubmed-meshheading:12076794-Molecular Sequence Data,
pubmed-meshheading:12076794-Operator Regions, Genetic,
pubmed-meshheading:12076794-Pseudomonas aeruginosa,
pubmed-meshheading:12076794-Trans-Activators,
pubmed-meshheading:12076794-Transcription, Genetic,
pubmed-meshheading:12076794-Transcription Factors
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pubmed:year |
2002
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pubmed:articleTitle |
Role of the Pseudomonas aeruginosa las and rhl quorum-sensing systems in rhlI regulation.
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pubmed:affiliation |
Department of Microbiology, University of Manitoba, Winnipeg, Manitoba, Canada R3T 2N2.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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