Source:http://linkedlifedata.com/resource/pubmed/id/18628491
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
Pt 8
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pubmed:dateCreated |
2008-7-16
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pubmed:abstractText |
A mini-Tn5lacZ1 transposon insertion in a gene encoding an orthologue of the Lon protease conferred a hyper-swarming phenotype on Proteus mirabilis. The lon mutation increased the accumulation of mRNA for representative class 1 (flhDC), class 2 (fliA) and class 3 (flaA) genes during swarmer cell differentiation. In addition, the stability of the FlhD protein was fourfold higher in the lon : mini-Tn5lacZ1 background. Expression of a single-copy lon : lacZ fusion increased during the swarming cycle and reached peak levels of expression at a point just after swarmer cell differentiation had initiated. In liquid media, a condition normally non-permissive for swarming, the lon : : mini-Tn5lacZ1 insertion resulted in motile, highly elongated cells that overexpressed flagellin. Finally, the lon : : mini-Tn5lacZ1 mutation was shown to result in increased expression of the hpmBA and zapA virulence genes during swarmer cell differentiation.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0022-2615
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
57
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
931-7
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pubmed:meshHeading |
pubmed-meshheading:18628491-Bacterial Proteins,
pubmed-meshheading:18628491-Blotting, Northern,
pubmed-meshheading:18628491-Cell Movement,
pubmed-meshheading:18628491-Cloning, Molecular,
pubmed-meshheading:18628491-DNA Primers,
pubmed-meshheading:18628491-DNA Transposable Elements,
pubmed-meshheading:18628491-Flagella,
pubmed-meshheading:18628491-Gene Expression Regulation, Bacterial,
pubmed-meshheading:18628491-Mutation,
pubmed-meshheading:18628491-Phenotype,
pubmed-meshheading:18628491-Polymerase Chain Reaction,
pubmed-meshheading:18628491-Protease La,
pubmed-meshheading:18628491-Proteus mirabilis,
pubmed-meshheading:18628491-Virulence
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pubmed:year |
2008
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pubmed:articleTitle |
The Lon protease regulates swarming motility and virulence gene expression in Proteus mirabilis.
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pubmed:affiliation |
Research Service, Veterans Affairs Medical Center, Decatur, GA, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.
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