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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
9
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pubmed:dateCreated |
1987-2-19
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pubmed:abstractText |
The virulence-associated factors of Yersinia pestis, which determine the abilities to produce pesticin I (Pst+), capsular fraction I antigen (Fra+), V and W antigen complex (Vwa+) and a cell-surface component for adsorption of exogenous pigments (Pgm+), were independently eliminated by cultivation of the cells in the presence of acridine orange, ethidium bromide or sodium dodecyl sulfate at a subinhibitory concentration. A virulent Y. pestis strain, Yreka, harbored at least five extrachromosomal DNA molecules of different sizes. In these molecules, a novel 13-megadalton DNA which was cured concomitantly with the elimination of the Fra factor was found, in addition to the known species of 7 and 44 megadaltons which were lost with the conversions to Pst- and Vwa-, respectively. Although the conversion to Pgm- could not be correlated with the lack of any proper extra-chromosomal DNA, the factor was transmitted to Pgm- cells with the aid of self-conjugative RP4 plasmid. The cells acquiring the Pgm factor regained virulence for mice.
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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:issn |
0385-5600
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
30
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
837-48
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pubmed:dateRevised |
2006-5-1
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pubmed:meshHeading |
pubmed-meshheading:3796319-Acridine Orange,
pubmed-meshheading:3796319-Animals,
pubmed-meshheading:3796319-Conjugation, Genetic,
pubmed-meshheading:3796319-DNA, Bacterial,
pubmed-meshheading:3796319-Ethidium,
pubmed-meshheading:3796319-Female,
pubmed-meshheading:3796319-Mice,
pubmed-meshheading:3796319-Microscopy, Electron,
pubmed-meshheading:3796319-Plasmids,
pubmed-meshheading:3796319-Sodium Dodecyl Sulfate,
pubmed-meshheading:3796319-Virulence,
pubmed-meshheading:3796319-Yersinia pestis
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pubmed:year |
1986
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pubmed:articleTitle |
Plasmid-like properties of the four virulence-associated factors of Yersinia pestis.
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pubmed:publicationType |
Journal Article
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