Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
1987-2-19
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.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0385-5600
pubmed:author
pubmed:issnType
Print
pubmed:volume
30
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
837-48
pubmed:dateRevised
2006-5-1
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
Plasmid-like properties of the four virulence-associated factors of Yersinia pestis.
pubmed:publicationType
Journal Article