Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1966-2-19
pubmed:abstractText
Kahn, Phyllis L. (Princeton University, Princeton, N.J.), and Donald R. Helinski. Interaction between colicinogenic factor V and the integrated F factor in an Hfr strain of Escherichia coli. J. Bacteriol. 90:1276-1282. 1965.-The production of colicin V by strains of Escherichia coli is determined by a colicinogenic factor, colV. The colV factor possesses a genetic determinant of fertility, F(v). V(+)F(v) (+) cells are characteristically susceptible to a male-specific phage, mu, and able to transfer the colV factor and chromosomal markers to recipient cells. The present work describes an interaction of the colV factor with the chromosome of the Hfr strain, HfrH. A colV-containing HfrH strain, designated HfrHV(+)F(v) (+)(l), was isolated and shown to be insensitive to phage mu and impaired in its fertility properties. Loss of the colV factor by this strain, either spontaneous or induced by acridine orange, resulted in a further 10(3)- or 10(4)-fold loss in fertility. This additional loss of fertility was restored by reinfection of these strains with the colV factor. The colV interaction with the HfrH chromosome also can result in defects in the fertility properties of the colV factor. Altered colV factors were found in recombinants isolated from a cross between the HfrHV(+)F(v) (+)(l) strain and F(-) recipients. It is postulated that in the HfrHV(+)F(v) (+)(l) strain an interaction of the colV episome with the integrated F region of the chromosome occurs, with a resulting modification of the fertility properties of the HfrH strain. This interaction can also result in a defect in certain properties of the colV factor.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0021-9193
pubmed:author
pubmed:issnType
Print
pubmed:volume
90
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1276-82
pubmed:dateRevised
2009-11-18
pubmed:meshHeading
pubmed:year
1965
pubmed:articleTitle
Interaction between colicinogenic factor V and the integrated F factor in an Hfr strain of Escherichia coli.
pubmed:publicationType
Journal Article, In Vitro