Binding of an Escherichia coli double-stranded DNA virus PRD1 to a receptor coded by an IncP-type plasmid.
IncP plasmid RP1 Tra regions are needed to assemble the receptor for lipid-containing double-stranded DNA bacteriophage PRD1 on the cell surface. Using radioactively labeled phage and electron microscopic techniques, we showed that the surfaces of Salmonella typhimurium(RP1) and Escherichia coli(RP1) cells contained approximately 50 and 20 PRD1 binding sites, respectively. Expression of the receptor was growth phase dependent and was highest at late logarithmic or early stationary phase. The PRD1-resistant RP1 transposon mutants isolated were all Tra-, and the transposons were located in both the Tra1 and Tra2 regions.
Department of Genetics, University of Helsinki, Finland.
M M
MM
Kotilainen
A M
AM
Grahn
J K
JK
Bamford
D H
DH
Bamford
D003090:Coliphages / Q000187:drug effects / Q000254:growth & development*; D004252:DNA Mutational Analysis; D004251:DNA Transposable Elements; D004926:Escherichia coli / Q000235:genetics* / Q000378:metabolism / Q000648:ultrastructure; D008070:Lipopolysaccharides / Q000494:pharmacology; D008854:Microscopy, Electron; D016254:Mutagenesis, Insertional; D016624:Negative Staining; D010957:Plasmids / Q000235:genetics*; D011991:Receptors, Virus / Q000235:genetics* / Q000378:metabolism; D012486:Salmonella typhimurium / Q000187:drug effects / Q000378:metabolism / Q000648:ultrastructure
D004251:DNA Transposable Elements; D008070:Lipopolysaccharides; D011991:Receptors, Virus