Stimulation of IS1 excision by bacteriophage P1 ref function

Genome of bacteriophage P1.

P1 is a bacteriophage of Escherichia coli and other enteric bacteria. It lysogenizes its hosts as a circular, low-copy-number plasmid. We have determined the complete nucleotide sequences of two strains of a P1 thermoinducible mutant, P1 c1-100. The P1 genome (93,601 bp) contains at least 117 genes, of which almost two-thirds had not been sequenced previously and 49 have no homologs in other or...

Transduction by Bacteriophage P1: Abnormal Phage Function of the Transducing Particles.

Transduction by bacteriophage, as first described in Salmonella,' is the phagemediated transfer of any one of a number of genetic traits from one bacterial cell to another. The frequency of genetic transfer is quite low, 1: 105-1:108 per infecting phage particle for any one trait. Further study of this phenomenon both in Salmonella and in the coli-dysentery bacteria,2'3. 4, 5 6 showed that clos...

Transduction of Escherichia coli by bacteriophage P1 in soil.

Transduction of Escherichia coli W3110(R702) and J53(RP4) (10(4) to 10(5) CFU/g of soil) by lysates of temperature-sensitive specialized transducing derivatives of bacteriophage P1 (10(4) to 10(5) PFU/g of soil) (P1 Cm cts, containing the resistance gene for chloramphenicol, or P1 Cm cts::Tn501, containing the resistance genes for chloramphenicol and mercury [Hg]) occurred in soil amended with ...

Genome of Bacteriophage P1 Supplemental Material

Curing of P1 prophage from Escherichia coli K-12 recA(P1) lysogens superinfected with P1 bacteriophage.

Curing of the P1 plasmid prophage in recA(P1) lysogens by superinfection with another P1 phage was specific and independent of immunity and incompatibility expression.