RESULTS Effect of MOI and RecD on transposition frequency. Figure 1 represents the
transposition frequency of Tn10 using a λ phage (NK561) delivery system with E. coli R594 …

Both RecBC and RecF are involved in the regulation of Tn10 in the genome of transposed
Escherichia. coli cells. Depending on the conditions to which cells are exposed, either …

We have shown that excision and transposition of Tn5 in Escherichia coli are greatly
increased by recA (Prtc) genes, which encode constitutively activated RecA proteins (C.-T …

Two basic types of models, conservative and replicative, have been proposed to account for
the mechanism of transposition in bacteria. A method was developed to test these models by …

It has been shown that the increased frequency of precise excision of Tn10 observed after
UV or mitomycin C (MMC) treatment or with uvrD− mutants is recA-dependent. Previous …

Two Escherichia coli K-12 Hfr strains have been constructed which transfer a recA deletion,
which is highly linked to a Tn10 insertion conferring tetracycline resistance, early during …

The Escherichia coli RecR protein participates in a recombinational DNA repair process. Its
gene is located in a region of chromosome that extends from 502 to 509 kilobases on the …

The mini-Tn10 transposon (delta 16 delta 17Tn10) confers tetracycline resistance. When
inserted between a gene and its promoter, it blocks transcription and prevents expression of …

ABSTRACT A number of independent insertions into bacteriophage λ of the translocatable
tetracycline-resistance element Tn10 have been isolated and characterized.—The physical …

Pairs of normally incompatible derivatives of R100-1 (one ChlS TetR, the other ChilR TetS)
were forced to coexist in a recA host by selection for ChlR TetR cells. After many generations …