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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Isolation of specialized transducing bacteriophages carrying deletions of the regulatory region of the Escherichia coli K-12 tryptophan operon.

A lysogen of a wild-type strain of Escherichia coli K-12 carrying a heat-inducible lambda-phi80 hybrid prophage was induced to yield transducing phages carrying all of the structural genes of the tryptophan operon. The presence or absence of elements of the trp regulatory region was determined by examining the effects of lambda genes N and cI on trp gene expression. The phages were further characterized by transduction studies and by examining anthranilate synthetase (EC 4.1.3.27) (TRYPE+D) synthesis in the presence of the lambda cI product. A number of phages deleted for the trp promoter were found. Recombination studies between trpOc bacteria and the transducing phages have yielded information that can be used to order the trp end points of some phages and to provide an estimate of the size of the trp promoter region.[1]

References

  1. Isolation of specialized transducing bacteriophages carrying deletions of the regulatory region of the Escherichia coli K-12 tryptophan operon. Jones, B.B., Reznikoff, W.S. J. Bacteriol. (1976) [Pubmed]
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