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

Analysis of promoter mutations in the histidine transport operon of Salmonella typhimurium: use of hybrid M13 bacteriophages for cloning, transformation, and sequencing.

Mutations that cause an increased level of expression of the histidine transport operon were isolated and characterized genetically. Five independently isolated promoter-up mutations were transferred to an M13 hybrid phage that carries the histidine transport operon, and their nucleotide sequences were determined. For all five mutations, the change was the same as the one previously determined for promoter-up mutation dhuA1: a C-to-T change in the Pribnow box rendered this region more homologous to the consensus sequence. Methods for enabling Salmonella typhimurium to support growth of M13 phage effectively and for easy transfer of chromosomal mutations onto the hybrid phage are presented.[1]


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