Transposon mutagenesis in Desulfovibrio desulfuricans: development of a random mutagenesis tool from Tn7

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Transposon mutagenesis in Desulfovibrio desulfuricans: development of a random mutagenesis tool from Tn7.

The transposons Tn5, Tn7, Tn9, and Tn10 or their derivatives have been examined for transposition in the sulfate-reducing bacterium Desulfovibrio desulfuricans G20. Tn7 inserted with a frequency of 10(-4) to 10(-3) into a unique attachment site that shows strong homology with those sites identified in other gram-negative bacteria. Inactivation of the tnsD gene in Tn7, encoding the function dire...

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Genetic studies of Campylobacter jejuni have been limited due to the lack of a transposon mutagenesis method. Here, we describe a novel technique for random transposon mutagenesis using a mariner-based transposon into C. jejuni strain 480. Insertions were random, as demonstrated by Southern blot analysis and insertional junction sequencing. We have demonstrated, for the first time, random in vi...

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We describe and characterize a method for insertional mutagenesis of the yeast pathogen Candida glabrata using the bacterial transposon Tn7. Tn7 was used to mutagenize a C. glabrata genomic fosmid library. Pools of random Tn7 insertions in individual fosmids were recovered by transformation into Escherichia coli. Subsequently, these were introduced by recombination into the C. glabrata genome. ...

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We present here an unbiased and extremely versatile insertional library of yeast genomic DNA generated by in vitro mutagenesis with a multipurpose element derived from the bacterial transposon Tn7. This mini-Tn7 element has been engineered such that a single insertion can be used to generate a lacZ fusion, gene disruption, and epitope-tagged gene product. Using this transposon, we generated a p...

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ژورنال

عنوان ژورنال: Applied and Environmental Microbiology

سال: 1996

ISSN: 0099-2240,1098-5336

DOI: 10.1128/aem.62.10.3762-3767.1996