Detection of listeria by means of recombinant bacteriophages
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United States of America Patent
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Oct 20, 1998
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May 17, 1996
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May 18, 1995
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Abstract
The invention relates to a detection procedure for bacteria of the genus Listeria, comprising the steps: (a) provision of a DNA vector prepared by means of recombination techniques, comprising a genetic system comprising DNA which encodes the expression of one or more proteins, the proteins not being a gene product of bacteria of the genus Listeria and it being possible to determine the presence of the proteins by a detection reaction, and the DNA vector infecting the bacteria of the genus Listeria and it being possible in this way to transfer the genetic system to the bacteria; (b) mixing of the sample with said DNA vector under conditions which allow an infection of bacteria of the genus Listeria by the DNA vector; (c) expression of the detectable proteins in the bacteria of the genus Listeria; (d) detection of the detectable proteins, the presence of bacteria of the genus Listeria being detected, and to recombinant DNA vectors and reagent compositions suitable for this detection procedure.
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