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Title: Analysis of Salmonella typhimurium hisD3052 revertants: The use of oligodeoxyribonucleotide colony hybridization, PCR, and direct sequencing in mutational analysis

Journal Article · · Environmental and Molecular Mutagenesis; (United States)
;  [1]
  1. Food and Drug Administration, Washington, DC (United States)

A rapid method for determining the DNA sequences of Salmonella typhimurium hisD3052 revertants is presented. DNA colony hybridization was used to analyze revertants previously studied by Isono and Yourno. Synthetic oligodeoxyribonucleotide probes (18-mers) were able to distinguish sequences that differed by a single base pair. Mutant his sequences not identified by probing analysis were amplified using polymerase chain reaction (PCR) and directly sequenced. The combined use of DNA-colony hybridization and direct sequencing offers a precise and rapid means for the molecular characterization of hisD3052 revertants.

OSTI ID:
5610674
Journal Information:
Environmental and Molecular Mutagenesis; (United States), Vol. 18:4; ISSN 0893-6692
Country of Publication:
United States
Language:
English