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- W2169238431 endingPage "1451" @default.
- W2169238431 startingPage "1441" @default.
- W2169238431 abstract "Abstract The lacI gene has been used extensively for the recovery and analysis of mutations in bacteria with various DNA repair backgrounds and after exposure to a wide variety of mutagens. This has resulted in a large database of information on mutational mechanisms and specificity of many mutagens, as well as the effect of DNA repair background on mutagenicity. Most importantly, knowledge about the mutational sensitivity of the lacI gene is now available, yielding information about mutable nucleotides. This popularity and available knowledge resulted in the use of the lacI gene in transgenic rodents for the study of mutagenesis in mammals, where it resides in ~40 repeated copies. As the number of sequenced mutations recovered from these animals increases, we are able to analyze the sites at which mutations have been recovered in great detail and to compare the recovered sites between bacteria and transgenic animals. The nucleotides that code for the DNA-binding domain are nearly saturated with base substitutions. Even after determining the sequences of ~10,000 mutations recovered from the animals, however, new sites and new changes are still being recovered. In addition, we compare the nature of deletion mutations between bacteria and animals. Based on the nature of deletions in the animals, we conclude that each deletion occurs in a single copy of the gene." @default.
- W2169238431 created "2016-06-24" @default.
- W2169238431 creator A5021402468 @default.
- W2169238431 creator A5052729661 @default.
- W2169238431 date "1998-04-01" @default.
- W2169238431 modified "2023-10-15" @default.
- W2169238431 title "The lacI Gene as a Target for Mutation in Transgenic Rodents and Escherichia coli" @default.
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- W2169238431 doi "https://doi.org/10.1093/genetics/148.4.1441" @default.
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- W2169238431 hasPublicationYear "1998" @default.
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