An Improved System for Selection of Forward Mutations in an Escherichia coli supF Gene Carried by Plasmids.

DOI NDLデジタルコレクション NDLデジタルコレクション PDF Web Site ほか2件をすべて表示 一部だけ表示 被引用文献18件 参考文献25件 オープンアクセス
  • OBATA FUMIKO
    Biological Institute, Graduate School of Science, Tohoku University
  • NUNOSHIBA TATSUO
    Biological Institute, Graduate School of Science, Tohoku University
  • HASHIMOTO-GOTOH TAMOTSU
    Department of Biochemistry and Molecular Genetics, Kyoto Prefectural University of Medicine
  • YAMAMOTO KAZUO
    Biological Institute, Graduate School of Science, Tohoku University

書誌事項

タイトル別名
  • Improved System for Selection of Forward Mutations in an Escherichia coli supF Gene Carried by Plasmids
公開日
1998
資源種別
journal article
DOI
  • 10.1269/jrr.39.263
公開者
Journal of Radiation Research 編集委員会

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説明

An improved system to examine forward mutations that occurred in the supF gene of Escherichai coli carried on a multicopy plasmid is described. The system was validated by measuring spontaneous mutations of supF plasmids propagated in wild-type, recA- and mutM- mutY- E. coli strains, the mutation frequencies of which were 1.3 × 10-7, 6.3 × 10-7 and 1.5 × 10-6, respectively. Sequence analysis of the supF mutant plasmids revealed that G:C→T:A and G:C→C:G transversions dominated. This improved system allows rapid scoring and sequencing forward mutations in the supF gene, thus permitting its use as a genetic target for repair and mutagenesis studies in bacteria and mammalian cells.

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