中科院上海神经科学研究所蒋辉博士一篇论文已被国际顶级刊物Cell接收,即将 Cell. 1980 Aug;21(1):251-5. The transposition properties of Tn2 in E. coli. Wang A, Dai X, Lu D. We report the characterization of Tn2 transpositions into the chromosome and into an F lacproB episome of E. coli. When Tn2 transposes into the chromosome a proportion of the insertions result in auxotrophy. These insertions can revert to prototrophs and lose ampicillin resistance concomitantly. However, Tn2 insertions in F lacproB are often associated with deletions, and it seems probable that insertion and deletion occur simultaneously. (责任编辑:泉水) |