Transposon Tn 233(CH) encoding resistance to streptomycin, sulfonamide and mercuric salt was originally resident on Shigella flexneri plasmid DR233. In order to study its molecular characters, Tn233(CH) was transposed...Transposon Tn 233(CH) encoding resistance to streptomycin, sulfonamide and mercuric salt was originally resident on Shigella flexneri plasmid DR233. In order to study its molecular characters, Tn233(CH) was transposed to plasmid pBR322, and展开更多
<正> Ⅰ. INTRODUCTION We have reported that ampicillin resistance gene coding for β-lactamase in plasmid ER396(TcApCmSmSuHg)~r is a gene capable of transducing. When
文摘Transposon Tn 233(CH) encoding resistance to streptomycin, sulfonamide and mercuric salt was originally resident on Shigella flexneri plasmid DR233. In order to study its molecular characters, Tn233(CH) was transposed to plasmid pBR322, and
文摘<正> Ⅰ. INTRODUCTION We have reported that ampicillin resistance gene coding for β-lactamase in plasmid ER396(TcApCmSmSuHg)~r is a gene capable of transducing. When
