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首页> 外文期刊>Journal of bacteriology >Gene copy number effects in the mer operon of plasmid NR1.
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Gene copy number effects in the mer operon of plasmid NR1.

机译:基因拷贝数对质粒NR1的mer操纵子的影响。

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The level of resistance to Hg2+ determined by the inducible mer operon of plasmid NR1 was essentially the same for three gene copy number variants in Escherichia coli, less in Proteus mirabilis, and intermediate in P. mirabilis "transitioned" to a high r-determinant gene copy number. Cell-free volatilization rates of radioactive mercury indicated increasing levels of intracellular mercuric reductase enzyme from low- to high-gene copy number forms in P. mirabilis and from low- to high-copy number forms in E. coli, but the additional enzyme in E. coli was effectively cryptic.
机译:由质粒NR1的诱导性操纵子决定的Hg2 +抗性水平对于大肠杆菌中的三个基因拷贝数变体而言基本相同,在奇异变形杆菌中较少,而在奇异假单胞菌中间“转化”为高r-决定簇基因副本编号。放射性汞的无细胞挥发速率表明,胞内汞还原酶水平从奇异菌中的低基因拷贝数到高基因拷贝数和大肠杆菌中的低拷贝数到高拷贝数形式增加,但是在大肠杆菌有效地是隐秘的。

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