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首页> 外文期刊>Journal of bacteriology >Identification of OmpR: a positive regulatory protein controlling expression of the major outer membrane matrix porin proteins of Escherichia coli K-12.
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Identification of OmpR: a positive regulatory protein controlling expression of the major outer membrane matrix porin proteins of Escherichia coli K-12.

机译:OmpR的鉴定:一种阳性调节蛋白,可控制大肠杆菌K-12主要外膜基质孔蛋白的表达。

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摘要

We report here on the cloning of a gene located within the ompB locus of E. coli K-12. This gene, designated ompR, resides on a 10.9-kilobase EcoRI fragment that we cloned, using a lambda vector and in vitro packaging techniques. By subcloning portions of this fragment into the high-copy-number plasmid pBR322, we have isolated the ompR gene on a 1.4-kilobase EcoRI-AvaI fragment. This fragment has been characterized physically and will facilitate a more detailed study of the role and mechanism of porin regulation by the ompB locus.
机译:我们在这里报告了位于大肠杆菌K-12的ompB位点内的基因的克隆。使用lambda载体和体外包装技术,该基因称为ompR,位于我们克隆的10.9千碱基EcoRI片段上。通过将该片段的部分亚克隆到高拷贝数质粒pBR322中,我们已经在1.4碱基碱基的EcoRI-AvaI片段上分离了ompR基因。该片段已被物理表征,将有助于对ompB基因座调控孔蛋白的作用和机制进行更详细的研究。

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