Construction of Escherichia coli gene expression level perturbation collection.

Abstract excerpt

We generated 61 strains of Escherichia coli in which the expression level of a specific single gene can be changed continuously over a physiologically significant range. In each strain, one auxotrophic gene was deleted from its original position and reinserted at a specific position on the chromosome under the control of the tetA promoter. Therefore, the level of expression of the target gene can be controlled...

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