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  • Title: Regulation of ugp, the sn-glycerol-3-phosphate transport system of Escherichia coli K-12 that is part of the pho regulon.
    Author: Schweizer H, Boos W.
    Journal: J Bacteriol; 1985 Jul; 163(1):392-4. PubMed ID: 3891739.
    Abstract:
    The expression of the ugp-dependent sn-glycerol-3-phosphate transport system that is part of the pho regulon was studied in mutants of Escherichia coli K-12 containing regulatory mutations of the pho regulon. The phoR and phoST gene products exerted a negative control on the expression of ugp. Induction of the system was positively controlled by the phoB, phoM, and phoR gene products. Using a ugp-lacZ operon fusion, we showed that the ugp and phoA genes were coordinately derepressed and repressed.
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