title: Regulation of ugp, the sn-glycerol-3-phosphate transport system of Escherichia coli K-12 that is part of the pho regulon.
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.
mesh_terms: D000469:Alkaline Phosphatase / Q000235:genetics; D001692:Biological Transport; D004926:Escherichia coli / Q000235:genetics* / Q000378:metabolism; D005786:Gene Expression Regulation; D005798:Genes, Bacterial; D005994:Glycerophosphates / Q000378:metabolism*; D026901:Membrane Transport Proteins / Q000235:genetics*; D009876:Operon; D010710:Phosphates / Q000502:physiology*
chemical_list: D005994:Glycerophosphates; D026901:Membrane Transport Proteins; D010710:Phosphates; D000469:Alkaline Phosphatase