guanosine-tetraphosphate and galactose-1-phosphate

guanosine-tetraphosphate has been researched along with galactose-1-phosphate* in 1 studies

Other Studies

1 other study(ies) available for guanosine-tetraphosphate and galactose-1-phosphate

Article	Year
Growth-phase regulation of the Escherichia coli thioredoxin gene. Biochimica et biophysica acta, 2000, Apr-25, Volume: 1491, Issue:1-3 The two promoters of Escherichia coli trxA gene were separately cloned into pKO100 as well as pJEL170. Galactokinase expression in cells containing the pKO100 derivatives was found to be negatively correlated with growth rate and was 6- to 20-fold higher in stationary cultures than in exponential cultures. The expression of trxA-galK was induced by amino acid starvation in a RelA(+) strain but not in an isogenic Rel(-) strain indicating that the control involves guanosine 3',5'-bispyrophosphate (ppGpp). RpoS, which appears to be essential for expression of most stationary phase expressed genes, is not required for trxA expression. Increased expression of relA, which increases ppGpp concentration, increases trxA expression. Topics: Amino Acids; Escherichia coli; Galactokinase; Galactosephosphates; Gene Expression Regulation; Genes, Bacterial; Guanosine Tetraphosphate; Plasmids; Promoter Regions, Genetic; Single-Strand Specific DNA and RNA Endonucleases; Thioredoxins	2000

Article

Year

Growth-phase regulation of the Escherichia coli thioredoxin gene.

Biochimica et biophysica acta, 2000, Apr-25, Volume: 1491, Issue:1-3

The two promoters of Escherichia coli trxA gene were separately cloned into pKO100 as well as pJEL170. Galactokinase expression in cells containing the pKO100 derivatives was found to be negatively correlated with growth rate and was 6- to 20-fold higher in stationary cultures than in exponential cultures. The expression of trxA-galK was induced by amino acid starvation in a RelA(+) strain but not in an isogenic Rel(-) strain indicating that the control involves guanosine 3',5'-bispyrophosphate (ppGpp). RpoS, which appears to be essential for expression of most stationary phase expressed genes, is not required for trxA expression. Increased expression of relA, which increases ppGpp concentration, increases trxA expression.

Topics: Amino Acids; Escherichia coli; Galactokinase; Galactosephosphates; Gene Expression Regulation; Genes, Bacterial; Guanosine Tetraphosphate; Plasmids; Promoter Regions, Genetic; Single-Strand Specific DNA and RNA Endonucleases; Thioredoxins

2000