Project description:Gene expression in E coli W3110 strains with either ybaO over-expression (W3110/pcutR) or ybaO deletion (W3110/ΔcutR) were measured with cysteine challenge.
Project description:Transcripitonal profiling of Escherichia coli K-12 comparing luxS mutant LW12 with wild type W3110 One-condition experiment, luxS mutant LW12 vs. wild type W3110
Project description:Dynamical response to oxygen downshift under fermentation conditions was tested by taking sample before (S1) and after (S2, S3 and S4) the oxygen downshift. The dynamical changes relevant for ongoing research on physiology were applied. Experiment Overall Design: Four microarray chips were analyzed: Experiment Overall Design: S1 was taken 15 min before the oxygen downshift Experiment Overall Design: S2, S3 and S4 were taken 15 min, 45 min and 75 min after the oxygen downshift, respectively
Project description:Escherichia coli exhibits diauxic growth in sugar mixtures due to CRP-mediated catabolite repression and inducer exclusion related to phosphotransferase system enzyme activity. Replacement of the native crp gene with a catabolite repression mutant (referred to as crp*) alleviates diauxic effects in E. coli and enables co-utilization of glucose and other sugars. While previous studies have examined the effects of expressing CRP* mutants on the expression of specific catabolic genes, little is known about the global transcriptional effects of CRP* expression. In this study, we compare the transcriptome of E. coli W3110 (expressing wild-type CRP) to that of mutant strain PC05 (expressing CRP*) in the presence and absence of glucose. Experiment Overall Design: Four different conditions were tested in this study: W3110 in LB medium (WT), W3110 in LB+glucose medium (WT G), PC05 in LB medium (CRP*), and PC05 in LB+glucose medium (CRP* G).
Project description:We measured the mRNA abundance in E.coli using RNAseq to calculate mRNA lifetimes. The data is used in support of a larger paper on the proteome and transcriptome of E.coli.
Project description:Transcripitonal profiling of Escherichia coli K-12 W3110 comparing cells with and without hydrogen peroxide treatment, two biological replicates each
Project description:Transcriptional profiling of Escherichia coli K-12 comparing luxS mutant LW12 with wild type W3110 exposure to 10mM or 30mM hydrogen peroxide. Two-condition experiment, luxS mutant LW12 vs. wild type W3110, treatment with 10mM hydrogen peroxide for 30min or treatment with 30mM hydrogen peroxide for 30min. Two biological replicates.
