Project description:Accurately controlled termination of transcription is critical for gene expression and adaptation to changing environments in bacteria. The aim of this study was to define transcription termination sites in Mycobacterium tuberculosis at nucleotide resolution. To this end, we used a combination of term-seq to identify termination of transcription and tagRNA-seq to identify transcription start sites and processed sites. This led us to identify a prevalence of Rho-dependent termination of transcription in the pathogen. We applied term-seq and WTSS RNA-seq on the RhoDUC strain derived from H37Rv, for which a depletion of Rho is inducible by addition of Anhydrous Tetracyclin, to identify Rho-responsive termination site and quantify readthrough.
Project description:Transcriptional profiling of Mycobacterium tuberculosis H37Rv strains comparing control DMSO treated strains with Linezolid treated strains. Goal was to determine the effects of Linezolid against Mycobacterium tuberculosis H37Rv strains.
Project description:Transcriptional profiling of Mycobacterium tuberculosis H37Rv strains comparing control DMSO treated strains with Lupulone treated strains. Goal was to determine the effects of Lupulone against Mycobacterium tuberculosis H37Rv strains.
Project description:Transcriptional profiling of Mycobacterium tuberculosis H37Rv strains comparing control DMSO treated strains with Lupulone treated strains. Goal was to determine the effects of Lupulone against Mycobacterium tuberculosis H37Rv strains. Two-condition experiment,control DMSO treated strains vs. Lupulone treated strains. Biological replicates: 2 control replicates, 2 Lupulone replicates.
Project description:Transcriptional profiling of Mycobacterium tuberculosis H37Rv strains comparing control DMSO treated strains with Linezolid treated strains. Goal was to determine the effects of Linezolid against Mycobacterium tuberculosis H37Rv strains. Two-condition experiment,control DMSO treated strains vs. Linezolid treated strains. Biological replicates: 2 control replicates, 2 Linezolid replicates.
Project description:Investigation of whole genome gene expression level changes in Mycobacterium tuberculosis treated with the DHFR inhibitor WR99210, compared to untreated cells. The antimycobacterial properties of WR99210 are further described in Gerum, A., Ulmer, J., Jacobus, D., Jensen, N., Sherman, D., and C. Sibley. 2002. Novel Saccharomyces cerevisiae screen identifies WR99210 analogues that inhibit Mycobacterium tuberculosis dihydrofolate reductase. Antimicrob Agents Chemother 46(11):3362-3369 [PMID:12384337]
Project description:Transcriptional profiling of M.tb H37Rv cells comparing control wild type H37Rv with H37Rv cells electroporated with constitutive expression plasmid pVV16 expressing ESAT-6 binding peptide SL3. The expression of SL3 makes H37Rv less virulent during ex vivo and BalB/c mice infections, sequesters ESAT-6 inside M.tb cells and cause severe defects in mycobacterial morphology. Goal was to determine the effects of SL3 expression on global H37Rv gene expression. Two color Experiment,Organism: Mycobacterium Tuberculosis, ilife Discoveries designed Custom Mycobacterium tuberculosis on 8x15k GE Microarray. Two-condition experiment, H37Rv vs. H37Rv/SL3. Biological replicates: 2 biological control H37RV replicates labelled with Cy3, 2 SL3 biological expressing replicates labelled with Cy5.
Project description:Mycobacterium tuberculosis (MTB) is a species of pathogenic bacteria and the causative agent of tuberculosis. The type strain H37Rv has been sequenced in 1998, while many previous studies found its predicted genes exhibit frequent errors, particularly in start codons. Here, we applied a TMPP [(N-Succinimidyloxycarbonylmethyl) tris (2,4,6-trimethoxyphenyl) phosphonium bromide] labeling combined with StageTip separating strategy to characterize the N-terminal peptides. We identified 2,598 annotated proteins, which 1,078 proteins were labeled by TMPP.
Project description:Time -course transcriptional profiling of arginine starved Mycobacterium tuberculosis H37Rv ΔargB or ΔargF realtive to day 0 of starvation
