Project description:To identify unique gene expression in cAMP supplemented Streptomyces coelicolor M145 strain. The genes with different gene expression might be key genes to understand the effects of cAMP supplementation on the transcriptome of Streptomyces coelicolor M145.
Project description:This work was carried out to elucidate the proteins that are regulated by the two-component system CutRS in Streptomyces coelicolor M145 and how this response changes in the presence of glucose. A comparison of the whole cell proteomes of Streptomyces coelicolor M145 WT and Streptomyces coelicolor M145 ∆cutRS on both DNA (no glucose) and DNAD (with glucose) was made.
Project description:Antibiotic biosynthesis in Streptomyces species is controlled by a complex genetic and biochemical network of global and pathway specific regulators. Details of their precise interactions in mediating temporal and spatial expression of secondary metabolite genes remain poorly defined. In this study, we employed whole-genome microarray methods to investigate the temporal transcriptome profiles of S. coelicolor A3(2) ∆afsS::apr mutant strain and compared with the M145 Wild-type strain (series submitted separately). Keywords: Time course
Project description:Antibiotic biosynthesis in Streptomyces species is controlled by a complex genetic and biochemical network of global and pathway specific regulators. Details of their precise interactions in mediating temporal and spatial expression of secondary metabolite genes remain poorly defined. In this study, we employed whole-genome microarray methods to investigate the temporal transcriptome profiles of S. coelicolor A3(2) ∆absA1::apr mutant strain and compared with the M145 Wild-type strain (series submitted separately). Keywords: Time course
Project description:Antibiotic biosynthesis in Streptomyces species is controlled by a complex genetic and biochemical network of global and pathway specific regulators. Details of their precise interactions in mediating temporal and spatial expression of secondary metabolite genes remain poorly defined. In this study, we employed whole-genome microarray methods to investigate the temporal transcriptome profiles of S. coelicolor A3(2) ∆absA1::apr mutant strain and compared with the M145 Wild-type strain (series submitted separately). Keywords: Time course
Project description:Streptomyces coelicolor is a model organism for the study of Streptomyces, a genus of Gram-positive bacteria that undergoes a complex life cycle and produces an enormous repertoire of bioactive metabolites and extracellular enzymes. This study investigated the production and characterization of membrane vesicles (MVs) in liquid cultures of S. coelicolor M145 from a structural and biochemical point of view using microscopic, physical and -omics analyzes. Two main populations of MVs, F3 and F4 MVs, with different size and cargo were isolated and purified. S. coelicolor MV cargo is complex and contains many “messages” such as proteins and metabolites. A total of 166 proteins involved in cell metabolism and differentiation, molecular processing and transport was identified in MVs. In particular, a subset of these proteins was protected from the degradation after proteinase K treatment, indicating their localization inside the vesicles. Vesicle proteome includes many stress response proteins which also play an important role in S. coelicolor morpho- physiological differentiation. Moreover, MVs packaged with an array of metabolites such as antibiotics, vitamins, amino acids and components of carbon metabolism. The analysis of S. coelicolor MV cargo will provide informations to elucidate their biogenesis and functions
Project description:During the lifetime of a fermenter culture, the soil bacterium S. coelicolor undergoes a major metabolic switch from exponential growth to antibiotic production. We have studied gene expression patterns during this switch, using a specifically designed Affymetrix GeneChip and a high-resolution time-series of fermenter-grown samples. This time series was conducted using medium leading to glutamate depletion and the cultivation conditions as published in Nieselt et al. BMC Genomics 2010, performed with the Streptomyces coelicolor wild type strain M145E.
Project description:Global transcriptional profiling of the SCO0204 null mutant of Streptomyces coelicolor M145 in comparison to the wildtype M145. Goal was to determine the role of SCO0204.
