Project description:Streptomyces coelicolor A3(2) is a model organism for antibiotic production at high potency. Its chromosome contains over 20 gene clusters responsible for secondary metabolite biosynthesis. This complexity of putatively competing regulatory and biosynthetic pathways can however negatively impact the yield of desired metabolite biosynthesis. Hence, a better understanding of these pathways is crucial for design of high-scale bioengineering processes. For this study proteome changes of certain S. coelicolor biosynthesis mutants were monitored. These were a double mutant with scbA protein deletion and atrA protein overexpression (∆scbA-atrAOE), as well as, an atrA protein deletion mutant (ΔatrA). These two mutants were relatively assessed against, respectively, a single mutant with scbA protein deletion (∆scbA-atrAOE vs ∆scbA-Φ) and a wild-type strain (ΔatrA vs M145).
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: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.
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 microarrays to investigate the temporal transcriptome profiles of S. coelicolor A3(2) afsS::apr mutant strain (YSK4425) and compare it to wild-type M145 strain. The regulatory protein encoded by afsS is known to affect antibiotic biosynthesis (Floriano, B., Bibb, M. 1996. afsR is a pleiotropic but conditionally required regulatory gene for antibiotic production in Streptomyces coelicolor A3(2). Mol Microbiol, 21, 385-96). 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) ∆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
