Streptomyces chattanoogensis
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PROVIDER: PRJNA256297 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:DNA microarray analysis of ∆scnAB in Streptomyces chattanoogensis L10
| PRJNA296049 | ENA
Project description:scnA (GenBank: ADX66464.1) and scnB (GenBank: ADX66465.1) are ABC transporters located in the biosysnthesis gene cluster of natamycin in Streptomyces chattanoogensis. The two genes are presumbly involved in natamycin efflux. Our goal of this expriment was to investigate the effect of scnA and scnB inactivation on the gene expression in the whole genome. In ∆scnAB there were a total of 219 genes displaying at least a two-fold change (P<0.05), including 89 genes with lower and 130 genes with higher expressions
2015-09-17 | GSE73086 | GEO
Project description:Global regulation by the Streptomyces coelicolor atypical MerR-like transcription factor BldC. BldC is a transcriptional regulator essential for morphological development and antibiotic production in Streptomyces coelicolor. Here we identify the BldC regulon by means of chromatin immunoprecipitation (ChIP) microarray analysis. The BldC regulon encompasses at least 201 transcriptional units, which include many genes that play key roles in Streptomyces development (e.g., bldC itself, bldB, bldM, whiB, whiD, whiI, sigF, smeA-sffA, hupS), antibiotic production (e.g., afsK) and stress response (e.g., clpB, nsrR, sigE, sigF). All BldC-binding sites identified by ChIP-chip are present in the promoters of the target genes. In vitro DNA-binding experiments show that BldC is capable of binding DNA specifically in the absence of other proteins and suggest that BldC is a minor-groove DNA-binding protein. The regulon of BldC partially overlaps with that of the pleiotropic regulator BldD. BldC and BldD bind to distinct sites in the promoter region of smeA, where they simultaneously repress its transcription.
2013-01-01 | GSE28908 | GEO
Project description:Streptomyces chattanoogensis overview
| PRJNA257117 | ENA
Project description:scnA (GenBank: ADX66464.1) and scnB (GenBank: ADX66465.1) are ABC transporters located in the biosysnthesis gene cluster of natamycin in Streptomyces chattanoogensis. The two genes are presumbly involved in natamycin efflux. Our goal of this expriment was to investigate the effect of scnA and scnB inactivation on the gene expression in the whole genome. In ∆scnAB there were a total of 219 genes displaying at least a two-fold change (P<0.05), including 89 genes with lower and 130 genes with higher expressions In this study, RNA isolated from ∆scnAB or wild type Streptomyces chattanoogensis L10, was used to acquire expression profiles of a total of 8,117 protein-coding genes in S. chattanoogensis L10, leading to the successful construction of different expression profiles between scnA and scnB deletion mutant and wild type S. chattanoogensis L10.
2015-09-17 | E-GEOD-73086 | biostudies-arrayexpress
Project description:Two component sensor-response regulator systems (TCSs) are very common in the genomes of the Streptomyces species that have been fully sequenced to date. It has been suggested that this large number is an evolutionary response to the variable environment that Streptomyces encounter in soil. Notwithstanding this, TCSs are also more common in the sequenced genomes of other Actinomycetales when these are compared to the genomes of most other eubacteria. In this study, we have used DNA/DNA genome microarray analysis to compare fourteen Streptomyces species and one closely related genus to Streptomyces coelicolor in order to identify a core group of such systems. This core group is compared to the syntenous and non-syntenous TCSs present in the genome sequences of other Actinomycetales in order to separate the systems into those present in Actinomycetales in general, the Streptomyces specific systems and the species specific systems. Horizontal transfer does not seem to play a very important role in the evolution of the TCS complement analyzed in this study. However, cognate pairs do not necessarily seem to evolve at the same pace, which may indicate the evolutionary responses to environmental variation may be reflected differently in sequence changes within the two components of the TCSs. The overall analysis allowed subclassification of the orphan TCSs and the TCS cognate pairs and identification of possible targets for further study using gene knockouts, gene overexpression, reporter genes and yeast two hybrid analysis.
2009-01-31 | GSE13621 | GEO
Project description:Sigma factor WhiGch positively regulates natamycin production in Streptomyces chattanoogensis L10
| PRJNA254066 | ENA
Project description:Biofilms are ubiquitous in natural, medical, and engineering environments. While most antibiotics that primarily aim to inhibit cell growth may result in bacterial drug resistance, biofilm inhibitors do not affect cell growth and there is less chance of developing resistance. This work sought to identify novel, non-toxic and potent biofilm inhibitors from Streptomyces bacteria for reducing the biofilm formation of Pseudomonas aeruginosa PAO1. Out of 4300 Streptomyces strains, one species produced and secreted peptide(s) to inhibit P. aeruginosa biofilm formation by 93% without affecting the growth of planktonic cells. Global transcriptome analyses (DNA microarray) revealed that the supernatant of the Streptomyces 230 strain induced phenazine, pyoverdine, and pyochelin synthesis genes. Electron microscopy showed that the supernatant of Streptomyces 230 strain reduced the production of polymeric matrix in P. aeruginosa biofilm cells, while the Streptomyces species enhanced swarming motility of P. aeruginosa. Therefore, current study suggests that Streptomyces bacteria are an important resource of biofilm inhibitors as well as antibiotics.
2013-03-21 | GSE28194 | GEO
Project description:Transcriptome analysis of ∆scgA at three time points
| PRJNA256989 | ENA
Project description:Streptomyces bingchenggensis is a soil bacterium that produces a family of macrolide antibiotics, milbemycins, which is commercially important in crop protection, human and veterinary medicine. After the complete genome sequence, and annotation, for further development of our gene expression approach to biosynthesis, we have employed whole genome microarray expression profiling as a discovery platform to obtain improved specificity and sensitivity of gene expression analysis, allowing a global and at the same time detailed picture of how gene clusters for secondary metabolism are modulated. In the result, we confirmed the expression mil and nan gene cluster, furthermore, pks3, pks5 and nrps7, nrps8 also showed significant gene expression, but no obvious products detected. In Streptomyces bingchenggensis, there are also corresponding genes belonging to Defense mechanisms, which is much more than other Streptomyces, for the resistance of own metabolites and dealing with complex environmental factors.
2011-09-20 | GSE32205 | GEO