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ARC2 elicits a secondary metabolic response requiring afsR and afsS in Streptomyces coelicolor

ABSTRACT: ARC2 elicits a secondary metabolic response requiring afsR and afsS in Streptomyces coelicolor

PROVIDER: PRJNA704859 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR13783546.fastq.gz	Fastqsanger.gz
	SRR13783547.fastq.gz	Fastqsanger.gz
	SRR13783548.fastq.gz	Fastqsanger.gz
	SRR13783549.fastq.gz	Fastqsanger.gz

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ARC2 elicits a secondary metabolic response requiring afsR and afsS in Streptomyces coelicolor

Project description:In this work, we demonstrate that the addition of the small molecule elicitor ARC2 to Streptomyces coelicolor cultures results in global changes in gene expression including many secondary metabolic genes. A profile of the Streptomyces coelicolor transcriptome in the absence and presence of ARC2 was performed by RNA-seq. Total RNA was extracted after 10 hours of treatment with either the DMSO solvent control or the ARC2 small molecule elicitor. A V2 rapid run mode with paired-end 2x75 bp reads on the Illumina HiSeq platform was performed for RNA sequencing.

2021-02-26 | GSE167526 | GEO

Metabolic switching of the PII protein GlnK in Streptomyces coelicolor

Project description:GlnK is an important nitrogen sensor protein in Streptomyces coelicolor. Deletion of glnK results in a medium-dependent failure of aerial mycelium and spore formation and loss of antibiotic production. Thus, GlnK is not only a regulator of nitrogen metabolism but also of morphological differentiation and secondary metabolite production. Through a comparative transcriptomic approach between the S. coelicolor wild-type and a S. coelicolor glnK mutant strain, 142 genes were identified that are differentially regulated in both strains. Among these are genes of the ram and rag operon, which are involved in S. coelicolor morphogenesis, as well as, genes involved in gas vesicle biosynthesis and ectoine biosynthesis. Surprisingly, no relevant nitrogen genes were found to be differentially regulated, revealing that GlnK is not an important nitrogen sensor under the tested conditions.

2011-12-31 | GSE30570 | GEO

Fractionation of different lignocelullose by Streptomyces coelicolor A3(2) and production of secondary metabolites

Project description:The goal was to study the dfactionation of different lignocelullose (glucose, wheat bran, wheat straw) by Streptomyces coelicolor A3(2) and the corresponding production of secondary metabolites. This was performed by multi-omic experiment such as transcriptomic/metabolomic and leads to the production of new metabolites. For that, the strain Streptomyces coelicolor A3(2) was subjected to two carbon sources in triplicate (wheat bran and glucose as control). Enzymatic activities were studied at different times and the expression of CAZYmes was studied by transcriptomic in order to detect which enzymes are needed for each carbon source

2020-10-01 | E-MTAB-8971 | biostudies-arrayexpress

Cytosolic copper concentration modulates spore germination and secondary metabolism in Streptomyces coelicolor

Project description:We studied the influence of copper in physiological and morphological differentiation of Streptomyces coelicolor. We demonstrate differences in phenotype (germination, growth rate, antibiotic production) and genetic expression between a strain mutated at copper chaperone CopZ (SCO2730::Tn5062), the wild-type strain and a wild-type strain sporulated in a media with 80µM CuSO4. These differences are correlated with the cytosolic copper. Our results demonstrate a pleiotropic effect of copper modulating S. coelicolor development.

2018-12-31 | GSE111126 | GEO

Proteomics survey of Streptomyces coelicolor strains with natural gross chromosome change

Project description:Streptomyces coelicolor normally produce spores with a relatively high heterogeneity, which will produce genetically heterogeneous sub-populations. These sub-populations often exert massive chromosome amplifications and deletions. Cells with gross chromosomal changes produce an increased diversity of secondary metabolites and secrete significantly more antibiotics; however, these changes come at the cost of dramatically reduced individual fitness, providing direct evidence for a trade-off between secondary metabolite production and fitness. We propose that antibiotic production in colonies of the multicellular bacterium Streptomyces coelicolor is coordinated by a division of labour. This proteomics survey will provide more detailed insights into how these chromosomal changed strains behave under normal growth condition.

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Metabolic switching of the PII protein GlnK in Streptomyces coelicolor

2011-12-31 | E-GEOD-30570 | biostudies-arrayexpress

S. coelicolor M752 SMM medium time course study

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) M752 mutant strain, which has an in frame deletion of scbR (SCO6265) and compare it to the wild-type M145 strain. scbR encondes a gamma-butyrolactone binding protein (Takano, E., Chakraburtty, R., Nihira, T., Yamada, Y., and Bibb, M. A complex role for the gamma-butyrolactone SCB1 in regulating antibiotic production in Streptomyces coelicolor A3(2). Mol. Microbiol. 2001 41(5), 1015-1028).

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Cross-regulation among disparate antibiotic biosynthetic pathways of Streptomyces coelicolor

Project description:A complex programme of regulation governs gene expression during development of the morphologically and biochemically complex eubacterial genus Streptomyces. Earlier work has suggested a model in which 'higher level' pleiotropic regulators activate 'pathway-specific' regulators located within chromosomal gene clusters encoding biosynthesis of individual antibiotics. We used mutational analysis and adventitious overexpression of key Streptomyces coelicolor regulators to investigate functional interactions among them. We report here that cluster-situated regulators (CSRs) thought to be pathway-specific can also control other antibiotic biosynthetic gene clusters, and thus have pleiotropic actions. Surprisingly, we also find that CSRs exhibit growth-phase-dependent control over afsR2/afsS, a 'higher level' pleiotropic regulatory locus not located within any of the chromosomal gene clusters it targets, and further demonstrate that cross-regulation by CSRs is modulated globally and differentially during the S. coelicolor growth cycle by the RNaseIII homologue AbsB. Our results, which reveal a network of functional interactions among regulators that govern production of antibiotics and other secondary metabolites in S. coelicolor, suggest that revision of the currently prevalent view of higher-level versus pathway-specific regulation of secondary metabolism in Streptomyces species is warranted. Groups of assays that are related as part of a time series. Keywords: time_series_design

2006-02-02 | GSE4138 | GEO

Genome-wide binding site profiling of NdgR in Streptomyces coelicolor

Project description:We identified genome-wide binding regions of NdgR in Streptomyces coelicolor using chromatin immunoprecipitation sequencing (ChIP-seq). We constructed 6×myc-tagged NdgR strain using homologous recombination with myc-tagging vector. Analysis of the sequencing data aligned to Streptomyces coelicolor genome database (NC_003888).

2014-12-29 | GSE59010 | GEO

Effects of cAMP supplementation on the transcriptome of Streptomyces coelicolor M145 strain

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.

2020-11-27 | GSE158810 | GEO

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