Nucleosome positioning in Yeast
Ontology highlight
ABSTRACT:
ORGANISM(S): Saccharomyces cerevisiae
PROVIDER: GSE52355 | GEO | 2014/02/04
SECONDARY ACCESSION(S): PRJNA227459
REPOSITORIES: GEO
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Project description:We report nucleosome poisitioning in Yeast Mono-nucleosome DNA was mapped
2014-02-04 | E-GEOD-52355 | biostudies-arrayexpress
Project description:To measure nucleosome positions on a genomic scale, we developed a high-throughput DNA microarray method to identify nucleosomal and linker DNA sequences based on susceptibility of linker DNA to micrococcal nuclease. Nucleosomal DNA was isolated and labeled with Cy3 fluorescent dye (green), and mixed with Cy5-labeled total genomic DNA (red). This mixture was hybridized to microarrays printed with overlapping 50mer oligonucleotide probes tiled across chromosomal regions of interest. Keywords = nucleosome Keywords = yeast Keywords = tiling microrray Keywords: repeat sample
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Project description:We describe the genome-wide nucleosome profiles of four related yeast species. All species display the same global organization features first described in S. cerevisiae: a stereotypical nucleosome organization along genes, and the classification of promoters into these which contain or lack a pronounced Nucleosome Depleted region (NDR), with the latter displaying a more dynamic pattern of gene expression. This global similarity, however, does not reflect a static evolutionary pattern, as nucleosome positioning at specific genes diverged rapidly leaving practically no similarity between S. cerevisiae and C. glabrata orthologs (~50 Myr). We show that this rapid divergence in nucleosome positioning contrasts a conserved pattern of gene expression, consistent with the idea that divergence of nucleosome patterns has a limited effect on gene expression as many different configurations can support the same regulatory outcome.
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Project description:We report nucleosome poisitioning under pertubation conditions such as heat shock, CHD1 deletion, and SET2 deletion Mono-nucleosome DNA was prepared from wild type strain under normal or heat shock conditions, or CHD1 or SET2 deletion strain. The mono-nucleosome DNA was mapped.
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Project description:We present Micrococcal Nuclease digestion maps of S. cerevisiae through the progression of the Yeast Metabolic Cycle. We demonstrate that nucleosome positions at many promoters are dynamic, and remodeling events at promoters have significant consequences with respect to gene expression. Examination of nucleosome positions and transcriptional output through metabolic oscillations in budding yeast.
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Project description:We report nucleosome poisitioning under pertubation conditions such as heat shock, CHD1 deletion, and SET2 deletion
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Project description:To measure nucleosome positions on a genomic scale, we developed a high-throughput DNA microarray method to identify nucleosomal and linker DNA sequences based on susceptibility of linker DNA to micrococcal nuclease. Nucleosomal DNA was isolated and labeled with Cy3 fluorescent dye (green), and mixed with Cy5-labeled total genomic DNA (red). This mixture was hybridized to microarrays printed with overlapping 50mer oligonucleotide probes tiled across chromosomal regions of interest. Keywords = nucleosome Keywords = yeast Keywords = tiling microrray
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