Saccharomyces cerevisiae
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA159393 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Transcriptional profiling of Saccharomyces cerevisiae cells comparing the W303-1A wildtype with the W303-1A double mutant for MSN2 and MSN4 during zinc deficient conditions Keywords: Genetic modification with zinc limitation
2008-12-23 | GSE11878 | GEO
Project description:Transcriptional profiling of Saccharomyces cerevisiae cells comparing the W303-1A wildtype with the W303-1A double mutant for MSN2 and MSN4 during zinc deficient conditions Keywords: Genetic modification with zinc limitation Two condition experiment, W303-1A vs W303-1A delta MSN2, MSN4. Biological replicates: 2 wildtype, 2 knock-out, independently grown and harvested.
2008-12-22 | E-GEOD-11878 | biostudies-arrayexpress
Project description:Functional profiling of formaldehyde in yeast
| PRJNA325806 | ENA
Project description:Zinc is indispensable for the catalytic activity and structural stability of many proteins, and its deficiency can have severe consequences for microbial growth in natural and industrial environments. For example, Zn depletion in wort negatively affects beer fermentation and quality. Several studies have investigated yeast adaptation to low Zn supply, but were all performed in batch cultures, where specific growth rate depends on Zn availability. The transcriptional responses to growth-rate and Zn availability are then intertwined, which obscures result interpretation. In the present study, transcriptional responses of Saccharomyces cerevisiae to Zn availability were investigated at a fixed specific growth rate under Zn limitation and excess in chemostat culture. To investigate the context-dependency of this transcriptional response, yeast was grown under several chemostat regimes resulting in various carbon (glucose), nitrogen (ammonium) and oxygen supplies. A robust set of genes that responded consistently to Zn limitation was identified and enabled the definition of a Zn-specific Zap1 regulon comprising of 26 genes and characterized by a broader ZRE consensus (MHHAACCBYNMRGGT) than so far described. Most surprising was the Zn-dependent regulation of genes involved in storage carbohydrate metabolism. Their concerted down-regulation was physiologically relevant as revealed by a substantial decrease in glycogen and trehalose cellular content under Zn limitation. An unexpectedly large amount of genes were synergistically or antagonistically regulated by oxygen and Zn availability. This combinatorial regulation suggested a more prominent involvement of Zn in mitochondrial biogenesis and function than hitherto identified Keywords: Chemostat based transcriptome analysis
2007-10-16 | GSE8089 | GEO
Project description:Functional profiling in yeast with arsenite and monomethylarsonous acid
| PRJNA119963 | ENA
Project description:Zinc is indispensable for the catalytic activity and structural stability of many proteins, and its deficiency can have severe consequences for microbial growth in natural and industrial environments. For example, Zn depletion in wort negatively affects beer fermentation and quality. Several studies have investigated yeast adaptation to low Zn supply, but were all performed in batch cultures, where specific growth rate depends on Zn availability. The transcriptional responses to growth-rate and Zn availability are then intertwined, which obscures result interpretation. In the present study, transcriptional responses of Saccharomyces cerevisiae to Zn availability were investigated at a fixed specific growth rate under Zn limitation and excess in chemostat culture. To investigate the context-dependency of this transcriptional response, yeast was grown under several chemostat regimes resulting in various carbon (glucose), nitrogen (ammonium) and oxygen supplies. A robust set of genes that responded consistently to Zn limitation was identified and enabled the definition of a Zn-specific Zap1 regulon comprising of 26 genes and characterized by a broader ZRE consensus (MHHAACCBYNMRGGT) than so far described. Most surprising was the Zn-dependent regulation of genes involved in storage carbohydrate metabolism. Their concerted down-regulation was physiologically relevant as revealed by a substantial decrease in glycogen and trehalose cellular content under Zn limitation. An unexpectedly large amount of genes were synergistically or antagonistically regulated by oxygen and Zn availability. This combinatorial regulation suggested a more prominent involvement of Zn in mitochondrial biogenesis and function than hitherto identified Keywords: Chemostat-based transcriptome analysis
2007-10-16 | GSE8088 | GEO
Project description:The Zap1 transcription factor is a central player in the response of yeast to changes in zinc status. Zap1 acts as both a positive and negative regulator of its target genes. We previously used transcriptome profiling with DNA microarrays to identify 46 potential Zap1 target genes in the yeast genome. In this study, we have used complementary methods to identify additional Zap1 target genes. With alternative growth conditions for the microarray experiments and a more sensitive motif identification algorithm, we have identified 31 new potential targets of Zap1 activation. Keywords: Yeast Saccharomyces cerevisiae whole genome array We compared cells overexpressing a constitutive allele of Zap1v.s. vector alone (E3) and wild type strain in severe zinc deficiency v.s. zinc-replete condition (E4)
2008-07-04 | E-GEOD-11983 | biostudies-arrayexpress
Project description:Zinc is indispensable for the catalytic activity and structural stability of many proteins, and its deficiency can have severe consequences for microbial growth in natural and industrial environments. For example, Zn depletion in wort negatively affects beer fermentation and quality. Several studies have investigated yeast adaptation to low Zn supply, but were all performed in batch cultures, where specific growth rate depends on Zn availability. The transcriptional responses to growth-rate and Zn availability are then intertwined, which obscures result interpretation. In the present study, transcriptional responses of Saccharomyces cerevisiae to Zn availability were investigated at a fixed specific growth rate under Zn limitation and excess in chemostat culture. To investigate the context-dependency of this transcriptional response, yeast was grown under several chemostat regimes resulting in various carbon (glucose), nitrogen (ammonium) and oxygen supplies. A robust set of genes that responded consistently to Zn limitation was identified and enabled the definition of a Zn-specific Zap1 regulon comprising of 26 genes and characterized by a broader ZRE consensus (MHHAACCBYNMRGGT) than so far described. Most surprising was the Zn-dependent regulation of genes involved in storage carbohydrate metabolism. Their concerted down-regulation was physiologically relevant as revealed by a substantial decrease in glycogen and trehalose cellular content under Zn limitation. An unexpectedly large amount of genes were synergistically or antagonistically regulated by oxygen and Zn availability. This combinatorial regulation suggested a more prominent involvement of Zn in mitochondrial biogenesis and function than hitherto identified. Keywords: Chemostat-based transcriptome analysis
2007-10-16 | GSE8035 | GEO
Project description:Physiological and transcriptional responses of Saccharomyces cerevisiae to zinc limitation in chemostat cultures
| PRJNA100849 | ENA
Project description:The Zap1 transcription factor is a central player in the response of yeast to changes in zinc status. Zap1 acts as both a positive and negative regulator of its target genes. We previously used transcriptome profiling with DNA microarrays to identify 46 potential Zap1 target genes in the yeast genome. In this study, we have used complementary methods to identify additional Zap1 target genes. With alternative growth conditions for the microarray experiments and a more sensitive motif identification algorithm, we have identified 31 new potential targets of Zap1 activation. Keywords: Yeast Saccharomyces cerevisiae whole genome array
2008-07-04 | GSE11983 | GEO