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GSE20591
Saccharomyces cerevisiae
24 Downloadable Samples
Affymetrix Yeast Genome 2.0 Array (yeast2)
Description
The conserved Snf1/AMPK (AMP-activated protein Kinase) family is one of the central components in nutrient sensing and regulation of carbon metabolism in eukaryotes. It is also involved in several other processes such as stress resistance, invasive growth and ageing. Snf1 kinase is composed of a catalytic -subunit Snf1, a regulatory -subunit Snf4 and one of three possible -subunits, Sip1, Sip2 or Gal83. We used a systematic approach to study the role of the three -subunits by analyzing all 7 possible combinations of -subunit deletions together with the reference strain.
Publication Title
The beta-subunits of the Snf1 kinase in Saccharomyces cerevisiae, Gal83 and Sip2, but not Sip1, are redundant in glucose derepression and regulation of sterol biosynthesis.
Sample Metadata Fields
No sample metadata fields
View Samples- Homo sapiens
- 36 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
MicroRNA regulate immunological pathways in T-cells in immune thrombocytopenia (ITP).
Sample Metadata Fields
No sample metadata fields
View Samples- Homo sapiens
- 18 Downloadable Samples
Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
MicroRNA are small non-coding RNA molecules that regulate gene expression. To investigate the role of microRNA in ITP, we performed genome-wide expression analyses of mRNA and microRNA in T-cells from ITP patients and controls. We identified 1,915 regulated genes and 22 regulated microRNA that differed between ITP patients and controls. Seventeen of the 22 regulated microRNA were linked to changes in target gene expression; 57 of these target genes were associated with the immune system, e.g. T-cell activation and regulation of immunoglobulin production. CXCL13 and IL-21 were two microRNA target genes significantly increased in ITP. We could demonstrate increased plasma levels of CXCL13 and others have reported increased plasma levels of IL-21 in ITP. Thus, regulated microRNA were significantly associated with both gene and protein expression of molecules in immunological pathways. We suggest that microRNA may be important regulatory molecules involved in the loss of tolerance in ITP.
Publication Title
MicroRNA regulate immunological pathways in T-cells in immune thrombocytopenia (ITP).
Sample Metadata Fields
No sample metadata fields
View Samples- Saccharomyces cerevisiae
- 12 Downloadable Samples
- Affymetrix Yeast Genome 2.0 Array (yeast2)
Description
HMF and furfural were pulse added to xylose-utilizing Saccharomyces cerevisiae during either the glucose consumption phase or the xylose consumption phase. Transcriptome samples were collected before and one hour after pulsing of inhibitors.
Publication Title
Pulsed addition of HMF and furfural to batch-grown xylose-utilizing Saccharomyces cerevisiae results in different physiological responses in glucose and xylose consumption phase.
Sample Metadata Fields
Treatment
View Samples- Homo sapiens
- 29 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Time course micro array experiment to identify transcriptional changes in response to exposure of hFLs to different combinations of small molecules during direct neuronal reprogramming
Publication Title
Small molecules increase direct neural conversion of human fibroblasts.
Sample Metadata Fields
Specimen part, Treatment, Time
View Samples- Rattus norvegicus
- 28 Downloadable Samples
- Affymetrix Rat Gene 1.0 ST Array (ragene10st)
Description
Acute quadriplegic myopathy (AQM) or critical illness myopathy (CIM) is frequently observed in intensive care unit (ICU) patients. In order to elucidate duration-dependent effects of the ICU intervention on molecular and functional networks that control the muscle wasting and weakness in AQM, gene expression profile was analyzed at time points varying from 6 hours to 14 days in a unique experimental rat model mimicking ICU conditions, i.e., post-synaptically paralyzed, mechanically ventilated and extensively monitored animals.
Publication Title
Muscle wasting and the temporal gene expression pattern in a novel rat intensive care unit model.
Sample Metadata Fields
Sex, Specimen part, Disease, Disease stage
View Samples- Saccharomyces cerevisiae
- 6 Downloadable Samples
- Affymetrix Yeast Genome 2.0 Array (yeast2)
Description
When the yeast Saccharomyces cerevisiae is subjected to increasing glycolytic fluxes under aerobic conditions, there is a threshold value of the glucose uptake rate at which the metabolism shifts from being purely respiratory to mixed respiratory and fermentative. This shift is characterized by ethanol production, a phenomenon known as the Crabtree effect due to its analogy with lactate overflow in cancer cells. It is well known that at high glycolytic fluxes there is glucose repression of respiratory pathways resulting in a decrease in the respiratory capacity. Despite many years of detailed studies on this subject, it is not known whether the onset of the Crabtree effect (or overflow metabolism) is due to a limited respiratory capacity or caused by glucose-mediated repression of respiration. We addressed this issue by increasing respiration in S. cerevisiae by introducing a heterologous alternative oxidase, and observed reduced aerobic ethanol formation. In contrast, increasing non-respiratory NADH oxidation by overexpression of a water-forming NADH oxidase reduced aerobic glycerol formation. The metabolic response to elevated alternative oxidase occurred predominantly in the mitochondria, while NADH oxidase affected genes that catalyze cytosolic reactions. Moreover, NADH oxidase restored the deficiency of cytosolic NADH dehydrogenases in S. cerevisiae. These results indicate that NADH oxidase localizes in the cytosol, while alternative oxidase is directed to the mitochondria. The onset of aerobic ethanol formation is demonstrated to be a consequence of an imbalance in mitochondrial redox balancing. In addition to answering fundamental physiological questions, our findings are relevant for all biomass derived applications of S. cerevisiae.
Publication Title
Increasing NADH oxidation reduces overflow metabolism in Saccharomyces cerevisiae.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 123 Downloadable Samples
IlluminaHiSeq2500
Description
Single cell RNA seq and bioinformatic analysis is used to characterize myeloid differentiation to uncover novel transcriptional networks and key drivers of hematoipoietic development Overall design: Single cell RNA seq of different hematopoietic populations integrated with Chip seq involving multiple markers
Publication Title
Single-cell analysis of mixed-lineage states leading to a binary cell fate choice.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 85 Downloadable Samples
- IlluminaHiSeq2500
Description
Single cell RNA seq and bioinformatic analysis is used to characterize myeloid differentiation to uncover novel transcriptional networks and key drivers of hematoipoietic development Overall design: Single cell RNA seq of different hematopoietic populations integrated with Chip seq involving multiple markers
Publication Title
Single-cell analysis of mixed-lineage states leading to a binary cell fate choice.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 88 Downloadable Samples
- Illumina HiSeq 2500
Description
Single cell RNA seq and bioinformatic analysis is used to characterize myeloid differentiation to uncover novel transcriptional networks and key drivers of hematoipoietic development Overall design: Single cell RNA seq of different hematopoietic populations integrated with Chip seq involving multiple markers
Publication Title
Single-cell analysis of mixed-lineage states leading to a binary cell fate choice.
Sample Metadata Fields
No sample metadata fields
View Samples