Our study involves a transcriptomic approach to the analysis of industrial yeast metabolism. Historically, among the hundreds of yeast species, Saccharomyces cerevisiae has played an important role in scientific investigations and industrial applications, and it is universally acknowledged as one of the model systems for eukaryotic organisms. Yeast is also an important component of the wine fermentation process and determines various attributes of the final product.
Linking gene regulation and the exo-metabolome: a comparative transcriptomics approach to identify genes that impact on the production of volatile aroma compounds in yeast.
Time
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Control of daily transcript oscillations in Drosophila by light and the circadian clock.
No sample metadata fields
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Integration of light and temperature in the regulation of circadian gene expression in Drosophila.
No sample metadata fields
View SamplesCidofovir is an acyclic nucleoside phosphonate with strong antiviral activity against a broad spectrum of DNA viruses. Although it has previously been shown that cidofovir exerts an antiproliferative effect on HPV positive cells by the induction of apoptosis, the exact mechanism of action remains to be unraveled. In order to study the activity of cidofovir against HPV, gene expression profiling was performed in cidofovir-treated and cidofovir-resistant HeLa, HaCaT, and PHK cells by means of microarrays (HG-U133 Plus 2, Affymetrix).
Cidofovir selectivity is based on the different response of normal and cancer cells to DNA damage.
Specimen part, Disease, Cell line
View SamplesCircadian clocks are temporally aligned to the environment via signals, or Zeitgebers, such as daily light and temperature cycles, food availability, and social behavior. In this study, we show that genome-wide expression profiles from temperature-entrained flies show a dramatic difference in the presence or absence of a thermocycle. Whereas transcription appears to be modified globally by changes in temperature, there is a specific set of transcripts that continue to oscillate in constant conditions following temperature entrainment. These transcripts show a significant overlap with a previously defined set of transcripts oscillating in response to a photocycle. Further, these overlapping transcripts maintain the same mutual phase relationships after entrainment by temperature or light. Comparison of the collective temperature- and light-entrained circadian phases indicates that natural environmental light and temperature cycles cooperatively entrain the circadian clock. These findings suggest that a single transcriptional clock in the adult fly head is able to integrate information from both light and temperature.
Integration of light and temperature in the regulation of circadian gene expression in Drosophila.
No sample metadata fields
View SamplesCircadian clocks are temporally aligned to the environment via signals, or Zeitgebers, such as daily light and temperature cycles, food availability, and social behavior. In this study, we show that genome-wide expression profiles from temperature-entrained flies show a dramatic difference in the presence or absence of a thermocycle. Whereas transcription appears to be modified globally by changes in temperature, there is a specific set of transcripts that continue to oscillate in constant conditions following temperature entrainment. These transcripts show a significant overlap with a previously defined set of transcripts oscillating in response to a photocycle. Further, these overlapping transcripts maintain the same mutual phase relationships after entrainment by temperature or light. Comparison of the collective temperature- and light-entrained circadian phases indicates that natural environmental light and temperature cycles cooperatively entrain the circadian clock. These findings suggest that a single transcriptional clock in the adult fly head is able to integrate information from both light and temperature.
Integration of light and temperature in the regulation of circadian gene expression in Drosophila.
No sample metadata fields
View SamplesCircadian clocks are temporally aligned to the environment via signals, or Zeitgebers, such as daily light and temperature cycles, food availability, and social behavior. In this study, we show that genome-wide expression profiles from temperature-entrained flies show a dramatic difference in the presence or absence of a thermocycle. Whereas transcription appears to be modified globally by changes in temperature, there is a specific set of transcripts that continue to oscillate in constant conditions following temperature entrainment. These transcripts show a significant overlap with a previously defined set of transcripts oscillating in response to a photocycle. Further, these overlapping transcripts maintain the same mutual phase relationships after entrainment by temperature or light. Comparison of the collective temperature- and light-entrained circadian phases indicates that natural environmental light and temperature cycles cooperatively entrain the circadian clock. These findings suggest that a single transcriptional clock in the adult fly head is able to integrate information from both light and temperature.
Integration of light and temperature in the regulation of circadian gene expression in Drosophila.
No sample metadata fields
View SamplesCircadian clocks are temporally aligned to the environment via signals, or Zeitgebers, such as daily light and temperature cycles, food availability, and social behavior. In this study, we show that genome-wide expression profiles from temperature-entrained flies show a dramatic difference in the presence or absence of a thermocycle. Whereas transcription appears to be modified globally by changes in temperature, there is a specific set of transcripts that continue to oscillate in constant conditions following temperature entrainment. These transcripts show a significant overlap with a previously defined set of transcripts oscillating in response to a photocycle. Further, these overlapping transcripts maintain the same mutual phase relationships after entrainment by temperature or light. Comparison of the collective temperature- and light-entrained circadian phases indicates that natural environmental light and temperature cycles cooperatively entrain the circadian clock. These findings suggest that a single transcriptional clock in the adult fly head is able to integrate information from both light and temperature.
Integration of light and temperature in the regulation of circadian gene expression in Drosophila.
No sample metadata fields
View SamplesRNAseq analysis on protocol biopsies obtained from 42 kidney transplant recipients at 4 time points after kidney transplantation. Overall design: Protocol biopsies obtained before reperfusion, after reperfusion, 3 months and 12 months after kidney transplantation.
Transcriptional trajectories of human kidney injury progression.
Subject, Time
View SamplesIn mammals body temperature fluctuates diurnally around a mean value of 36-37°C. Despite the small differences between minimal and maximal values, body temperature rhythms can drive robust cycles in gene expression in cultured cells and, likely, in, animals. Here we studied the mechanisms responsible for the temperature-dependent expression of Cold- Inducible RNA-Binding Protein (CIRBP). In NIH3T3 fibroblasts exposed to simulated mouse body temperature cycles Cirbp mRNA oscillates about 3-fold in abundance, as it does in mouse liver. This daily mRNA accumulation cycle is directly controlled by temperature oscillations and does not depend on the cells’ circadian clocks. Here, we show that the temperature-dependent accumulation of Cirbp mRNA is controlled primarily by the regulation of splicing efficiency, defined as the fraction of Cirbp pre-mRNA processed into mature mRNA. As revealed by genome-wide “approach-to-steady-kinetics”, this posttranscriptional mechanism is wide-spread in the temperature-dependent control of gene expression. Overall design: Cultured NIH3T3 cells seeded and kept at 37C degree for 4 hours before being switched to 33C and 38C. After 16 hours of incubation the temperature was shifted to 38C and 33C, respectively. Sample were then taken at 0, 1, 3, 6 and 9 hour after the temperature shift. Paired-end, strand-specific, total RNA-seq was performed over the samples at the respective time points using the Illumina HiSeq2500 platform.
Temperature regulates splicing efficiency of the cold-inducible RNA-binding protein gene Cirbp.
Specimen part, Subject, Time
View Samples