Project description:To understand the gene expression in Saccharomyces cerevisiae under fermentative and respiraotry conditions, we perfomred the genome-wide gene expression profiling for the log-phase cells of S. cerevisiae wild type, sef1 deletion, and hyperactive SEF1-VP16 mutants under the YPD and YPGly conditions.
Project description:In this study, we constructed three isogenic strains of S96 yrr1Δ background (its native YRR1 gene was knocked out) carrying three different YRR1 alleles, YRR1_S96, YRR1_YJM789, YRR1_S96-I775E, respectively. We then conducted chromatin immuno-precipitation followed by high-throughput sequencing (ChIP-Seq) for Yrr1 protein on the three strains grown in Yeast Peptone Dextrose medium (YPD) and YPD + 4NQO.
Project description:When using YPM media, the carotenoid yield was increased 10-fold compared to using the YPD media. To elucidate the hidden mechanism, the transcriptome analysis was performed and showed that 464 genes changed significantly in YPM media. Furthermore, inspired by the differential gene expression analysis which indicated that ADY2, HES1, and CUP1 showed the most remarkable changes, we found that the improvement of carotenoid accumulation in YPM media was mainly due to the copper, since supplementation of 80 µM CuSO4 in YPD media could increase carotenoid yield 9.2-fold
Project description:Two methods were used to induce petites from S, cerevisiae wild type strain MK288:.(1) MK288 was spread on YPD plate supplemented with 8 μg/ml fluconazole (2) MK288 was grown in YPD broth supplemented with 25 μg/ml ethidium bromide. Transcriptomes of the petites (TJ140 and TJ235) were compared to the wild type.
Project description:We used RNA-Seq to measure transcript abundance in 15 Saccharomyces cerevisiae strains from a diverse range of genetic lineages when growing in rich media (YPD) to characterize differential expression across strains.
Project description:In this study, we constructed three isogenic strains of S96 yrr1Î background (its native YRR1 gene was knocked out) carrying three different YRR1 alleles, YRR1_S96, YRR1_YJM789, YRR1_S96-I775E, respectively. We then conducted chromatin immuno-precipitation followed by high-throughput sequencing (ChIP-Seq) for Yrr1 protein on the three strains grown in Yeast Peptone Dextrose medium (YPD) and YPD + 4NQO. ChIP-Seq for Yrr1 protein was performed in biological triplicates on S96 cells carrying three different YRR1 alleles grown in YPD and YPD + 4NQO. Immune-precipitated DNA were sequenced for all the three cultures and input genomic DNA was sequenced for one culture.
Project description:Extensive transcriptional heterogeneity revealed by isoform profiling Application of TIF-Seq (Transcript IsoForm Sequencing) to S.cerevisiae. The method was applied to simultaneously identify the 5' capped mRNA transcription start site and the 3' polyadenylation site in different conditions: WT cells grown in glucose media [ypd, 2 biological replicates (bio) and 3 independent library preparations, technical replicates(lib)], WT cells grown in galactose media [ypgal, 4 biological replicates (bio) and 3 independent library preparations, technical replicates(lib)]. A modified protocol designed to enrich in long mRNA molecules was performed for WT cells grown in glucose media [ypd, 2 biological replicates (bio)] and in galactose media [ypgal, 2 biological replicates (bio)] conditions. Finally, control samples performed with a modified protocol designed to identify non-capped but polyadenylated molecules was performed in WT cells grown both in glucose (nypd) and galactose (nypgal) media.
