Project description:Dataset aims to uncover beneficial mutations on yeast strains (CEN.PK 113-11D based) engineered for polyamine over-production. We observed substantial heterogeneity between colony sizes and polyamine titers obtained between parent and final strains. Further physiological characterization of re-streaked colonies confirmed this phenotype, meaning that the sudden heterogeneity is heritable. Sequencing data presented here is used for identification differences between these mutated and parental strains.
Project description:To detect the true expression patterns of diosgenin (DSG) synthetic genes after pathway engineering as well as investigate the impact of the DSG accumulation on the physiological state of yeast cells, a global analysis of the transcriptomes of DSG producing strains was performed using mRNA sequencing (RNA-Seq). DSG producing strains include LP085-Vc (DSG titer of 8.0 mg/L), LP104-17 (24.6 mg/L), and LP118 (31.4mg/L) were grown in SD media (2% w/v glucose) and cell samples of the 6h and 24h fermentation time points were collected for transcriptome analyses.
Project description:Study is aimed to understand translation regulation of mRNA in low and high polyamines in S. cerevisiae. mRNA seq and Ribosome profiling were performed in yeast cells, in duplicates, under low (0 spermidine) and high (10 µM) spermidine. Translation efficiency was calculated (low vs high SPD) and GO analysis reveals 23 transporters as the only class undergo TE downregulation in high SPD condition. Further, we investigated role of these 23 transporters in polyamine transport and identified HOL1 as the high affinity polyamine transporter. This study further show that HOL1 is under polyamine control of translation regulation through conserved fungal uORF MLLLPS*.
Project description:Metabolomic profiles were compiled from oak and wine yeast parents over three extraction times (batch). Included in this study are extraction controls.
Project description:ChIP-chip assays to measure the occupancy of histone H3 K36me3 over the yeast genome in wildtype, isw1 and chd1 yeast strains. ChIPs were done with K36me3 antibody (Ab 9050) in G1 arrested yeast cells.
Project description:This time course microarray experiment was performed on Saccharomyces cerevisiae to determine the global gene expression alterations due to 3-trifluoromethyl-4-nitrophenol (TFM) exposure over time. In this experiment, yeast grown in standard, glucose-containing media were treated with 0.05mM TFM over a four hour period.
Project description:Comparison between two commercial wine yeast strains (UCD522 and P29) differing in their production of H2S during wine fermentation.
Project description:Polyamines are absolutely required for cell growth and proliferation. While polyamine depletion results in reversible cell cycle arrest, the actual mechanism of growth inhibition is still obscure. This work aimed at determining the cellular processes affected by reduction in the intracellular polyamine levels In order to reveal the general transcriptional responses to polyamine depletion in mammalian cells, NIH3T3 mouse fibroblasts were treated with 1mM L-Difluoromethylornithine (DFMO), G1 cellular fractions were collected by sorting at 0,12, 24, 48 and 96 hours upon addition of the reagent, total RNA was extracted, reverse-transcribed, fragmented, labeled and hybridized to Affymetrix MoGene 1.0 ST DNA array.