Project description:Expression profiles of 110 the central metabolism-related enzymes were obtained by the selected reaction monitoring (SRM) assay methods using LC-MS/MS from the wild type (BY4742), a GCR2 gene deletion strain, and 29 single-gene deletion strains lacking enzyme genes responsible for central carbon metabolism (including CIT1, ENO1, FBP1, GCR2, GND1, GPD1, GPM2, HOR2, HXK1, HXK2, IDH1, IDH2, IDP1, LPD1, MAE1, MDH1, MDH2, PDA1, PDC1, PFK1, PYC2, RPE1, TAL1, TDH1, TDH2, TDH3, TKL1, TPS1, TPS2, and ZWF1 genes).
The central carbon metabolism is strictly controlled by modulation of enzyme expressions to maintain an essential system of living organisms. In this study, metabolic safety mechanisms in the model organism, Saccharomyces cerevisiae, were investigated by direct determination of enzyme expression levels. Targeted proteome analysis of 31 S. cerevisiae wild type and mutant strains revealed that at least 30% of the observed variations in enzyme expression levels could be explained by global regulatory mechanisms. Co-expression analysis revealed that expression levels of enzymes involved in trehalose metabolism and glycolysis changed in a coordinated manner under the control of the transcription factors for global regulation.
Project description:This dataset consists of 700 responsive mutants (four or more significant mRNA expression changes as a result of the deletion) from a gene expression profile compendium of 1,484 deletion mutants that have a role or are implicated in mRNA transcription regulation, mRNA turnover, signaling or are located in the nucleus.
Project description:This dataset consists of 784 non-responsive mutants (three or less significant mRNA expression changes as a result of the deletion) from a gene expression profile compendium of 1,484 deletion mutants that have a role or are implicated in mRNA transcription regulation, mRNA turnover, signaling or are located in the nucleus.
Project description:This dataset consists of 700 responsive mutants (four or more significant mRNA expression changes as a result of the deletion) from a gene expression profile compendium of 1,484 deletion mutants that have a role or are implicated in mRNA transcription regulation, mRNA turnover, signaling or are located in the nucleus. Two channel microarrays were used. RNA isolated from a large amount of wt yeast from a single culture was used as a common reference. This common reference was used in one of the channels for each hybridization and used in the statistical analysis to obtain an average expression-profile for each deletion mutant relative to the wt. Two independent cultures were hybridized on two separate microarrays. For the first hybridization the Cy5 (red) labeled cRNA from the deletion mutant is hybridized together with the Cy3 (green) labeled cRNA from the common reference. For the replicate hybridization, the labels are swapped. Each gene is represented twice on the microarray, resulting in four measurements per mutant. Using the Erlenmeyer growth protocol up to five deletion strains were grown on a single day. In the tecan platereader, up to eleven deletion strains could be grown on a single day. Wt cultures were grown parallel to the deletion mutants to assess day-to-day variance.
Project description:This dataset consists of 784 non-responsive mutants (three or less significant mRNA expression changes as a result of the deletion) from a gene expression profile compendium of 1,484 deletion mutants that have a role or are implicated in mRNA transcription regulation, mRNA turnover, signaling or are located in the nucleus. Two channel microarrays were used. RNA isolated from a large amount of wt yeast from a single culture was used as a common reference. This common reference was used in one of the channels for each hybridization and used in the statistical analysis to obtain an average expression-profile for each deletion mutant relative to the wt. Two independent cultures were hybridized on two separate microarrays. For the first hybridization the Cy5 (red) labeled cRNA from the deletion mutant is hybridized together with the Cy3 (green) labeled cRNA from the common reference. For the replicate hybridization, the labels are swapped. Each gene is represented twice on the microarray, resulting in four measurements per mutant. Using the Erlenmeyer growth protocol up to five deletion strains were grown on a single day. In the tecan platereader, up to eleven deletion strains could be grown on a single day. Wt cultures were grown parallel to the deletion mutants to assess day-to-day variance.
Project description:The protein profiles of both the dnaK deletion mutant and the wild-type strain were analyzed using proteomic analysis. The dnaK deletion mutant was analyzed three times and the wild-type strain was also analyzed three times.
