Saccharomyces cerevisiae
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PROVIDER: PRJNA136299 | ENA |
REPOSITORIES: ENA
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Project description:Investigation of Saccharomyces cerevisiae phosphate metabolism. Cells starved for phosphate, cells grown with intermediate and high phosphate concentrations, and PHO4 mutant cells examined. Keywords: other
2003-08-29 | GSE603 | GEO
Project description:In this study, we determined the expression profiles of Pho4 and Cbf1 targeted genes in phosphate perturbation. Yeast S. cerevisiae in log phase was grown in PNB medium with no phosphate for 3 hours and then shift to various phosphate concentration (from 0 to 10 mM) for 80 minutes.
2011-07-31 | E-GEOD-26770 | biostudies-arrayexpress
Project description:Investigation of Saccharomyces cerevisiae phosphate metabolism. Cells starved for phosphate, cells grown with intermediate and high phosphate concentrations, and PHO4 mutant cells examined.
2010-06-05 | E-GEOD-603 | biostudies-arrayexpress
Project description:In this study, we determined the expression profiles of Pho4 and Cbf1 targeted genes in phosphate perturbation.
2011-08-01 | GSE26770 | GEO
Project description:In S. cerevisiae, the phosphate starvation (PHO) responsive transcription factors Pho4 and Pho2 are jointly required for induction of phosphate response genes and survival in phosphate starvation conditions. In the related human commensal and pathogen C. glabrata, Pho4 is required but Pho2 is dispensable for survival in phosphate-limited conditions and is only partially required for inducing the phosphate response genes. This reduced dependence on Pho2 evolved in C. glabrata and closely related species. Pho4 orthologs that are less dependent on Pho2 induce more genes when introduced into the S. cerevisiae background, and Pho4 in C. glabrata both binds to more sites and induces more genes with expanded functional roles compared to Pho4 in S. cerevisiae. We used RNA-seq to profile the transcriptome of wild type and mutants of Pho4 / Pho2, or Pho4 ortholog swap in S. cerevisiae, to identify genes induced by Pho4 or its orthologs in S. cerevisiae background.
2017-04-15 | GSE97799 | GEO
Project description:Nucleosome positioning under perturbation conditions in yeast
| PRJNA242410 | ENA
Project description:In S. cerevisiae, the phosphate starvation (PHO) responsive transcription factors Pho4 and Pho2 are jointly required for induction of phosphate response genes and survival in phosphate starvation conditions. In the related human commensal and pathogen C. glabrata, Pho4 is required but Pho2 is dispensable for survival in phosphate-limited conditions and is only partially required for inducing the phosphate response genes. This reduced dependence on Pho2 evolved in C. glabrata and closely related species. Pho4 orthologs that are less dependent on Pho2 induce more genes when introduced into the S. cerevisiae background, and Pho4 in C. glabrata both binds to more sites and induces more genes with expanded functional roles compared to Pho4 in S. cerevisiae. We used Biotin-assisted Chromatin-ImmunoPrecipitation followed by high-throughput sequencing (BioChIP-seq) to identify the binding locations of Pho4 from both S. cerevisiae and C. glabrata in the S. cerevisiae background lacking the negative regulator Pho80, and either with or without Pho2.
2017-04-15 | GSE97797 | GEO
Project description:In S. cerevisiae, the phosphate starvation (PHO) responsive transcription factors Pho4 and Pho2 are jointly required for induction of phosphate response genes and survival in phosphate starvation conditions. In the related human commensal and pathogen C. glabrata, Pho4 is required but Pho2 is dispensable for survival in phosphate-limited conditions and is only partially required for inducing the phosphate response genes. This reduced dependence on Pho2 evolved in C. glabrata and closely related species. Pho4 orthologs that are less dependent on Pho2 induce more genes when introduced into the S. cerevisiae background, and Pho4 in C. glabrata both binds to more sites and induces more genes with expanded functional roles compared to Pho4 in S. cerevisiae. We used Chromatin-ImmunoPrecipitation with exonucleas followed by high-throughput sequencing (BioChIP-seq) to identify the binding locations of Pho4 from both S. cerevisiae and C. glabrata in the S. cerevisiae background lacking the negative regulator Pho80, and either with or without Pho2.
2017-04-15 | GSE97798 | GEO
Project description:In S. cerevisiae, the phosphate starvation (PHO) responsive transcription factors Pho4 and Pho2 are jointly required for induction of phosphate response genes and survival in phosphate starvation conditions. In the related human commensal and pathogen C. glabrata, Pho4 is required but Pho2 is dispensable for survival in phosphate-limited conditions and is only partially required for inducing the phosphate response genes. This reduced dependence on Pho2 evolved in C. glabrata and closely related species. Pho4 orthologs that are less dependent on Pho2 induce more genes when introduced into the S. cerevisiae background, and Pho4 in C. glabrata both binds to more sites and induces more genes with expanded functional roles compared to Pho4 in S. cerevisiae. We used RNA-seq to profile the transcriptome of wild type and mutants of Pho4 / Pho2 in C. glabrata, to identify genes induced by Pho4.
2017-04-15 | GSE97800 | GEO
Project description:The transcription factor Pho4 plays a crucial role in the response to phosphate starvation in many fungi, and it has been linked to tolerance to alkalinization of the medium. The vast majority of fungi encode a single Pho4-encoding gene. However, the genome of the industrially relevant yeast Komagataella phaffii appears to encode two possible Pho4 proteins, namely PAS-chr1-1_0265 and PASchr2-1_0177, designated here PHO4(A) and PHO4(B), respectively, which have never been functionally characterized. Phenotypic analysis of single and double mutants suggests that Pho4(B) plays a major role in adaptation to Pi scarcity. The phenotypes of single mutants do not overlap, but the double mutant is sensitive to multiple types of stress, including alkaline pH. Transcriptomic analysis under Pi starvation confirms that Pho4(B) is crucial for the typical transcriptional response (induction of PHO5, PHO89, VTC1, etc.). However, under high pH stress, induction of many of these genes becomes also PHO4(A) dependent, at least in the short-time response. Notably, expression of both PHO4(A) and PHO4(B) allows growth of a S. cerevisiae pho4 deletion mutant in the absence of phosphate. These results suggest that both transcription factors are functional in K. phaffii, although their functions are only partially overlapping, that these genes can respond differently to diverse stimuli, and that together are a key component in the adaptation to a variety of stresses.
2026-07-24 | GSE310523 | GEO