An alternative transcriptome shapes cell fate transitions in yeast (TSS-seq)
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PROVIDER: PRJNA566359 | ENA |
REPOSITORIES: ENA
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Project description:Alternative mRNA isoforms and long noncoding RNAs (lncRNA) make up a large fraction of the transcriptome and play key functions in cell-fate programming. These transcripts often initiate upstream of coding gene promoters from alternative transcription start sites (TSS) where they can regulate gene expression in cis through transcription-coupled chromatin alterations. How, when and where transcription of alternative cis-acting RNAs regulates local gene expression remains poorly understood. Here, we use a high-resolution quantitative approach to study alternative TSS and transcript end site (TES) usage during three different cell fate transitions in yeast: entry into gametogenesis, commitment to meiotic divisions and return to vegetative growth. We propose that an alternative transcriptome of mRNA isoforms and lncRNAs shapes local gene expression during cell fate transitions. Hence, changes in the types and proportions of different RNAs transcribed at a locus are important inputs for gene expression at distinct stages of development.
2020-12-15 | GSE137707 | GEO
Project description:Alternative mRNA isoforms and long noncoding RNAs (lncRNA) make up a large fraction of the transcriptome and play key functions in cell-fate programming. These transcripts often initiate upstream of coding gene promoters from alternative transcription start sites (TSS) where they can regulate gene expression in cis through transcription-coupled chromatin alterations. How, when and where transcription of alternative cis-acting RNAs regulates local gene expression remains poorly understood. Here, we use a high-resolution quantitative approach to study alternative TSS and transcript end site (TES) usage during three different cell fate transitions in yeast: entry into gametogenesis, commitment to meiotic divisions and return to vegetative growth. We propose that an alternative transcriptome of mRNA isoforms and lncRNAs shapes local gene expression during cell fate transitions. Hence, changes in the types and proportions of different RNAs transcribed at a locus are important inputs for gene expression at distinct stages of development.
2020-12-15 | GSE141269 | GEO
Project description:Alternative mRNA isoforms and long noncoding RNAs (lncRNA) make up a large fraction of the transcriptome and play key functions in cell-fate programming. These transcripts often initiate upstream of coding gene promoters from alternative transcription start sites (TSS) where they can regulate gene expression in cis through transcription-coupled chromatin alterations. How, when and where transcription of alternative cis-acting RNAs regulates local gene expression remains poorly understood. Here, we use a high-resolution quantitative approach to study alternative TSS and transcript end site (TES) usage during three different cell fate transitions in yeast: entry into gametogenesis, commitment to meiotic divisions and return to vegetative growth. We propose that an alternative transcriptome of mRNA isoforms and lncRNAs shapes local gene expression during cell fate transitions. Hence, changes in the types and proportions of different RNAs transcribed at a locus are important inputs for gene expression at distinct stages of development.
2020-12-15 | GSE137709 | GEO
Project description:Alternative mRNA isoforms and long noncoding RNAs (lncRNA) make up a large fraction of the transcriptome and play key functions in cell-fate programming. These transcripts often initiate upstream of coding gene promoters from alternative transcription start sites (TSS) where they can regulate gene expression in cis through transcription-coupled chromatin alterations. How, when and where transcription of alternative cis-acting RNAs regulates local gene expression remains poorly understood. Here, we use a high-resolution quantitative approach to study alternative TSS and transcript end site (TES) usage during three different cell fate transitions in yeast: entry into gametogenesis, commitment to meiotic divisions and return to vegetative growth. We propose that an alternative transcriptome of mRNA isoforms and lncRNAs shapes local gene expression during cell fate transitions. Hence, changes in the types and proportions of different RNAs transcribed at a locus are important inputs for gene expression at distinct stages of development.
2020-12-15 | GSE137708 | GEO
Project description:Alternative mRNA isoforms and long noncoding RNAs (lncRNA) make up a large fraction of the transcriptome and play key functions in cell-fate programming. These transcripts often initiate upstream of coding gene promoters from alternative transcription start sites (TSS) where they can regulate gene expression in cis through transcription-coupled chromatin alterations. How, when and where transcription of alternative cis-acting RNAs regulates local gene expression remains poorly understood. Here, we use a high-resolution quantitative approach to study alternative TSS and transcript end site (TES) usage during three different cell fate transitions in yeast: entry into gametogenesis, commitment to meiotic divisions and return to vegetative growth. We propose that an alternative transcriptome of mRNA isoforms and lncRNAs shapes local gene expression during cell fate transitions. Hence, changes in the types and proportions of different RNAs transcribed at a locus are important inputs for gene expression at distinct stages of development.
2020-12-15 | GSE137706 | GEO
Project description:An alternative transcriptome shapes cell fate transitions in yeast (TES-seq)
| PRJNA566361 | ENA
Project description:An alternative transcriptome shapes cell fate transitions in yeast (mRNA-seq)
| PRJNA566360 | ENA
Project description:An alternative transcriptome shapes cell fate transitions in yeast (TIF-seq)
| PRJNA592981 | ENA
Project description:An alternative transcriptome shapes cell fate transitions in yeast (MNase-seq)
| PRJNA566362 | ENA
Project description:Cryptococcus neoformans is a life-threatening basidiomycete fungal pathogen responsible for meningoencephalitis in immunocompromised patients. This yeast can adapt to diverse habitats, efficiently produces virulence factors, and escapes immune surveillance. This implies intricate mechanisms underlying its gene regulation networks, which are yet to be comprehensively understood. Alternative transcription usage regulation has been identified as the major mean formeans of gene expression regulation in metazoans. However, in fungi, its impact remains elusive as its study has thus far been restricted to model yeasts. We Hhere we re-analysed transcription start site (TSS)-seq data to define genuine TSS clusters in two species of pathogenic Cryptococcus. We identified two types of TSS clusters associated with specific DNA sequence motifs. Our analysis also revealed that alternative TSS usage regulation in response to environmental cues is widespread in Cryptococcus, altering gene expression and protein targeting. Importantly, we performed a forward genetic screen to identify a unique transcription factor (TF) named Tur1, which regulates alternative TSS (aTSS) usage genome-wide when cells switch from exponential phase to stationary phase. Tur1 has been previously shown to be essential for virulence in C. neoformans. Accordingly, we demonstrated here that a tur1? mutant strain is more sensitive to superoxide stress and phagocytosed more efficiently by macrophages than the Wild-type (WT) strain.
2023-07-15 | GSE237320 | GEO