Servant G, et al. (2008) Remodeling yeast gene transcription by activating the Ty1 long terminal repeat retrotransposon under severe adenine deficiency. Mol Cell Biol 28(17):5543-54
Abstract: The Ty1 LTR-retrotransposon of S. cerevisiae is a powerful model to understand the activation of transposable elements by stress and their impact on genome expression. We previously discovered that Ty1 transcription is activated under conditions of severe adenine starvation. The mechanism of activation is independent of the Bas1 transcriptional activator of the de novo AMP biosynthesis pathway and probably involves chromatin remodeling at the Ty1 promoter. Here, we show that the 5'LTR has a weak transcriptional activity and is sufficient for the activation by severe adenine starvation. Furthermore, we demonstrate that Ty1 insertions that bring Ty1 promoter sequences into the vicinity of a reporter gene confer adenine starvation regulation on it. We provide evidence that similar co-activation of genes adjacent to Ty1 sequences occurs naturally in the yeast genome, indicating that Ty1 insertions can mediate transcriptional control of yeast gene expression under conditions of severe adenine starvation. Finally, the transcription pattern of genes adjacent to Ty1 insertions suggests that severe adenine starvation facilitates the initiation of transcription at alternative sites, partly located in the 5' LTR. We propose that Ty1-driven transcription of coding and non-coding sequences could regulate yeast gene expression in response to stress.
| Status: Published | Type: Journal Article | PubMed ID: 18591253 |
Topics addressed in this paper
Number of different genes curated to this paper: 34
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| Topics | Genes linked to topics (#1 - 10 ) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| BAS1 | ESF1 | SNF2 | YARCTy1-1 | YBLWTy1-1 | YBRWTy1-2 | YDRCTy1-1 | YDRCTy1-2 | YDRCTy1-3 | YDRWTy1-4 | |
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| Genetic Interactions | | | | | | | | | | |
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| Regulation of | | |||||||||
| Regulatory Role | | | | | | | | | | |
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| Transcription | | |||||||||
| Topics | Genes linked to topics (#11 - 20 ) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| YDRWTy1-5 | YERCTy1-1 | YERCTy1-2 | YGRCTy1-2 | YGRCTy1-3 | YGRWTy1-1 | YHRCTy1-1 | YJRWTy1-1 | YJRWTy1-2 | YLRCTy1-1 | |
| Additional Literature | | | | | | | | | | |
| DNA/RNA Sequence Features | | | | | | | | | | |
| Genetic Interactions | | | | | | | | | | |
| Regulatory Role | | | | | | | | | | |
| Strains/Constructs | | | | | | | | | | |
| Topics | Genes linked to topics (#21 - 30 ) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| YLRWTy1-2 | YLRWTy1-3 | YMLWTy1-1 | YMLWTy1-2 | YMRCTy1-3 | YMRCTy1-4 | YNLCTy1-1 | YNLWTy1-2 | YOLWTy1-1 | YORWTy1-2 | |
| Additional Literature | | | | | | | | | | |
| DNA/RNA Sequence Features | | | | | | | | | | |
| Genetic Interactions | | | | | | | | | | |
| Regulatory Role | | | | | | | | | | |
| Strains/Constructs | | | | | | | | | | |
- To find other papers on a gene and topic, click on the colored ball in the appropriate box.
- displays other papers with information about that topic for that gene.
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The topic is addressed in these papers but does not describe a specific gene or chromosomal feature.
- To go to the Locus page for a gene, click on the gene name.
| Topics | Genes linked to topics (#31 - 34 ) | |||
|---|---|---|---|---|
| YPLWTy1-1 | YPRCTy1-2 | YPRCTy1-4 | YPRWTy1-3 | |
| Additional Literature | | | | |
| DNA/RNA Sequence Features | | | | |
| Genetic Interactions | | | | |
| Regulatory Role | | | | |
| Strains/Constructs | | | | |




