Modulating the rate of mRNA degradation is a fast and efficient way to control gene expression. In a yeast strain deleted of EDC3, a component of the decapping machinery conserved in eukaryotes, the transcript coding the ribosomal protein Rps28b is specifically stabilized, as demonstrated by microarray and time course experiments. This stabilization results from the loss of RPS28B autoregulation, which occurs at the level of mRNA decay. Using mutants of the major deadenylase, we show that this regulation occurs at the level of decapping and bypasses deadenylation. Rps28b interacts with a conserved hairpin structure within the 3'UTR of its own mRNA and with components of the decapping machinery, including Edc3. We conclude that Rps28b, in the presence of Edc3, directly recruits the decapping machinery on its own mRNA. These findings show that specific modulation of the decapping efficiency on natural transcripts can control mRNA turnover.
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| Evidence ID | Analyze ID | Gene/Complex | Systematic Name/Complex Accession | Qualifier | Gene Ontology Term ID | Gene Ontology Term | Aspect | Annotation Extension | Evidence | Method | Source | Assigned On | Reference |
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| Evidence ID | Analyze ID | Gene | Gene Systematic Name | Phenotype | Experiment Type | Experiment Type Category | Mutant Information | Strain Background | Chemical | Details | Reference |
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| Evidence ID | Analyze ID | Gene | Gene Systematic Name | Disease Ontology Term | Disease Ontology Term ID | Qualifier | Evidence | Method | Source | Assigned On | Reference |
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| Evidence ID | Analyze ID | Regulator | Regulator Systematic Name | Target | Target Systematic Name | Direction | Regulation of | Happens During | Regulator Type | Direction | Regulation Of | Happens During | Method | Evidence | Strain Background | Reference |
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| Site | Modification | Modifier | Source | Reference |
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| Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Allele | Assay | Annotation | Action | Phenotype | SGA score | P-value | Source | Reference | Note |
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| Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Assay | Annotation | Action | Modification | Source | Reference | Note |
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| Complement ID | Locus ID | Gene | Species | Gene ID | Strain background | Direction | Details | Source | Reference |
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| Evidence ID | Analyze ID | Dataset | Description | Keywords | Number of Conditions | Reference |
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| Evidence ID | Analyze ID | File | Description |
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