PUF proteins, a family of RNA-binding proteins, interact with the 3' untranslated regions (UTRs) of specific mRNAs to control their translation and stability. PUF protein action is commonly correlated with removal of the poly(A) tail of target mRNAs. Here, we focus on how PUF proteins enhance deadenylation and mRNA decay. We show that a yeast PUF protein physically binds Pop2p, which is a component of the Ccr4p-Pop2p-Not deadenylase complex, and that Pop2p is required for PUF repression activity. By binding Pop2p, the PUF protein simultaneously recruits the Ccr4p deadenylase and two other enzymes involved in mRNA regulation, Dcp1p and Dhh1p. We reconstitute regulated deadenylation in vitro and demonstrate that the PUF-Pop2p interaction is conserved in yeast, worms and humans. We suggest that the PUF-Pop2p interaction underlies regulated deadenylation, mRNA decay and repression by PUF proteins.
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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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