Exosome-like protein complexes are essential 3'−>5' ribonucleases involved in processing and degradation of many RNAs. They are conserved in the three domains of life and share a common architecture comprised of a ring-like core structure organized around a central channel. RNA degradation by bacterial and archaeal exosome-like complexes requires threading through this single-stranded RNA specific channel to reach the phosphorolytic active sites buried deep within the barrel-shaped complex. In contrast most eukaryotic exosomes appear to have lost phosphorolytic activity and instead rely on hydrolytic RNases for catalytic activity raising the question of the degree of conservation of RNA recruitment mechanisms between prokaryotic and eukaryotic complexes. Recent single particle electron microscopy reconstructions of apo and RNA bound yeast exosomes provide the first direct structural evidence for a channeling mechanism by a eukaryotic exosome suggesting that this mechanism is conserved between all exosome-like complexes.
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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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