One of the most important protein complexes involved in maintaining correct RNA levels in eukaryotic cells is the exosome, a complex consisting almost exclusively of exoribonucleolytic proteins. Since the identification of the exosome complex, seven years ago, much progress has been made in the characterization of its composition, structure and function in a variety of organisms. Although the exosome seems to accumulate in the nucleolus, it has been clearly established that it is also localized in cytoplasm and nucleoplasm. In accordance with its widespread intracellular distribution, the exosome has been implicated in a variety of RNA processing and degradation processes. Nevertheless, many questions still remain unanswered. What are the factors that regulate the activity of the exosome? How and where is the complex assembled? What are the differences in the composition of the nuclear and cytoplasmic exosome? What is the detailed structure of exosome subunits? What are the mechanisms by which the exosome is recruited to substrate RNAs? Here, we summarize the current knowledge on the composition and architecture of this complex, explain its role in both the production and degradation of various types of RNA molecules and discuss the implications of recent research developments that shed some light on the questions above and the mechanisms that are controlling the exosome.
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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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