It has been shown by several groups that ribosome can assist folding of denatured protein in vitro and the process is conserved across the species. Domain V of large ribosomal rRNA which occupies the intersubunit side of the large subunit was identified as the key player responsible for chaperoning the folding process. Thus, it is conceivable that denatured protein needs to access the intersubunit space of the ribosome in order to get folded. In this study, we have investigated the mechanism of release of the protein from the eukaryotic ribosome following reactivation. We have observed significant splitting of yeast 80S ribosome when incubated with the denatured BCAII protein. Energy-free disassembly mechanism functions in low Mg(+2) ion concentration for prokaryotic ribosomes. Eukaryotic ribosomes do not show significant splitting even at low Mg(+2) ion concentration. In this respect, denatured protein-induced disassembly of eukaryotic ribosome without the involvement of any external energy source is intriguing. For prokaryotic ribosomes, it was reported that the denatured protein induces ribosome splitting into subunits in order to access domain V-rRNA. In contrast, our results suggest an alternative mechanism for eukaryotic ribosomal rRNA-mediated protein folding and subsequent separation of the subunits by which release of the activated-protein occurs.
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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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