Yeast Rpl10 belongs to the L10e family of ribosomal proteins. In the large (60 S) subunit, Rpl10 is positioned in a cleft between the central protuberance and the GTPase-activating center. It is loaded into the 60 S subunit at a late step in maturation. We have shown previously that Rpl10 is required for the release of the Crm1-dependent nuclear export adapter Nmd3, an event that also requires the cytoplasmic GTPase Lsg1. Here we have carried out an extensive mutational analysis of Rpl10 to identify mutations that would allow us to map activities to distinct domains of the protein to begin to understand the molecular interaction between Rpl10 and Nmd3. We found that mutations in a central loop (amino acids 102-112) had a significant impact on the release of Nmd3. This loop is unstructured in the crystal and solution structures of prokaryotic Rpl10 orthologs. Thus, the loop is not necessary for stable interaction of Rpl10 with the ribosome, suggesting that it plays a dynamic role in ribosome function or regulating the association of other factors. We also found that mutant Rpl10 proteins were engineered to be unable to bind to the ribosome accumulated in the nucleus. This was unexpected and may suggest a nuclear role for Rpl10.
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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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