Previous attempts to study the binding of yeast ribosomal protein L1 with 5S rRNA in vitro have been impeded by the failure to form RNA-protein complexes with purified protein and RNA. To circumvent this difficulty, we have developed an in vitro system that allowed RNP formation. The system involved in vitro expression of the protein L1 from its cloned gene in the presence of exogenous yeast 5S rRNA. A protein of the expected size (34 kDa) was synthesized by in vitro transcription and translation. A specific 5S rRNA-protein L1 complex (RNP) was formed when the rRNA molecule was present during protein L1 synthesis. However, the full-length protein L1 failed to bind 5S rRNA. The extent of RNP formation was proportional to the concentration of the exogenous yeast 5S rRNA in the reaction. The RNP displayed properties identical to those isolated from mature 60S ribosome subunits. Addition of yeast 5.8S rRNA did not result in the formation of a specific RNP. Using this in vitro system, we examined the ability of several deletion mutant proteins to bind yeast 5S rRNA and concluded that protein L1 missing residues 261 to 295 from the C-terminus could not bind yeast 5S rRNA. This in vitro system should be useful for future studies on the molecular nature of 5S rRNA-protein L1 interaction.
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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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