A yeast nuclear fraction of unknown composition, named TFIIIE, was reported previously to enhance transcription of tRNA and 5S rRNA genes in vitro. We show that TFIIIE activity co-purifies with a specific subset of ribosomal proteins (RPs) which, as revealed by chromatin immunoprecipitation analysis, generally interact with tRNA and 5S rRNA genes, but not with a Pol II-specific promoter. Only Rpl6Ap and Rpl6Bp, among the tested RPs, were found associated to a TATA-containing tRNA(Ile)(TAT) gene. The RPL6A gene also emerged as a strong multicopy suppressor of a conditional mutation in the basal transcription factor TFIIIC, while RPL26A and RPL14A behaved as weak suppressors. The data delineate a novel extra-ribosomal role for one or a few RPs which, by influencing 5S rRNA and tRNA synthesis, could play a key role in the coordinate regulation of the different sub-pathways required for ribosome biogenesis and functionality.
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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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