The Rrs1 protein plays an essential role in the biogenesis of 60S ribosomal subunits in budding yeast (Saccharomyces cerevisiae). Here, we examined whether the fission yeast (Schizosaccharomyces pombe) homologue of Rrs1 also plays a role in ribosome biogenesis. To this end, we constructed two temperature-sensitive fission yeast strains, rrs1-D14/22G and rrs1-L51P, which had amino acid substitutions corresponding to those of the previously characterized budding yeast rrs1-84 (D22/30G) and rrs1-124 (L61P) strains, respectively. The fission yeast mutants exhibited severe defects in growth and 60S ribosomal subunit biogenesis at high temperatures. In addition, expression of the Rrs1 protein of fission yeast suppressed the growth defects of the budding yeast rrs1 mutants at high temperatures. Yeast two-hybrid analyses revealed that the interactions of Rrs1 with the Rfp2 and Ebp2 proteins were conserved in budding and fission yeasts. These results suggest that the essential function of Rrs1 in ribosome biogenesis may be conserved in budding and fission yeasts.
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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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