A ribosomal DNA (rDNA) binding activity was previously characterized in fission yeast that recognized the upstream ribosomal RNA (rRNA) gene promoter in a sequence specific manner and which stimulated rRNA synthesis. It was found to share characteristics with Saccharomyces cerevisiae's Upstream Activating Factor (UAF), an RNA polymerase I (pol I) specific transcription stimulatory factor. Putative fission yeast homologs of the S.cerevisiae UAF subunits, Rrn5p and Rrn10p, were identified. The Schizosaccharomyces pombe rDNA binding activity/transcriptional stimulatory activity was found to co-fractionate with both SpRrn5h and SpRrn10h. Analysis of polypeptides interacting with SpRrn10h uncovered a 27 kDa polypeptide (Spp27) homologous to a SWI/SNF component (now known to be homologous to Uaf30p). The contributions of the S.pombe and S.cerevisiae upstream rDNA promoter domains were assessed in cross-species transcriptional assays. Furthermore, comparative genomic analysis revealed putative Rrn5p, Rrn10p, Rrn9p and p27 homologs in multiple non-vertebrates. The S.pombe rDNA binding activity is proposed to be an RNA pol I specific SWI/SNF type factor.
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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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