A mutant screen has been initiated to identify host genes important for the replication of retrotransposons in Saccharomyces cerevisiae. Two mutants were identified that undergo Ty1 and Ty3 transposition at <10% of the wild-type frequency. Both these mutants have deficiencies in the accumulation of full-length Ty1 and Ty3 cDNAs, although Ty proteins (including reverse transcriptase) accumulate at wild-type levels. The DBR1 gene, encoding the yeast debranching enzyme, complements both mutants. This suggests that Dbr1p is important for either reverse transcription or the stability of Ty cDNA, roles that have not been previously reported for this protein. The deficiency in accumulation of Ty cDNAs in dbr1 mutants is apparent when engineered Ty elements are expressed for short time periods (6-10 h) but is not apparent following long expression periods (>24 h).
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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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