The regulatory mutations in Saccharomyces cerevisiae designated cargA + Oh, cargB + Oh, and durOh are alterations in the control regions of the respective structural genes. The alteration causing the cargA + Oh mutation has been shown to be an insertion of a Ty1 element in the 5' noncoding region of the CAR1 ( cargA ) locus. All three mutations cause overproduction of their corresponding gene products and belong to the ROAM family of mutations (Regulated Overproducing Allele responding to Mating signals) in yeast. The amount of overproduction in ROAM mutants is determined, at least in part, by signals that control mating functions in yeast. We report the identification of two genetic loci that regulate Oh mutant gene expression but that do not affect mating ability. These loci are defined by the recessive roc mutations ( ROAM mutation control) that reduce the amount of overproduction caused by the cargA + Oh, cargB + Oh, and durOh mutations. RNAs homologous to CAR1 ( cargA ), DUR1 ,2 and Ty1 DNA probes were analyzed by the Northern hybridization technique. In comparison with wild-type strains, cargA + Oh and durOh mutant strains grown on ammonia medium contain increased amounts of CAR1 and DUR1 ,2 RNA. This RNA overproduction is diminished in MATa/MAT alpha diploid strains as well as in haploid strains that also carry the ste7 mutation which prevents mating or that carry either of the roc1 or roc2 mutant alleles. The amount of RNA homologous to Ty1 DNA is also reduced in ste7 , roc1 , and roc2 mutant strains. This reduction is not observed in a strain with the ste5 mutation, which prevents mating but has no effect on overproduction of ROAM mutant gene products.(ABSTRACT TRUNCATED AT 250 WORDS)
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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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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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