Copper, zinc superoxide dismutase (SOD1 gene product) (superoxide:superoxide oxidoreductase, EC 1.15.1.1) is a copper-containing enzyme that functions to prevent oxygen toxicity. In the yeast Saccharomyces cerevisiae, copper levels exert some control over the level of SOD1 expression. We show that the ACE1 transcriptional activator protein, which is responsible for the induction of yeast metallothionein (CUP1) in response to copper, also controls the SOD1 response to copper. A single binding site for ACE1 is present in the SOD1 promoter region, as demonstrated by DNase I protection and methylation interference experiments, and is highly homologous to a high-affinity ACE1 binding site in the CUP1 promoter. The functional importance of this DNA-protein interaction is demonstrated by the facts that (i) copper induction of SOD1 mRNA does not occur in a strain lacking ACE1 and (ii) it does not occur in a strain containing a genetically engineered SOD1 promoter that lacks a functional ACE1 binding site.
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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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