The SNF2, SNF5, and SNF6 genes of Saccharomyces cerevisiae are required for expression of a variety of differently regulated genes. Previous evidence implicated the SNF5 protein in transcriptional activation, and a DNA-bound LexA-SNF5 fusion protein was shown to activate expression of a nearby promoter. Here, we examine the functional relationship of the SNF2, SNF5, and SNF6 proteins. Activation by DNA-bound LexA-SNF5 fusion protein was greatly reduced in snf2 and snf6 mutants, indicating that activation by LexA-SNF5 requires SNF2 and SNF6 function. An spt6 mutation, which suppresses transcriptional defects caused by snf2, restored activation by LexA-SNF5 in a snf2 mutant. The SNF2 gene was sequenced and encodes a 194-kDa protein that is targeted to the nucleus. DNA-bound LexA-SNF2 fusion protein also activated transcription, dependent on SNF5 and SNF6. These findings suggest that SNF2, SNF5, and SNF6 function interdependently in transcriptional activation, possibly forming a heteromeric complex.
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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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