ASH1 encodes a protein that is localized specifically to the daughter cell nucleus, where it has been proposed to repress transcription of the HO gene. Using Ash1p purified from baculovirus-infected insect cells, we have shown that Ash1p binds specific DNA sequences in the HO promoter. DNase I protection analyses showed that Ash1p recognizes a consensus sequence, YTGAT. Mutation of this consensus abolishes Ash1p DNA binding in vitro. We have shown that Ash1p requires an intact zinc-binding domain in its C terminus for repression of HO in vivo and that this domain may be involved in DNA binding. A heterologous DNA-binding domain fused to an N-terminal segment of Ash1p functions as an active repressor of transcription. Our studies indicate that Ash1p is a DNA-binding protein of the GATA family with a separable transcriptional repression domain.
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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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