By recessive mutations, we have identified five genes, TYE1-TYE5, that are required for Ty-mediated expression of ADH2. These tye mutations not only suppress transcription of ADH2 when associated with a Ty element but are also defective in transcription of all Ty1 and Ty2 elements. Moreover, some of these mutations cause growth defects on non-fermentable carbon sources as well as sporulation defects. tye mutations also strongly suppress ADH2 expression when controlled by a polyA/T insertion mutation. Genetic analysis revealed that genes TYE3 and TYE4 are allelic to the previously identified genes SNF2 and SNF5 which code for transcription factors. These findings suggest that TYE gene products influence transcription of many genes rather than specifically Ty and Ty-mediated transcription. We have also found that null alleles of certain STE genes (ste7, ste11 and ste12), known to affect cell-type specific gene expression and expression of some Ty-adjacent genes, have a clear effect on Ty-controlled ADH2 expression depending on the carbon source. On the basis of ADH2 transcript levels in glucose-grown cells, all three ste alleles cause of five-fold reduction of ADH2 expression/transcription. In ethanol-grown cells, ste11 and ste12 mutations caused an almost complete loss of Ty-mediated ADH2 activation while ste7 has only a rather moderate effect. Surprisingly, ste11 and ste12 mutations lead to a significant increase in total Ty transcript levels. This would indicate that the STE12 protein, which is known to bind specifically to Ty1 sequences and thereby serve as an activator of a Ty-adjacent gene, can negatively modulate Ty transcription.(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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