We analyzed a cloned fragment of the yeast URA3 promoter region that contains a sequence of DNA capable of functioning as a highly efficient transcription terminator. BAL 31 deletions have shown the signal for the transcription termination activity is less than or equal to 110 base pairs and resides between bases 45 and 155 upstream of the URA3 primary ATG codon at base 227. In our in vivo assay system, the DNA fragment is able to terminate transcripts very efficiently in either orientation. The terminated transcripts bind to oligodeoxythymidylate cellulose columns and promote the synthesis of full-length cDNAs, suggesting that the transcripts are polyadenylated. The 110-base-pair region contains no sequence resembling terminator consensus sequences described by Zaret and Sherman (K.S. Zaret and F. Sherman, Cell, 28:563-573, 1982) or Henikoff and Cohen (S. Henikoff and E.H. Cohen, Mol. Cell. Biol., 4:1515-1520, 1984). We discuss the possible physiological relevance of this sequence to bona fide termination of transcription and to URA3 regulation in Saccharomyces cerevisiae.
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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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