Stable propagation of the yeast plasmid 2 microns requires an origin of replication, a cis-active locus designated REP3, and two plasmid-encoded proteins which are the products of the REP1 and REP2 genes. The three REP loci appear to constitute a partitioning system, ensuring equal distribution of plasmid molecules to mother and daughter cells after mitosis. We have localized the REP3 site completely within a segment of five-and-one-half direct tandem repeats of a 62-base-pair unit, bordered by HpaI and AvaI restriction sites within the large unique region of the 2 microns genome. In addition, we find that the repeated elements are functionally distinct. Only a subset of the repeats is necessary to promote full partitioning activity. The other repeats appear to promote plasmid transcription. These results are discussed in the context of a model of plasmid copy control involving titration of a plasmid-specific protein by the repeated elements within REP3.
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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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