The origin recognition complex (ORC) is a six protein assembly that binds S. cerevisiae origins of replication and directs DNA replication throughout the genome and transcriptional silencing at the yeast mating-type loci. Here we report the cloning of the genes encoding the 120 kDa (ORC1), 62 kDa (ORC3), and 56 kDa (ORC4) subunits of ORC and the reconstitution of the complete complex after expression of all six subunits in insect cells. Orc1p is related to Cdc6p and Cdc18p, which regulate DNA replication and mitosis, and to Sir3p, a regulator of transcriptional silencing. The N-terminal region of Orc1p is highly related to Sir3p, and studies of Orc1p/Sir3p chimeric proteins indicate that this domain is dedicated to the transcriptional silencing function of ORC.
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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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