The heterohexameric origin recognition complex (ORC) has been implicated in many cellular activities, including DNA replication, transcriptional control, heterochromatin assembly, centromere and telomere function, and so on. Here, we report a new function for ORC in mediating histone methylation. Using the yeast two-hybrid system, we identify a physical interaction between Orc2p and Spp1p, a member of the Set1 complex, and we demonstrate the interaction between the endogenous ORC and Spp1p by co-immunoprecipitation from yeast extracts. Furthermore, we find that Orc2p physically interacts with trimethylated histone 3 lysine 4 (H3K4) on chromatin by co-immunoprecipitation. Finally, we show that the trimethylation of H3K4 is decreased in orc2-1 cells and abolished in orc2-1, spp1Delta double mutants. Our data reveal a novel facet of ORC in mediating histone methylation in collaboration with Spp1p and demonstrate a connection between ORC and chromatin structure via the Set1 complex.
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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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