Junction-resolving enzymes exhibit structure-selective binding to DNA, but may also manipulate the DNA structure. CCE1 is a junction-resolving enzyme found in the yeast mitochondrion. To facilitate the analysis of the CCE1-junction interaction, we have exploited the sequence dependence of the cleavage reaction to devise a junction that is refractory to cleavage by this enzyme, even in the presence of magnesium ions. On binding to four-way DNA junctions, pure recombinant CCE1 opens the global structure into a 4-fold symmetrical configuration of arms with an open, chemically reactive centre. The structure of the CCE1-junction complex is independent of the sequence of the junction, and of the presence or absence of magnesium or other ions. This and other functional properties of CCE1 are strikingly similar to those of RuvC resolving enzyme of Escherichia coli.
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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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