nm23-h1 is a well-documented metastasis suppressor gene whose mechanism(s) of action have yet to be fully elucidated. The purpose of this report is to discuss recent advances in investigating the potential role of a novel 3'-5' exonuclease activity identified recently in our laboratory, a biochemical function associated, in general, with DNA repair and replication. We have employed a site-directed mutagenesis approach to demonstrate that the 3'-5' exonuclease activity of NM23-H1 is required for its metastasis suppressor function. Consistent with a role in DNA repair, we also observe that the single yeast NM23 homolog (YNK1) is required for the maintenance of genomic integrity and normal kinetics of DNA repair in response to exposure to ultraviolet radiation. These results and their implications for understanding the molecular mechanisms underlying NM23-H1 functions in cancer are discussed.
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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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