The effects on S.cerevisiae telomere binding protein Rap1p, telomerase and telomeric DNA by the lead (Pb), the selenium (Se) and Pb + Se were tested respectively in this study. Compared with the control S.cerevisiae after 100 gene rations, the mean telomere length shortened, Rap1p concentration was significantly lower and the secondary structure of Rap1p was disturbed, the telomerase activity was reduced in Pb treated cells. In Se treated cells, telomere length was significantly longer, and telomerase activity expressed higher. The concentration and secondary structure of Rap1p were similar to that of the control. Further more, the viability of Pb treated cells were significantly reduced while cells undergone other three treatments were similar and normal. These results suggest that Pb could damage Rap1p, reduce telomerase activity, resulting in the telomer length shortening and cell death. On the other hand, Se could protect and repair the damage in Rap1p and telomere caused by Pb to some extent.
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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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