Cellular aging is associated with the damage to DNA, decline in proteasome activity, loss of histones and alteration of epigenetic marks. The atypical proteasome with the activator PA200 in mammals or its ortholog Blm10 in yeast promotes the acetylation-dependent degradation of the core histones during DNA repair or spermiogenesis. We show here that loss of PA200 or Blm10 is the leading cause of the decline in proteasome activity during aging, the latter of which conversely induces the transcription of Blm10. The transcription factor Crt1 suppressed, but the proteasome subunit Rpn4 promoted, the transcription of Blm10. On the contrary to deletion of Rpn4, deletion of Crt1 elevated Blm10 transcription upon DNA damage, reduced core histone levels during aging, and prolonged replicative lifespan. These results suggest that cells can antagonize aging by up-regulating transcription of Blm10, providing important insights into the mechanisms of aging and the aging-related diseases.
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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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| Evidence ID | Analyze ID | File | Description |
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