Mitophagy is essential for mitochondrial quality control, selectively removing damaged or superfluous mitochondria to maintain cellular health and metabolic homeostasis. While positive regulators of mitophagy are relatively well characterized, the mechanisms governing its downregulation remain less understood. In this study, we investigate the role of Saccharomyces cerevisiae Slm35-a protein previously involved in oxidative stress response-in the regulation of mitophagy. We discovered that Slm35 is a soluble mitochondrial matrix protein and functions as a novel negative regulator of mitophagy and the mitochondrial retrograde (RTG) signaling pathway. Our results show that Slm35 modulates mitophagy through the RTG pathway, independently of Atg32 proteolytic processing by Yme1 or mitochondrial membrane potential (MMP) dissipation. Notably, Slm35 is crucial for the dynamic regulation of the RTG pathway in mitophagy-inducing conditions. These findings highlight the importance of Slm35 in fine-tuning mitochondrial quality control in response to metabolic cues and suggest a critical role for dynamic RTG pathway regulation in mitophagy control.
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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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