The PIM1 nuclear gene in the yeast Saccharomyces cerevisiae encodes a mitochondrial ATP-dependent protease that exhibits over 30% identity with ATP-dependent protease La from Escherichia coli, Lon from Bacillus brevis, and one from Myxococcus xanthus. In addition, Pim1 is 1133 amino acids long and has a putative mitochondrial import signal in the N-terminal region. Enzymatic comparisons of normal PIM1+ and deficient pim1-delta strains revealed that the ATP-dependent protease is located within the mitochondrial matrix. The pim1-delta strains are unable to utilize nonfermentable substrates as the sole carbon source and are unable to maintain functional mitochondrial DNA, indicating that the Pim1 protease is required for mitochondrial function. PIM1 mRNA is constitutively expressed but is increased after thermal stress, suggesting that Pim1 may play a role in the heat shock response.
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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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