Mitochondrial ATP synthase subunit 8 of the yeast Saccharomyces cerevisiae and of the filamentous fungus Aspergillus nidulans have the same length and similar structural motifs. However, the two proteins share only 50% identical residues, with the conserved residues being concentrated in the N- and C-terminal domains. We have investigated whether it is amino acid sequence or overall structural motifs that are required for subunit 8 function. PCR was used to construct a gene encoding A. nidulans subunit 8 fused to an N-terminal cleavable mitochondrial targeting sequence. Following expression in the nucleus of a yeast strain deficient in subunit 8, the chimaeric precursor targeted the subunit 8 protein back to the mitochondrion. The A. nidulans subunit 8 was found to be able to restore growth on non-fermentable substrate at 18 degrees C and 28 degrees C, but not at 36 degrees C. Given the sequence divergence between subunit 8 of A. nidulans and that of S. cerevisiae, this finding suggests that common structural motifs are important for subunit 8 function.
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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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