Iron-sulfur (Fe/S) cluster-containing proteins catalyse a number of electron transfer and metabolic reactions. Little is known about the biogenesis of Fe/S clusters in the eukaryotic cell. Here, we demonstrate that mitochondria perform an essential role in the synthesis of both intra- and extra-mitochondrial Fe/S proteins. Nfs1p represents the yeast orthologue of the bacterial cysteine desulfurase NifS that initiates biogenesis by producing elemental sulfur. The matrix-localized protein is required for synthesis of both mitochondrial and cytosolic Fe/S proteins. The ATP-binding cassette (ABC) transporter Atm1p of the mitochondrial inner membrane performs an essential function only in the generation of cytosolic Fe/S proteins by mediating export of Fe/S cluster precursors synthesized by Nfs1p and other mitochondrial proteins. Assembly of cellular Fe/S clusters constitutes an indispensable biosynthetic task of mitochondria with potential relevance for an iron-storage disease and the control of cellular iron uptake.
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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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