Yeast iso-1-cytochrome c is one of the least stable mitochondrial cytochromes c. We have used a coordinated approach, combining the known functional and structural properties of cytochromes c, to engineer mutations into yeast iso-1-cytochrome c with the goal of selectively increasing the stability of the protein. The two redox forms of the native protein and six different mutant forms of yeast iso-1-cytochrome c were analyzed by differential scanning calorimetry (DSC). The relative stability, expressed as the difference in the Gibb's free energy of denaturation at a given temperature between the native and mutant forms (DeltaDeltaG(Tref)), was determined for each of the proteins. In both oxidation states, the mutant proteins C102T, T69E/C102T, T96A/C102T, and T69E/T96A/C102T were more stable than the wild-type protein, respectively. The increased stability of the mutant proteins is proposed to be due to the removal of a rare surface cysteine and the stabilization of two distorted alpha-helices.
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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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