Cytochromes c are heme proteins that require multiple maturation components, such as heme lyases, for cofactor incorporation. Saccharomyces cerevisiae has two heme lyases that are specific for apocytochromes c (CCHL) or c(1) (CC(1)HL). CCHL can covalently attach heme b groups to apocytochrome c substrates of eukaryotic but not prokaryotic origin. Besides their conserved Cys-Xxx-Xxx-Cys-His heme-binding motifs, the amino-terminal regions of apocytochrome c substrates appear to be important for CCHL function. In this study, we show for the first time that only two amino acid changes in the amino-terminal region of the non-CCHL substrate apocytochrome c(2) from Rhodobacter capsulatus are necessary and sufficient for efficient holocytochrome c formation by CCHL. This finding led us to propose a consensus sequence located at the amino-terminus of apocytochromes c, and critical for substrate recognition and heme ligation by CCHL.
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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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