In eukaryotes small secreted peptides are often proteolytically cleaved from larger precursors. In Saccharomyces cerevisiae multiple proteolytic processing steps are required for production of mature 12-amino-acid a-factor from its 36-amino-acid precursor. This study provides additional genetic data supporting a direct role for Afc1p in cleavage of the carboxyl-terminal tripeptide from the CAAX motif of the prenylated a-factor precursor. In addition, Afc1p had a second role in a-factor processing that was independent of, and in addition to, its role in the carboxyl-terminal processing in vivo. Using ubiquitin-a-factor fusions we confirmed that the pro-region of the a-factor precursor was not required for production of the mature pheromone. However, the pro-region of the a-factor precursor contributed quantitatively to a-factor production.
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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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