The Saccharomyces cerevisiae YDJ1 protein (YDJ1p) contains a C-terminal "CaaX box" motif common to proteins that are modified by prenylation. In the present study we show that YDJ1p is a specific substrate for both yeast and mammalian protein farnesyltransferase enzymes in vitro. A mutant form of YDJ1p, in which the conserved cysteine of the CaaX box is mutated to a serine (ydj1-S406p), cannot be farnesylated in vitro. After expression in S. cerevisiae, ydj1-S406p displays a reduced electrophoretic mobility and an increased cytosolic localization in subcellular fractionation experiments when compared to wild type YDJ1p. Expression of ydj1-S406 in cells lacking YDJ1 results in a temperature-sensitive growth phenotype in S. cerevisiae. These data indicate that farnesylation of YDJ1p is required for its function at elevated temperatures.
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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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