It was previously shown that ALA1, the only alanyl-tRNA synthetase gene in Saccharomyces cerevisiae, codes for two functionally exclusive protein isoforms through alternative initiation at two consecutive ACG codons and an in-frame downstream AUG. We reported here the cloning and characterization of a homologous gene from Candida albicans. Functional assays show that this gene can substitute for both the cytoplasmic and mitochondrial functions of ALA1 in S. cerevisiae and codes for two distinct protein isoforms through alternative initiation from two in-frame AUG triplets 8-codons apart. Unexpectedly, although the short form acts exclusively in cytoplasm, the longer form provides function in both compartments. Similar observations are made in fractionation assays. Thus, the alanyl-tRNA synthetase gene of C. albicans has evolved an unusual pattern of translation initiation and protein partitioning and codes for protein isoforms that can aminoacylate isoaccepting tRNAs from a different species and from across cellular compartments.
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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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