Translation elongation factor 1beta (EF-1beta) catalyzes the exchange of bound GDP for GTP on EF-1alpha. The lethality of a null allele of the TEF5 gene encoding EF-1beta in Saccharomyces cerevisiae was suppressed by extra copies of the TEF2 gene encoding EF-1alpha. The strains with tef5::TRP1 suppressed by extra copies of TEF were slow growing, cold sensitive, hypersensitive to inhibitors of translation elongation and showed increased phenotypic suppression of +1 frameshift and UAG nonsense mutations. Nine dominant mutant alleles of TEF2 that cause increased suppression of frameshift mutations also suppressed the lethality of tef5::TRP1. Most of the strains in which tef5::TRP1 is suppressed by dominant mutant alleles of TEF2 grew more slowly and were more antibiotic sensitive than strains with tef5::TRP1 is suppressed by wild-type TEF2. Two alleles, TEF2-4 and TEF2-10, interact with tef5::TRP1 to produce strains that showed doubling times similar to tef5::TRP1 strains containing extra copies of wild-type TEF2. These strains were less cold sensitive, drug sensitive and correspondingly less efficient suppressor of +1 frameshift mutations. These phenotypes indicate that translation and cell growth are highly sensitive to changes in EF-1alpha and EF-1beta activity.
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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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