Abstract
Allosuppressor (sal) mutations enhance the efficiency of the yeast ochre suppressor SUQ5 and define five unlinked loci, SAL1-SAL5. A number of sal4 mutants were isolated and found to have pleiotropic, allele;specific phenotypes, including hypersensitivity in vivo to paromomycin and other antibiotics that stimulate translational errors in yeast. To examine further the nature of the SAL4 gene product, the wild type SAL4 gene was isolated by complementation of a conditional lethal allele sal4-2, and demonstrated to be a single copy gene encoding a single 1.6 kb transcript. Restriction mapping and DNA hybridisation analysis were used to demonstrate that the SAL4 gene is identical to the previously identified omnipotent suppressor gene SUP45 (SUP1). Our results implicate the SAL4 gene product as playing a major role in maintaining translational accuracy in yeast.
MeSH Terms
Anti-Bacterial Agents/pharmacology
Blotting, Northern
Blotting, Southern
Cycloheximide/pharmacology
DNA Probes
DNA, Fungal/analysis
Fungal Proteins/genetics
Genes, Fungal
Gentamicins/pharmacology
Hygromycin B/pharmacology
Nucleic Acid Hybridization
Paromomycin/pharmacology
Phenotype
Protein Biosynthesis
RNA, Fungal/analysis
Restriction Mapping
Saccharomyces cerevisiae/drug effects,genetics
Suppression, Genetic
Chemicals
Anti-Bacterial Agents
DNA Probes
DNA, Fungal
Fungal Proteins
Gentamicins
RNA, Fungal
Hygromycin B
Paromomycin
Cycloheximide
antibiotic G 418
Authors & Affiliations
4 authors, click to expand affiliations / ORCID
Crouzet M
Biological Laboratory, University of Canterbury, Kent, UK.
Izgu F
Grant C M
Tuite M F
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