Use of a synthetic lethal screen to identify yeast mutants impaired in endocytosis, vacuolar protein sorting and the organization of the cytoskeleton.
Copyright policy )Use of a synthetic lethal screen to identify yeast mutants impaired in endocytosis, vacuolar protein sorting and the organization of the cytoskeleton.
To identify new genes whose products act on the endocytic and vacuolar protein sorting pathways, we screened for mutants that display synthetic growth defects with delta ypt51, a mutant impaired in membrane traffic at a point where these pathways intersect. Seven mutants that fell into six different complementation groups were found to fit this criterium. Two of the mutants (ysl1 and ysl2) are new, two others are defective in the VAN1 gene. Mutants in VAN1 were previously identified by their resistance to the drug orthovanadate. The others represent known endocytosis (rvs167 and sac6) and vacuolar protein sorting (vps41) mutants. As suggested by their genetic interactions with delta ypt51, the newly identified mutants are impaired in endocytosis, vacuolar protein sorting and vacuole biogenesis. In addition, van1 and ysl2 display actin cytoskeletal defects.
- Yale University United States
Saccharomyces cerevisiae Proteins, Genetic Complementation Test, Vesicular Transport Proteins, Cathepsin A, Membrane Proteins, Nuclear Proteins, RNA-Binding Proteins, Biological Transport, Carboxypeptidases, Mannosyltransferases, Actins, Endocytosis, Fungal Proteins, Mutagenesis, Yeasts, Vacuoles, Carrier Proteins, Cell Division, Cytoskeleton
Saccharomyces cerevisiae Proteins, Genetic Complementation Test, Vesicular Transport Proteins, Cathepsin A, Membrane Proteins, Nuclear Proteins, RNA-Binding Proteins, Biological Transport, Carboxypeptidases, Mannosyltransferases, Actins, Endocytosis, Fungal Proteins, Mutagenesis, Yeasts, Vacuoles, Carrier Proteins, Cell Division, Cytoskeleton
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