We report the genetic and biochemical properties of a staurosporine (ST)- and temperature-sensitive mutant, stt10, of Saccharomyces cerevisiae. The stt10 mutant shows an osmoremedial phenotype in a medium with 1 M sorbitol. ST sensitivity of the stt10 mutant was suppressed by overexpression of PKC1/STT1, showing the genetic interactions of STT10 with the PKC1/STT1 pathway. The nucleotide sequence of STT10 predicts a hydrophilic protein composed of 577 amino acids that possesses 20-25% sequence similarity with yeast Slp1/Vam5p, Sec1p and Sly1p, and nematode Unc-18. The stt10 deletion mutant is viable and shows a typical class-D vacuolar protein sorting defective (vps) phenotype. Vacuoles from stt10 cells have a normal vacuolar H(+)-ATPase activity, but are defective in vacuolar acidification. Genetic studies of yeast mutants carrying delta stt10, delta bck1, stt1/pkc1 or stt4 have revealed that their functions are phenotypically related to maintenance of cellular osmotic integrity.
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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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| 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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