SGD Paper 
Kim TS, et al. (2003) STA10 repression of STA gene expression is caused by a defective activator, flo8, in Saccharomyces cerevisiae. Curr Genet 44(5):261-7
Abstract: The expression of STA genes that encode extracellular glucoamylase isozymes is repressed in most laboratory Saccharomyces cerevisiae strains, which are believed to contain an undefined repressor, designated STA10. To identify the regulator involved in STA10 repression, we investigate the FLO8, MSN1, MSS11, STE12, and TEC1 genes. The Deltaflo8 or Deltamss11 deletion mutants in the sta10 genetic background exhibit both a loss of flocculation ability and a reduction in extracellular glucoamylase activity, as in the STA10 strain. Moreover, the STA10 repression is suppressed completely or partially by the introduction of a single copy of the FLO8 or MSS11 genes. Sequence analysis and complementation testing of the STA10 strain reveal that it has an inactive, mutated flo8-1 allele. A random spore analysis and transplacement (allele replacement) experiment confirms that the repressive phenotype of STA10 is due to the amber mutation of the transcriptional activator, FLO8.
| Status: Published | Type: Journal Article | PubMed ID: 14523573 |
Topics addressed in this paper
Number of different genes curated to this paper: 5
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