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J Bacteriol

Title:		Extracellular suppression allows mating by pheromone-deficient sterile mutants of Saccharomyces cerevisiae
Author(s):		Chan RK; Melnick LM; Blair LC; Thorner J;
Address:
Journal Title:		J Bacteriol
Year:		1983
Volume:		155
Issue:		2
Page Number:		903 - 906
DOI:		10.1128/jb.155.2.903-906.1983
ISSN/ISBN:		0021-9193 (Print) 1098-5530 (Electronic) 0021-9193 (Linking)
Abstract:		"MAT alpha haploids with mutations in the STE13 or KEX2 gene, and MATa haploids with mutations in the STE6 or STE14 gene, do not mate with wild-type cells of the opposite mating type. We found that such mutants were able to mate with partners that carry mutations (sst1 and sst2) that cause cells to be supersensitive to yeast mating pheromone action. Mating ability of MAT alpha ste13 and MAT alpha kex2 mutants could also be restored by adding normal MAT alpha cells to mating mixtures or by adding just the appropriate purified pheromone (alpha-factor). Therefore, the mating deficiencies caused by the ste13 and kex2 lesions, and by inference, the ste6 and ste14 mutations, appear to result only from secretion of an insufficient amount of pheromone or a nonfunctional pheromone"
Keywords:		"Animals *Crosses, Genetic Mutation Pheromones/*genetics Saccharomyces cerevisiae/*genetics;"
Notes:		"MedlineChan, R K Melnick, L M Blair, L C Thorner, J eng AI06753/AI/NIAID NIH HHS/ GM21841/GM/NIGMS NIH HHS/ Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, P.H.S. 1983/08/01 J Bacteriol. 1983 Aug; 155(2):903-6. doi: 10.1128/jb.155.2.903-906.1983"