BAIT

SST2

GTPase-activating protein SST2, L000002093, YLR452C
GTPase-activating protein for Gpa1p; regulates desensitization to alpha factor pheromone; also required to prevent receptor-independent signaling of the mating pathway; member of the RGS (regulator of G-protein signaling) family
GO Process (2)
GO Function (1)
GO Component (1)
Saccharomyces cerevisiae (S288c)
PREY

KSS1

mitogen-activated serine/threonine-protein kinase KSS1, L000000922, YGR040W
Mitogen-activated protein kinase (MAPK); involved in signal transduction pathways that control filamentous growth and pheromone response; the KSS1 gene is nonfunctional in S288C strains and functional in W303 strains
Saccharomyces cerevisiae (S288c)

Phenotypic Suppression

A genetic interaction is inferred when mutation or over expression of one gene results in suppression of any phenotype (other than lethality/growth defect) associated with mutation or over expression of another gene.

Publication

A putative protein kinase overcomes pheromone-induced arrest of cell cycling in S. cerevisiae.

Courchesne WE, Kunisawa R, Thorner J

MATa cells carrying an sst2 mutation are unable to recover from the G1-specific cell cycle arrest induced by the mating pheromone alpha factor. The KSS1 gene, when overexpressed, suppresses this adaptation defect. KSS1 overexpression also suppresses the recovery defect manifested by cells expressing an alpha factor receptor lacking its 136 amino acid cytoplasmic tail. Because SST2 product and the receptor ... [more]

Cell Sep. 22, 1989; 58(6);1107-19 [Pubmed: 2673544]

Throughput

  • Low Throughput

Ontology Terms

  • phenotype: cell cycle progression (APO:0000253)

Additional Notes

  • overexpression of KSS1 represses alpha factor induced cell cycle arrest seen in SST2 mutants

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
KSS1 SST2
Negative Genetic
Negative Genetic

Mutations/deletions in separate genes, each of which alone causes a minimal phenotype, but when combined in the same cell results in a more severe fitness defect or lethality under a given condition. This term is reserved for high or low throughput studies with scores.

High-0.1765BioGRID
382013
SST2 KSS1
Negative Genetic
Negative Genetic

Mutations/deletions in separate genes, each of which alone causes a minimal phenotype, but when combined in the same cell results in a more severe fitness defect or lethality under a given condition. This term is reserved for high or low throughput studies with scores.

High-0.1765BioGRID
401878
KSS1 SST2
Negative Genetic
Negative Genetic

Mutations/deletions in separate genes, each of which alone causes a minimal phenotype, but when combined in the same cell results in a more severe fitness defect or lethality under a given condition. This term is reserved for high or low throughput studies with scores.

High-0.176BioGRID
911031
SST2 KSS1
Two-hybrid
Two-hybrid

Bait protein expressed as a DNA binding domain (DBD) fusion and prey expressed as a transcriptional activation domain (TAD) fusion and interaction measured by reporter gene activation.

Low-BioGRID
-

Curated By

  • BioGRID