BAIT

FAR1

cyclin-dependent protein serine/threonine kinase inhibiting protein FAR1, L000000600, YJL157C
CDK inhibitor and nuclear anchor; during the cell cycle Far1p sequesters the GEF Cdc24p in the nucleus; phosphorylation by Cdc28p-Cln results in SCFCdc4 complex-mediated ubiquitin-dependent degradation, releasing Cdc24p for export and activation of GTPase Cdc42p; in response to pheromone, phosphorylation of Far1p by MAPK Fus3p results in association with, and inhibition of Cdc28p-Cln, as well as Msn5p mediated nuclear export of Far1p-Cdc24p, targeting Cdc24p to polarity sites
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

Fus3p and Kss1p control G1 arrest in Saccharomyces cerevisiae through a balance of distinct arrest and proliferative functions that operate in parallel with Far1p.

Cherkasova V, Lyons DM, Elion EA

In Saccharomyces cerevisiae, mating pheromones activate two MAP kinases (MAPKs), Fus3p and Kss1p, to induce G1 arrest prior to mating. Fus3p is known to promote G1 arrest by activating Far1p, which inhibits three Clnp/Cdc28p kinases. To analyze the contribution of Fus3p and Kss1p to G1 arrest that is independent of Far1p, we constructed far1 CLN strains that undergo G1 arrest ... [more]

Genetics Mar. 01, 1999; 151(3);989-1004 [Pubmed: 10049917]

Throughput

  • Low Throughput

Ontology Terms

  • phenotype: pheromone sensitivity (APO:0000037)

Additional Notes

  • deletion of Kss1 completely blocks the pheromone sensitivity seen in a Far1/Ste11 double mutant
  • genetic complex

Curated By

  • BioGRID