BAIT

SSK1

mitogen-activated protein kinase kinase kinase SSK1, L000002084, YLR006C
Cytoplasmic phosphorelay intermediate osmosensor and regulator; part of a two-component signal transducer that mediates osmosensing via a phosphorelay mechanism; required for mitophagy; dephosphorylated form is degraded by the ubiquitin-proteasome system; potential Cdc28p substrate
Kinome Project (Sc)
Saccharomyces cerevisiae (S288c)
PREY

PTP2

tyrosine protein phosphatase PTP2, L000001526, YOR208W
Nuclear phosphotyrosine-specific phosphatase involved in osmosensing; involved in the inactivation of mitogen-activated protein kinase (MAPK) during osmolarity sensing; dephosporylates Hog1p MAPK and regulates its localization; with Msg5p co-regulates the calcium signaling pathway
Kinome Project (Sc)
Saccharomyces cerevisiae (S288c)

Synthetic Rescue

A genetic interaction is inferred when mutations or deletions of one gene rescues the lethality or growth defect of a strain mutated or deleted for another gene.

Publication

Activation of the Hog1 MAPK by the Ssk2/Ssk22 MAP3Ks, in the absence of the osmosensors, is not sufficient to trigger osmostress adaptation in Saccharomyces cerevisiae.

Vazquez-Ibarra A, Subirana L, Ongay-Larios L, Kawasaki L, Rojas-Ortega E, Rodriguez-Gonzalez M, de Nadal E, Posas F, Coria R

Yeast cells respond to hyperosmotic stress by activating the high-osmolarity glycerol (HOG) pathway, which consists of two branches, Hkr1/Msb2-Sho1 and Sln1, which trigger phosphorylation and nuclear internalization of the Hog1 mitogen-activated protein kinase. In the nucleus, Hog1 regulates gene transcription and cell cycle progression, which allows the cell to respond and adapt to hyperosmotic conditions. This study demonstrates that the ... [more]

FEBS J. Mar. 01, 2018; 285(6);1079-1096 [Pubmed: 29341399]

Throughput

  • Low Throughput

Ontology Terms

  • phenotype: protein/peptide modification (APO:0000131)
  • phenotype: osmotic stress resistance (APO:0000082)

Additional Notes

  • deletion of ptp2 increases growth in osmotic stress in the ssk1/ste11 double mutant
  • genetic complex

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
PTP2 SSK1
Dosage Lethality
Dosage Lethality

A genetic interaction is inferred when over expression or increased dosage of one gene causes lethality in a strain that is mutated or deleted for another gene.

Low-BioGRID
153987

Curated By

  • BioGRID