BAIT

TPK3

cAMP-dependent protein kinase catalytic subunit TPK3, L000002327, YKL166C
cAMP-dependent protein kinase catalytic subunit; promotes vegetative growth in response to nutrients via the Ras-cAMP signaling pathway; partially redundant with Tpk1p and Tpk2p; localizes to P-bodies during stationary phase; TPK3 has a paralog, TPK1, that arose from the whole genome duplication
Kinome Project (Sc)
GO Process (4)
GO Function (2)
GO Component (3)

Gene Ontology Biological Process

Gene Ontology Molecular Function

Gene Ontology Cellular Component

Saccharomyces cerevisiae (S288c)
PREY

WHI3

mRNA-binding protein WHI3, L000002486, YNL197C
RNA binding protein that sequesters CLN3 mRNA in cytoplasmic foci; regulates genes involved in the cell cycle, sister chromatid cohesion, and stress response; acts as a cytoplasmic retention factor for Cdc28p and associated cyclins; regulates cell fate and dose-dependently regulates the critical cell size required for passage through Start; Tpk1p (PKA) mediated phosphorylation (S568) inhibits Whi3p function, decreasing its interaction with CLN3 mRNA; regulates ploidy
Saccharomyces cerevisiae (S288c)

Biochemical Activity (Phosphorylation)

An interaction is inferred from the biochemical effect of one protein upon another, for example, GTP-GDP exchange activity or phosphorylation of a substrate by a kinase. The bait protein executes the activity on the substrate hit protein. A Modification value is recorded for interactions of this type with the possible values Phosphorylation, Ubiquitination, Sumoylation, Dephosphorylation, Methylation, Prenylation, Acetylation, Deubiquitination, Proteolytic Processing, Glucosylation, Nedd(Rub1)ylation, Deacetylation, No Modification, Demethylation.

Publication

cAMP/PKA Regulates Multiple Aspects of Cellular Events by Phosphorylating Whi3 Cell-Cycle Regulator in Budding Yeast.

Mizunuma M, Tsubakiyama R, Ogawa T, Shitamukai A, Kobayashi Y, Inai T, Kume K, Hirata D

The Start/G1 phase in the cell cycle is an important period during which cells determine the fate, onset of mitotic progression or the switch to developmental stages in response to both external and internal signals. In the budding yeast Saccharomyces cerevisiae, Whi3, a negative regulator of the G1 cyclins, has been identified as a positive regulator of cell-size control and ... [more]

J. Biol. Chem. Mar. 07, 2013; 0(0); [Pubmed: 23471970]

Throughput

  • Low Throughput

Additional Notes

  • phosphorylated at Ser-568

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
WHI3 TPK3
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-0.1492BioGRID
2171369

Curated By

  • BioGRID