BAIT
GRR1
CAT80, COT2, SDC1, SSU2, SCF ubiquitin ligase complex subunit GRR1, L000000730, YJR090C
F-box protein component of an SCF ubiquitin-ligase complex; modular substrate specificity factor which associates with core SCF (Cdc53p, Skp1p and Hrt1p/Rbx1p) to form the SCF(Grr1) complex; SCF(Grr1) acts as a ubiquitin-protein ligase directing ubiquitination of substrates such as: Gic2p, Mks1p, Mth1p, Cln1p, Cln2p and Cln3p; involved in carbon catabolite repression, glucose-dependent divalent cation transport, glucose transport, morphogenesis, and sulfite detoxification
GO Process (7)
GO Function (2)
GO Component (4)
Gene Ontology Biological Process
- G1/S transition of mitotic cell cycle [TAS]
- SCF-dependent proteasomal ubiquitin-dependent protein catabolic process [IPI]
- cellular response to DNA damage stimulus [IMP]
- cellular response to methylmercury [IMP]
- mitotic cell cycle arrest in response to pheromone [IMP]
- protein polyubiquitination [IMP]
- protein ubiquitination [IGI, IPI]
Gene Ontology Molecular Function
Gene Ontology Cellular Component
Saccharomyces cerevisiae (S288c)
PREY
PPH22
PPH2, phosphoprotein phosphatase 2A catalytic subunit PPH22, L000001473, YDL188C
Catalytic subunit of protein phosphatase 2A (PP2A); functionally redundant with Pph21p; methylated at C terminus; forms alternate complexes with several regulatory subunits; involved in signal transduction and regulation of mitosis; protein abundance increases in response to DNA replication stress; PPH22 has a paralog, PPH21, that arose from the whole genome duplication
GO Process (6)
GO Function (1)
GO Component (1)
Gene Ontology Biological Process
Gene Ontology Molecular Function
Gene Ontology Cellular Component
Saccharomyces cerevisiae (S288c)
Synthetic Lethality
A genetic interaction is inferred when mutations or deletions in separate genes, each of which alone causes a minimal phenotype, result in lethality when combined in the same cell under a given condition.
Publication
PP2A (Cdc55) regulates G 1 cyclin stability.
Maintaining accurate progression through the cell cycle requires the proper temporal expression and regulation of cyclins. The mammalian D-type cyclins promote G 1-S transition. D1 cyclin protein stability is regulated through its ubiquitylation and resulting proteolysis catalyzed by the SCF E3 ubiquitin ligase complex containing the F-box protein, Fbx4. SCF E3-ligase-dependent ubiquitylation of D1 is trigged by an increase in ... [more]
Cell Cycle Mar. 21, 2013; 12(8); [Pubmed: 23518505]
Throughput
- Low Throughput
Ontology Terms
- phenotype: inviable (APO:0000112)
Additional Notes
- grr1 pph21 pph22 triple mutant cells are inviable
Curated By
- BioGRID