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
PPH21
phosphoprotein phosphatase 2A catalytic subunit PPH21, L000001472, YDL134C
Catalytic subunit of protein phosphatase 2A (PP2A); functionally redundant with Pph22p; methylated at C terminus; forms alternate complexes with several regulatory subunits; involved in signal transduction and regulation of mitosis; forms nuclear foci upon DNA replication stress; PPH21 has a paralog, PPH22, that arose from the whole genome duplication
GO Process (6)
GO Function (1)
GO Component (3)
Gene Ontology Biological Process
Gene Ontology Molecular Function
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