BAIT
SIT4
PPH1, type 2A-related serine/threonine-protein phosphatase SIT4, L000001901, YDL047W
Type 2A-related serine-threonine phosphatase; functions in the G1/S transition of the mitotic cycle; regulator of COPII coat dephosphorylation; required for ER to Golgi traffic; interacts with Hrr25p kinase; cytoplasmic and nuclear protein that modulates functions mediated by Pkc1p including cell wall and actin cytoskeleton organization; similar to human PP6
GO Process (10)
GO Function (1)
GO Component (2)
Gene Ontology Biological Process
- DNA repair [IMP]
- G1/S transition of mitotic cell cycle [IGI]
- TOR signaling [IMP]
- actin cytoskeleton organization [IMP]
- cellular response to oxidative stress [IMP]
- dephosphorylation [IMP]
- fungal-type cell wall organization [IMP]
- intracellular signal transduction [IMP]
- replicative cell aging [IMP]
- tRNA wobble uridine modification [IMP]
Gene Ontology Molecular Function
Saccharomyces cerevisiae (S288c)
PREY
PRE1
proteasome core particle subunit beta 4, L000001483, YER012W
Beta 4 subunit of the 20S proteasome; localizes to the nucleus throughout the cell cycle
GO Process (2)
GO Function (1)
GO Component (4)
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
Sit4 phosphatase is functionally linked to the ubiquitin-proteasome system.
Using a synthetic lethality screen we found that the Sit4 phosphatase is functionally linked to the ubiquitin-proteasome system. Yeast cells harboring sit4 mutations and an impaired proteasome (due to pre1-1 pre4-1 mutations) exhibited defective growth on minimal medium. Nearly identical synthetic effects were found when sit4 mutations were combined with defects of the Rad6/Ubc2- and Cdc34/Ubc3-dependent ubiquitination pathways. Under synthetic ... [more]
Genetics Aug. 01, 2003; 164(4);1305-21 [Pubmed: 12930741]
Throughput
- Low Throughput
Ontology Terms
- phenotype: inviable (APO:0000112)
Curated By
- BioGRID