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
RAD6
PSO8, UBC2, E2 ubiquitin-conjugating protein RAD6, L000001560, YGL058W
Ubiquitin-conjugating enzyme (E2); involved in postreplication repair as a heterodimer with Rad18p, DSBR and checkpoint control as a heterodimer with Bre1p, ubiquitin-mediated N-end rule protein degradation as a heterodimer with Ubr1p, as well as endoplasmic reticulum-associated protein degradation (ERAD) with Ubr1p in the absence of canonical ER membrane ligases
GO Process (17)
GO Function (3)
GO Component (5)
Gene Ontology Biological Process
- DNA-templated transcription, termination [IMP]
- ER-associated ubiquitin-dependent protein catabolic process [IGI]
- chromatin silencing at telomere [IMP]
- double-strand break repair via homologous recombination [IGI]
- error-free postreplication DNA repair [IGI]
- error-free translesion synthesis [IGI]
- error-prone translesion synthesis [IGI]
- histone monoubiquitination [IMP]
- meiotic DNA double-strand break formation [IMP]
- mitotic G1 DNA damage checkpoint [IMP]
- protein monoubiquitination [IMP]
- protein polyubiquitination [IMP]
- protein ubiquitination involved in ubiquitin-dependent protein catabolic process [IMP]
- regulation of dipeptide transport [IMP]
- telomere maintenance via recombination [IGI]
- transcription from RNA polymerase II promoter [IPI]
- ubiquitin-dependent protein catabolic process via the N-end rule pathway [IMP]
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