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
CDC28
CDK1, HSL5, SRM5, cyclin-dependent serine/threonine-protein kinase CDC28, L000000267, YBR160W
Cyclin-dependent kinase (CDK) catalytic subunit; master regulator of mitotic and meiotic cell cycles; alternately associates with G1 (CLNs), S and G2/M (CLBs) phase cyclins, which provide substrate specificity; regulates cell cycle and basal transcription, chromosome duplication and segregation, lipid biosynthesis, membrane trafficking, polarized growth, and morphogenesis; abundance increases in DNA replication stress; transcript induction in osmostress involves antisense RNA
GO Process (24)
GO Function (5)
GO Component (8)
Gene Ontology Biological Process
- 7-methylguanosine mRNA capping [IMP]
- chromatin remodeling [IMP]
- meiotic DNA double-strand break processing [IGI]
- negative regulation of double-strand break repair via nonhomologous end joining [IMP]
- negative regulation of meiotic cell cycle [IMP]
- negative regulation of mitotic cell cycle [IDA]
- negative regulation of sister chromatid cohesion [IMP]
- negative regulation of transcription, DNA-templated [IDA, IMP]
- peptidyl-serine phosphorylation [IDA]
- phosphorylation of RNA polymerase II C-terminal domain [IDA]
- positive regulation of meiotic cell cycle [IDA, IMP]
- positive regulation of mitotic cell cycle [IMP]
- positive regulation of nuclear cell cycle DNA replication [IDA, IMP]
- positive regulation of spindle pole body separation [IGI, IMP]
- positive regulation of transcription from RNA polymerase II promoter [IMP]
- positive regulation of transcription, DNA-templated [IDA, IGI]
- positive regulation of triglyceride catabolic process [IGI, IMP]
- protein phosphorylation [IDA]
- regulation of budding cell apical bud growth [IGI, IMP]
- regulation of double-strand break repair via homologous recombination [IMP]
- regulation of filamentous growth [IMP]
- regulation of protein localization [IMP]
- synaptonemal complex assembly [IMP]
- vesicle-mediated transport [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
The SIT4 protein phosphatase functions in late G1 for progression into S phase.
Saccharomyces cerevisiae strains containing temperature-sensitive mutations in the SIT4 protein phosphatase arrest in late G1 at the nonpermissive temperature. Order-of-function analysis shows that SIT4 is required in late G1 for progression into S phase. While the levels of SIT4 do not change in the cell cycle, SIT4 associates with two high-molecular-weight phosphoproteins in a cell-cycle-dependent fashion. In addition, we have ... [more]
Mol. Cell. Biol. Apr. 01, 1991; 11(4);2133-48 [Pubmed: 1848673]
Throughput
- Low Throughput
Ontology Terms
- phenotype: inviable (APO:0000112)
Additional Notes
- data not shown
Curated By
- BioGRID