BAIT
PPH3
phosphoprotein phosphatase PP4 catalytic subunit PPH3, L000001471, YDR075W
Catalytic subunit of protein phosphatase PP4 complex; Pph3p and Psy2p form active complex, Psy4p may provide substrate specificity; regulates recovery from the DNA damage checkpoint, the gene conversion- and single-strand annealing-mediated pathways of meiotic double-strand break repair and efficient Non-Homologous End-Joining (NHEJ) pathway; involved in activation of Gln3p to alleviate nitrogen catabolite repression; Pph3p and Psy2p localize to foci on meiotic chromosomes
GO Process (7)
GO Function (1)
GO Component (4)
Gene Ontology Biological Process
- double-strand break repair via homologous recombination [IGI]
- negative regulation of DNA damage checkpoint [IMP]
- negative regulation of glucose mediated signaling pathway [IMP]
- positive regulation of double-strand break repair via nonhomologous end joining [IMP]
- positive regulation of nitrogen compound metabolic process [IMP]
- protein dephosphorylation [IDA, IMP]
- signal transduction involved in meiotic recombination checkpoint [IMP]
Gene Ontology Molecular Function
Gene Ontology Cellular Component
Saccharomyces cerevisiae (S288c)
PREY
SAW1
DNA-binding protein SAW1, YAL027W
5'- and 3'-flap DNA binding protein; recruits Rad1p-Rad10p to single-strand annealing intermediates with 3' non-homologous tails for removal during double-strand break repair; complexes with Rad1p-Rad10p and stimulates its endonuclease activity; green fluorescent protein (GFP)-fusion protein localizes to the nucleus
GO Process (2)
GO Function (2)
GO Component (1)
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
Phosphatase Complex Pph3/Psy2 Is Involved in Regulation of Efficient Non-Homologous End-Joining Pathway in the Yeast Saccharomyces cerevisiae.
One of the main mechanisms for double stranded DNA break (DSB) repair is through the non-homologous end-joining (NHEJ) pathway. Using plasmid and chromosomal repair assays, we showed that deletion mutant strains for interacting proteins Pph3p and Psy2p had reduced efficiencies in NHEJ. We further observed that this activity of Pph3p and Psy2p appeared linked to cell cycle Rad53p and Chk1p ... [more]
PLoS ONE Feb. 06, 2014; 9(1);e87248 [Pubmed: 24498054]
Throughput
- High Throughput
Ontology Terms
- phenotype: inviable (APO:0000112)
- phenotype: resistance to chemicals (APO:0000087)
Additional Notes
- when DNA damage was induced, overexpression of either PPH3 or PSY2 formed SDL interactions with gene deletion strains for chk1, saw1 and nej1 in a synthetic dosage lethality screen
Curated By
- BioGRID