BAIT
TSA1
TPX1, ZRG14, thioredoxin peroxidase TSA1, cTPxI, L000002365, YML028W
Thioredoxin peroxidase; acts as both ribosome-associated and free cytoplasmic antioxidant; self-associates to form high-molecular weight chaperone complex under oxidative stress; chaperone activity essential for growth in zinc deficiency; required for telomere length maintenance; protein abundance increases, forms cytoplasmic foci during DNA replication stress; TSA1 has a paralog, TSA2, that arose from the whole genome duplication
GO Process (8)
GO Function (4)
GO Component (3)
Gene Ontology Biological Process
Gene Ontology Molecular Function
Saccharomyces cerevisiae (S288c)
PREY
SCS2
phosphatidylinositol-binding protein SCS2, L000002629, YER120W
Integral ER membrane protein, regulates phospholipid metabolism; one of 6 proteins (Ist2p, Scs2p, Scs22p, Tcb1p, Tcb2p, Tcb3p) that connect ER to the plasma membrane (PM) and regulate PI4P levels by controlling access of Sac1p phosphatase to its substrate PI4P in the PM; interacts with FFAT motif of Opi1p; involved in telomeric silencing; null shows inositol auxotrophy above 34 deg C; VAP homolog; SCS2 has a paralog, SCS22, that arose from the whole genome duplication
GO Process (8)
GO Function (2)
GO Component (6)
Gene Ontology Biological Process
- chromatin silencing at telomere [IGI, IMP]
- endoplasmic reticulum inheritance [IGI, IMP]
- endoplasmic reticulum membrane organization [IGI]
- endoplasmic reticulum polarization [IDA]
- negative regulation of transcription factor import into nucleus [IMP, IPI]
- phospholipid biosynthetic process [IGI, IMP]
- regulation of intracellular lipid transport [IMP]
- regulation of phosphatidylinositol dephosphorylation [IGI]
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
Lifespan Control by Redox-Dependent Recruitment of Chaperones to Misfolded Proteins.
Caloric restriction (CR) extends the lifespan of flies, worms, and yeast by counteracting age-related oxidation of H2O2-scavenging peroxiredoxins (Prxs). Here, we show that increased dosage of the major cytosolic Prx in yeast, Tsa1, extends lifespan in an Hsp70 chaperone-dependent and CR-independent manner without increasing H2O2 scavenging or genome stability. We found that Tsa1 and Hsp70 physically interact and that hyperoxidation ... [more]
Cell Jun. 30, 2016; 166(1);140-51 [Pubmed: 27264606]
Throughput
- High Throughput
Ontology Terms
- inviable (APO:0000112)
Additional Notes
- SGA with tsa1 as bait
- Table S1
Curated By
- BioGRID