BAIT
KES1
BSR3, LPI3, OSH4, oxysterol-binding protein KES1, L000000894, YPL145C
One of seven members of the yeast oxysterol binding protein family; involved in negative regulation of Sec14p-dependent Golgi complex secretory functions, peripheral membrane protein that localizes to the Golgi complex; KES1 has a paralog, HES1, that arose from the whole genome duplication
GO Process (8)
GO Function (6)
GO Component (3)
Gene Ontology Biological Process
Gene Ontology Molecular Function
Gene Ontology Cellular Component
Saccharomyces cerevisiae (S288c)
PREY
STE20
mitogen-activated protein kinase kinase kinase kinase STE20, L000002123, YHL007C
Cdc42p-activated signal transducing kinase; involved in pheromone response, pseudohyphal/invasive growth, vacuole inheritance, down-regulation of sterol uptake; GBB motif binds Ste4p; member of the PAK (p21-activated kinase) family
GO Process (17)
GO Function (4)
GO Component (5)
Gene Ontology Biological Process
- activation of MAPKKK activity [IDA]
- bipolar cellular bud site selection [IGI, IMP]
- budding cell apical bud growth [IGI, IMP]
- cellular bud site selection [IMP]
- cellular response to heat [IMP]
- invasive growth in response to glucose limitation [IMP]
- negative regulation of gene expression [IGI, IMP]
- osmosensory signaling pathway via Sho1 osmosensor [IGI, IMP]
- pheromone-dependent signal transduction involved in conjugation with cellular fusion [IGI, IMP]
- positive regulation of apoptotic process [IMP]
- protein phosphorylation [IDA]
- pseudohyphal growth [IMP]
- regulation of exit from mitosis [IMP]
- signal transduction involved in filamentous growth [IMP]
- sterol import [IMP]
- stress granule assembly [IGI, IMP]
- vacuole inheritance [IGI, 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 oxysterol binding protein Kes1p regulates Golgi apparatus phosphatidylinositol-4-phosphate function.
The Saccharomyces cerevisiae phosphatidylcholine/phosphatidylinositol transfer protein Sec14p is required for Golgi apparatus-derived vesicular transport through coordinate regulation of phospholipid metabolism. Sec14p is normally essential. The essential requirement for SEC14 can be bypassed by inactivation of (i) the CDP-choline pathway for phosphatidylcholine synthesis or (ii) KES1, which encodes an oxysterol binding protein. A unique screen was used to determine genome-wide genetic ... [more]
Proc. Natl. Acad. Sci. U.S.A. Sep. 25, 2007; 104(39);15352-7 [Pubmed: 17881569]
Throughput
- High Throughput
Ontology Terms
- phenotype: inviable (APO:0000112)
Additional Notes
- An SGA screen was used to identify genes specifically required for viability of the query strain which was a sec14 kes1 double mutant.
Curated By
- BioGRID