BAIT
MSB3
GYP3, L000003918, YNL293W
Rab GTPase-activating protein; regulates endocytosis via inactivation of Vps21p at endosomes and vacuole fusion via inactivation of Ypt7p at vacuoles; also acts on Ypt52p and Sec4p; required for proper actin organization; also localizes to plasma membrane and sites of polarized growth; relocalizes from bud neck to cytoplasm upon DNA replication stress; similar to the TBC-domain Tre2 oncogene; MSB3 has a paralog, MSB4, that arose from the whole genome duplication
GO Process (6)
GO Function (1)
GO Component (9)
Gene Ontology Biological Process
Gene Ontology Molecular Function
Gene Ontology Cellular Component
Saccharomyces cerevisiae (S288c)
PREY
PTC1
CWH47, KCS2, TPD1, type 2C protein phosphatase PTC1, L000000890, L000001523, YDL006W
Type 2C protein phosphatase (PP2C); dephosphorylates Hog1p, inactivating osmosensing MAPK cascade; involved in Fus3p activation during pheromone response; deletion affects precursor tRNA splicing, mitochondrial inheritance, and sporulation
GO Process (5)
GO Function (1)
GO Component (2)
Gene Ontology Biological Process
- inactivation of MAPK activity involved in osmosensory signaling pathway [IDA, IGI, IMP]
- mitochondrion inheritance [IMP]
- pheromone-dependent signal transduction involved in conjugation with cellular fusion [IMP]
- protein dephosphorylation [IDA]
- tRNA splicing, via endonucleolytic cleavage and ligation [IMP]
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
Different polarisome components play distinct roles in Slt2p-regulated cortical ER inheritance in Saccharomyces cerevisiae.
Ptc1p, a type 2C protein phosphatase, is required for a late step in cortical endoplasmic reticulum (cER) inheritance in Saccharomyces cerevisiae. In ptc1Δ cells, ER tubules migrate from the mother cell and contact the bud tip, yet fail to spread around the bud cortex. This defect results from the failure to inactivate a bud tip-associated pool of the cell wall ... [more]
Mol. Biol. Cell Oct. 01, 2013; 24(19);3145-54 [Pubmed: 23924898]
Throughput
- Low Throughput
Ontology Terms
- phenotype: inviable (APO:0000112)
Additional Notes
- Figure S1
- genetic complex
- msb3 msb4 ptc1 triple mutant
Curated By
- BioGRID