BAIT
SPA2
FUS6, PEA1, PPF1, L000001989, YLL021W
Component of the polarisome; functions in actin cytoskeletal organization during polarized growth; acts as a scaffold for Mkk1p and Mpk1p cell wall integrity signaling components; potential Cdc28p substrate; coding sequence contains length polymorphisms in different strains; SPA2 has a paralog, SPH1, that arose from the whole genome duplication
GO Process (10)
GO Function (1)
GO Component (6)
Gene Ontology Biological Process
- bipolar cellular bud site selection [IMP]
- budding cell apical bud growth [IGI, IMP]
- establishment of cell polarity [IMP]
- invasive filamentous growth [IGI]
- mating projection assembly [IGI]
- positive regulation of actin cytoskeleton reorganization [IGI, IMP]
- pseudohyphal growth [IMP]
- regulation of initiation of mating projection growth [IMP]
- regulation of protein localization [IMP]
- regulation of termination of mating projection growth [IMP]
Gene Ontology Molecular Function
Gene Ontology Cellular Component
Saccharomyces cerevisiae (S288c)
PREY
RHO1
Rho family GTPase RHO1, L000001630, YPR165W
GTP-binding protein of the rho subfamily of Ras-like proteins; involved in establishment of cell polarity; regulates protein kinase C (Pkc1p) and the cell wall synthesizing enzyme 1,3-beta-glucan synthase (Fks1p and Gsc2p)
GO Process (12)
GO Function (1)
GO Component (10)
Gene Ontology Biological Process
- actin cytoskeleton organization [IMP]
- actin cytoskeleton reorganization [IGI, IPI]
- budding cell bud growth [IGI, IMP]
- positive regulation of endocytosis [IMP]
- positive regulation of protein kinase C signaling [IDA, IGI, IMP, IPI]
- regulation of cell size [IMP]
- regulation of cell wall (1->3)-beta-D-glucan biosynthetic process [IDA, IMP]
- regulation of exocyst localization [IMP]
- regulation of fungal-type cell wall organization [IMP]
- regulation of protein localization [IMP]
- regulation of vacuole fusion, non-autophagic [IMP]
- small GTPase mediated signal transduction [IDA, 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
Rho1p-Bni1p-Spa2p interactions: implication in localization of Bni1p at the bud site and regulation of the actin cytoskeleton in Saccharomyces cerevisiae.
Rho1p is a yeast homolog of mammalian RhoA small GTP-binding protein. Rho1p is localized at the growth sites and required for bud formation. We have recently shown that Bni1p is a potential target of Rho1p and that Bni1p regulates reorganization of the actin cytoskeleton through interactions with profilin, an actin monomer-binding protein. Using the yeast two-hybrid screening system, we cloned ... [more]
Mol. Biol. Cell May. 01, 1998; 9(5);1221-33 [Pubmed: 9571251]
Throughput
- Low Throughput
Ontology Terms
- phenotype: inviable (APO:0000112)
Curated By
- BioGRID