BAIT

VPS74

API1, MNN3, YDR372C
Golgi phosphatidylinositol-4-kinase effector and PtdIns4P sensor; interacts with the cytosolic domains of cis and medial glycosyltransferases, and in the PtdIns4P-bound state mediates the targeting of these enzymes to the Golgi; interacts with the catalytic domain of Sac1p, the major cellular PtdIns4P phosphatase, to direct dephosphosphorylation of the Golgi pool of PtdIns4P; tetramerization required for function; ortholog of human GOLPH3/GPP34/GMx33
Saccharomyces cerevisiae (S288c)
PREY

COP1

RET1, SEC33, SOO1, L000002603, YDL145C
Alpha subunit of COPI vesicle coatomer complex; complex surrounds transport vesicles in the early secretory pathway
GO Process (2)
GO Function (1)
GO Component (1)

Gene Ontology Biological Process

Gene Ontology Molecular Function

Gene Ontology Cellular Component

Saccharomyces cerevisiae (S288c)

Reconstituted Complex

An interaction is detected between purified proteins in vitro.

Publication

A conserved N-terminal arginine-motif in GOLPH3-family proteins mediates binding to coatomer.

Tu L, Chen L, Banfield DK

Vps74p, a member of the GOLPH3 protein family, binds directly to coatomer and the cytoplasmic tails of a subset of Golgi-resident glycosyltransferases to mediate their Golgi retention. We identify a cluster of arginine residues at the N-terminal end of GOLPH3 proteins that are necessary and sufficient to mediate coatomer binding. While loss of coatomer binding renders Vps74p non-functional for glycosyltransferase ... [more]

Traffic Nov. 01, 2012; 13(11);1496-507 [Pubmed: 22889169]

Throughput

  • Low Throughput

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
COP1 VPS74
Negative Genetic
Negative Genetic

Mutations/deletions in separate genes, each of which alone causes a minimal phenotype, but when combined in the same cell results in a more severe fitness defect or lethality under a given condition. This term is reserved for high or low throughput studies with scores.

High-0.2275BioGRID
363150
COP1 VPS74
Negative Genetic
Negative Genetic

Mutations/deletions in separate genes, each of which alone causes a minimal phenotype, but when combined in the same cell results in a more severe fitness defect or lethality under a given condition. This term is reserved for high or low throughput studies with scores.

High-0.3386BioGRID
1966087
VPS74 COP1
Reconstituted Complex
Reconstituted Complex

An interaction is detected between purified proteins in vitro.

Low-BioGRID
-

Curated By

  • BioGRID