BAIT

PBN1

L000003219, YCL052C
Component of glycosylphosphatidylinositol-mannosyltransferase I; essential component; required for the autocatalytic post-translational processing of the protease B precursor Prb1p; localizes to ER in lumenal orientation; homolog of mammalian PIG-X
GO Process (3)
GO Function (1)
GO Component (2)

Gene Ontology Biological Process

Gene Ontology Molecular Function

Gene Ontology Cellular Component

Saccharomyces cerevisiae (S288c)
PREY

ERO1

L000004013, YML130C
Thiol oxidase required for oxidative protein folding in the ER; essential for maintaining proper redox balance in ER; feedback regulation of Ero1p occurs via reduction and oxidation of Ero1p regulatory bonds; reduced Pdi1p activates Ero1p by direct reduction of Ero1p regulatory bonds; depletion of thiol substrates and accumulation of oxidized Pdi1p results in inactivation of Ero1p by both Pdi1p-mediated oxidation and autonomous oxidation of Ero1p regulatory bonds
GO Process (2)
GO Function (2)
GO Component (1)

Gene Ontology Biological Process

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

Pbn1p: an essential endoplasmic reticulum membrane protein required for protein processing in the endoplasmic reticulum of budding yeast.

Subramanian S, Woolford CA, Drill E, Lu M, Jones EW

PBN1 was identified as a gene required for production of protease B (PrB) activity in Saccharomyces cerevisiae. PBN1 encodes an endoplasmic reticulum (ER)-localized, type I membrane glycoprotein and is essential for cell viability. To study the essential function(s) of Pbn1p, we constructed a strain with PBN1 under control of the GAL promoter. Depletion of Pbn1p in this strain abrogates processing ... [more]

Proc. Natl. Acad. Sci. U.S.A. Jan. 24, 2006; 103(4);939-44 [Pubmed: 16418276]

Throughput

  • Low Throughput

Ontology Terms

  • phenotype: inviable (APO:0000112)

Additional Notes

  • A pbn1-1 ero1-1 double mutant is nonviable.

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
PBN1 ERO1
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-0.2074BioGRID
1922259

Curated By

  • BioGRID