BAIT

PDI1

MFP1, TRG1, protein disulfide isomerase PDI1, L000001360, YCL043C
Protein disulfide isomerase; multifunctional protein of ER lumen, essential for formation of disulfide bonds in secretory and cell-surface proteins, unscrambles non-native disulfide bonds; key regulator of Ero1p; forms complex with Mnl1p that has exomannosidase activity, processing unfolded protein-bound Man8GlcNAc2 oligosaccharides to Man7GlcNAc2, promoting degradation in unfolded protein response; PDI1 has a paralog, EUG1, that arose from the whole genome duplication
GO Process (1)
GO Function (4)
GO Component (1)

Gene Ontology Biological Process

Gene Ontology Molecular Function

Gene Ontology Cellular Component

Saccharomyces cerevisiae (S288c)
PREY

PSR1

YLL010C
Plasma membrane associated protein phosphatase; involved in the general stress response; required along with binding partner Whi2p for full activation of STRE-mediated gene expression, possibly through dephosphorylation of Msn2p; PSR1 has a paralog, PSR2, that arose from the whole genome duplication
GO Process (1)
GO Function (1)
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

The unfolded protein response is necessary but not sufficient to compensate for defects in disulfide isomerization.

Kim JH, Zhao Y, Pan X, He X, Gilbert HF

Pdi1p (protein-disulfide isomerase) is a folding assistant of the endoplasmic reticulum (ER) that catalyzes disulfide formation and the isomerization of incorrect disulfides. Its disulfide forming activity is its essential function in Saccharomyces cerevisiae. A truncation mutant (Pdi1a') that is competent in disulfide formation but deficient in catalyzing isomerization has only a small effect on growth, although the maturation of isomerase-requiring ... [more]

J. Biol. Chem. Apr. 17, 2009; 284(16);10400-8 [Pubmed: 19233841]

Throughput

  • High Throughput

Ontology Terms

  • phenotype: inviable (APO:0000112)
  • phenotype: heat sensitivity (APO:0000147)

Additional Notes

  • diploid synthetic lethality array method (dSLAM)

Curated By

  • BioGRID