BAIT

KAR2

GRP78, Hsp70 family ATPase KAR2, BIP, L000000887, YJL034W
ATPase involved in protein import into the ER; also acts as a chaperone to mediate protein folding in the ER and may play a role in ER export of soluble proteins; regulates the unfolded protein response via interaction with Ire1p
UPS Project
Saccharomyces cerevisiae (S288c)
PREY

VPS52

SAC2, L000001791, YDR484W
Component of the GARP (Golgi-associated retrograde protein) complex; GARP is required for the recycling of proteins from endosomes to the late Golgi, and for mitosis after DNA damage induced checkpoint arrest; involved in localization of actin and chitin; members of the GARP complex are Vps51p-Vps52p-Vps53p-Vps54p
GO Process (3)
GO Function (1)
GO Component (2)

Gene Ontology Biological Process

Gene Ontology Molecular Function

Gene Ontology Cellular Component

Saccharomyces cerevisiae (S288c)

Positive Genetic

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

Publication

J domain co-chaperone specificity defines the role of BiP during protein translocation.

Vembar SS, Jonikas MC, Hendershot LM, Weissman JS, Brodsky JL

Hsp70 chaperones can potentially interact with one of several J domain-containing Hsp40 co-chaperones to regulate distinct cellular processes. However, features within Hsp70s that determine Hsp40 specificity are undefined. To investigate this question, we introduced mutations into the ER-lumenal Hsp70, BiP/Kar2p, and found that an R217A substitution in the J domain-interacting surface of BiP compromised the physical and functional interaction with ... [more]

J. Biol. Chem. Jul. 16, 2010; 285(29);22484-94 [Pubmed: 20430885]

Quantitative Score

  • 3.1714 [SGA Score]

Throughput

  • High Throughput

Ontology Terms

  • phenotype: protein/peptide accumulation (APO:0000149)

Additional Notes

  • Kar2-DAmP allele, double mutant shows a synthetic effect in UPR response

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
VPS52 KAR2
Affinity Capture-MS
Affinity Capture-MS

An interaction is inferred when a bait protein is affinity captured from cell extracts by either polyclonal antibody or epitope tag and the associated interaction partner is identified by mass spectrometric methods.

High-BioGRID
-
VPS52 KAR2
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-0.1693BioGRID
2037705

Curated By

  • BioGRID