BAIT

IRC25

DMP2, PBA3, POC3, YLR021W
Component of a heterodimeric Poc4p-Irc25p chaperone; involved in assembly of alpha subunits into the 20S proteasome; may regulate formation of proteasome isoforms with alternative subunits under different conditions
UPS Project
GO Process (3)
GO Function (0)
GO Component (1)

Gene Ontology Biological Process

Gene Ontology Cellular Component

Saccharomyces cerevisiae (S288c)
PREY

PRE10

proteasome core particle subunit alpha 7, L000003146, YOR362C
Alpha 7 subunit of the 20S proteasome; protein abundance increases in response to DNA replication stress
UPS Project
Saccharomyces cerevisiae (S288c)

Synthetic Rescue

A genetic interaction is inferred when mutations or deletions of one gene rescues the lethality or growth defect of a strain mutated or deleted for another gene.

Publication

A multimeric assembly factor controls the formation of alternative 20S proteasomes.

Kusmierczyk AR, Kunjappu MJ, Funakoshi M, Hochstrasser M

The proteasome is the central regulatory protease of eukaryotic cells. Heteroheptameric alpha-subunit and beta-subunit rings stack to form the 20S proteasome, which associates with a 19S regulatory particle (RP). Here we show that two yeast proteins, Pba3 and Pba4, form a previously unidentified 20S proteasome-assembly chaperone. Pba3-Pba4 interacts genetically and physically with specific proteasomal alpha subunits, and loss of Pba3-Pba4 ... [more]

Nat. Struct. Mol. Biol. Mar. 01, 2008; 15(3);237-44 [Pubmed: 18278055]

Throughput

  • Low Throughput

Ontology Terms

  • phenotype: viability (APO:0000111)

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
PRE10 IRC25
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-0.1621BioGRID
2019845

Curated By

  • BioGRID