BAIT

SSB2

YG103, Hsp70 family ATPase SSB2, L000002715, YNL209W
Cytoplasmic ATPase that is a ribosome-associated molecular chaperone; functions with J-protein partner Zuo1p; may be involved in the folding of newly-synthesized polypeptide chains; member of the HSP70 family; SSB2 has a paralog, SSB1, that arose from the whole genome duplication
Saccharomyces cerevisiae (S288c)
PREY

JJJ1

YNL227C
Co-chaperone that stimulates the ATPase activity of Ssa1p; required for a late step of ribosome biogenesis; associated with the cytosolic large ribosomal subunit; contains a J-domain; mutation causes defects in fluid-phase endocytosis
Saccharomyces cerevisiae (S288c)

Dosage Rescue

A genetic interaction is inferred when over expression or increased dosage of one gene rescues the lethality or growth defect of a strain that is mutated or deleted for another gene.

Publication

A ribosome-anchored chaperone network that facilitates eukaryotic ribosome biogenesis.

Albanese V, Reissmann S, Frydman J

Molecular chaperones assist cellular protein folding as well as oligomeric complex assembly. In eukaryotic cells, several chaperones termed chaperones linked to protein synthesis (CLIPS) are transcriptionally and physically linked to ribosomes and are implicated in protein biosynthesis. In this study, we show that a CLIPS network comprising two ribosome-anchored J-proteins, Jjj1 and Zuo1, function together with their partner Hsp70 proteins ... [more]

J. Cell Biol. Apr. 05, 2010; 189(1);69-81 [Pubmed: 20368619]

Throughput

  • Low Throughput

Ontology Terms

  • phenotype: vegetative growth (APO:0000106)

Additional Notes

  • Overexpression of JJJ1 rescues growth in an SSB1/SSB2 double mutant

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
SSB2 JJJ1
Synthetic Lethality
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.

Low-BioGRID
438591

Curated By

  • BioGRID