BAIT

SEM1

DSS1, HOD1, proteasome regulatory particle lid subunit SEM1, L000003539, L000004647, YDR363W-A
Component of lid subcomplex of 26S proteasome regulatory subunit; involved in mRNA export mediated by TREX-2 complex (Sac3p-Thp1p); assumes different conformations in different contexts, functions as molecular glue stabilizing the Rpn3p/Rpn7p regulatory heterodimer, and tethers it to lid helical bundle; ortholog of human DSS1; protein abundance increases in response to DNA replication stress
Saccharomyces cerevisiae (S288c)
PREY

STS1

DBF8, SSM5, L000000489, YIR011C
Protein required for localizing proteasomes to the nucleus; involved in cotranslational protein degradation; mediates interaction between nuclear import factor Srp1p and the proteasome; Sts1p and Srp1p couple proteasomes to nascent polypeptides emerging from the ribosome for cotranslational degradation; involved in ubiquitin-mediated protein degradation
GO Process (3)
GO Function (0)
GO Component (1)
Saccharomyces cerevisiae (S288c)

Dosage Growth Defect

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

Publication

The Sts1 nuclear import adapter uses a non-canonical bipartite nuclear localization signal and is directly degraded by the proteasome.

Budenholzer L, Breckel C, Hickey CM, Hochstrasser M

The proteasome is an essential regulator of protein homeostasis. In yeast and many mammalian cells, proteasomes strongly concentrate in the nucleus. Sts1 from the yeast Saccharomyces cerevisiae is an essential protein linked to proteasome nuclear localization. Here, we show that Sts1 contains a non-canonical bipartite nuclear localization signal (NLS) important for both nuclear localization of Sts1 itself and the proteasome. ... [more]

J Cell Sci Dec. 19, 2019; 133(6); [Pubmed: 32041904]

Throughput

  • Low Throughput

Ontology Terms

  • vegetative growth (APO:0000106)

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
SEM1 STS1
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-0.3317BioGRID
2036577

Curated By

  • BioGRID