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
GO Process (10)
GO Function (0)
GO Component (4)
Gene Ontology Biological Process
- SAGA complex localization to transcription regulatory region [IMP]
- exocytosis [IGI, IPI]
- filamentous growth [IMP]
- histone deubiquitination [IMP]
- mRNA export from nucleus [IGI, IMP, IPI]
- maintenance of DNA trinucleotide repeats [IMP]
- proteasome assembly [IMP]
- proteasome-mediated ubiquitin-dependent protein catabolic process [IDA, IMP]
- regulation of cell cycle [IMP]
- ubiquitin-dependent protein catabolic process [IMP]
Gene Ontology Cellular Component
Saccharomyces cerevisiae (S288c)
PREY
YRA1
SHE11, RNA-binding protein YRA1, L000002959, L000002873, YDR381W
Nuclear polyadenylated RNA-binding protein; required for export of poly(A)+ mRNA from the nucleus; proposed to couple mRNA export with 3' end processing via its interactions with Mex67p and Pcf11p; interacts with DBP2; inhibits the helicase activity of Dbp2; functionally redundant with Yra2p, another REF family member
GO Process (3)
GO Function (2)
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
Sem1 is a functional component of the nuclear pore complex-associated messenger RNA export machinery.
The evolutionarily conserved protein Sem1/Dss1 is a subunit of the regulatory particle (RP) of the proteasome, and, in mammalian cells, binds the tumor suppressor protein BRCA2. Here, we describe a new function for yeast Sem1. We show that sem1 mutants are impaired in messenger RNA (mRNA) export and transcription elongation, and induce strong transcription-associated hyper-recombination phenotypes. Importantly, Sem1, independent of ... [more]
J. Cell Biol. Mar. 23, 2009; 184(6);833-46 [Pubmed: 19289793]
Throughput
- Low Throughput
Ontology Terms
- phenotype: inviable (APO:0000112)
Curated By
- BioGRID