BAIT
RRP6
exosome nuclease subunit RRP6, L000003540, YOR001W
Nuclear exosome exonuclease component; has 3'-5' exonuclease activity that is regulated by Lrp1p; involved in RNA processing, maturation, surveillance, degradation, tethering, and export; role in sn/snoRNAs precursor degradation; forms a stable heterodimer with Lrp1p; has similarity to E. coli RNase D and to human PM-Sc1 100 (EXOSC10); mutant displays reduced transcription elongation in the G-less-based
GO Process (16)
GO Function (1)
GO Component (3)
Gene Ontology Biological Process
- U1 snRNA 3'-end processing [IGI, IMP]
- U4 snRNA 3'-end processing [IGI, IMP]
- U5 snRNA 3'-end processing [IGI, IMP]
- exonucleolytic trimming to generate mature 3'-end of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) [IMP]
- histone mRNA catabolic process [IMP]
- nuclear polyadenylation-dependent CUT catabolic process [IGI, IMP]
- nuclear polyadenylation-dependent antisense transcript catabolic process [IMP]
- nuclear polyadenylation-dependent mRNA catabolic process [IMP]
- nuclear polyadenylation-dependent rRNA catabolic process [IGI, IMP]
- nuclear polyadenylation-dependent snRNA catabolic process [IMP]
- nuclear polyadenylation-dependent snoRNA catabolic process [IMP]
- nuclear polyadenylation-dependent tRNA catabolic process [IDA, IGI]
- nuclear retention of pre-mRNA at the site of transcription [IGI]
- nuclear retention of pre-mRNA with aberrant 3'-ends at the site of transcription [IGI]
- polyadenylation-dependent snoRNA 3'-end processing [IMP]
- posttranscriptional tethering of RNA polymerase II gene DNA at nuclear periphery [IMP]
Gene Ontology Molecular Function
Saccharomyces cerevisiae (S288c)
PREY
RAI1
S000007430, YGL246C
Nuclear protein with decapping endonuclease activity; targets mRNAs with unmethylated 7-methylguanosine cap structures and 5'-triphosphates; binds to and stabilizes the exoribonuclease Rat1p; required for pre-rRNA processing; relocalizes to the cytosol in response to hypoxia; homologous to human DOM3Z
GO Process (6)
GO Function (3)
GO Component (2)
Gene Ontology Biological Process
- deadenylation-independent decapping of nuclear-transcribed mRNA [IDA]
- maturation of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) [IMP]
- maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) [IMP]
- nuclear polyadenylation-dependent rRNA catabolic process [IMP]
- nuclear-transcribed mRNA catabolic process [IMP]
- termination of RNA polymerase II transcription, poly(A)-coupled [IMP]
Gene Ontology Molecular Function
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
Rat1p and Rai1p function with the nuclear exosome in the processing and degradation of rRNA precursors.
Exoribonucleases function in the processing and degradation of a variety of RNAs in all organisms. These enzymes play a particularly important role in the maturation of rRNAs and in a quality-control pathway that degrades rRNA precursors upon inhibition of ribosome biogenesis. Strains with defects in 3'-5' exoribonucleolytic components of the RNA processing exosome accumulate polyadenylated precursor rRNAs that also arise ... [more]
RNA Oct. 01, 2005; 11(10);1571-8 [Pubmed: 16131592]
Throughput
- Low Throughput
Ontology Terms
- phenotype: inviable (APO:0000112)
Curated By
- BioGRID