BAIT
PRP38
L000001510, YGR075C
Unique component of the U4/U6.U5 tri-snRNP particle; tri-snRNP is required for conformational changes which result in the catalytic activation of the spliceosome; dispensable for spliceosome assembly
GO Process (1)
GO Function (0)
GO Component (1)
Gene Ontology Biological Process
Gene Ontology Cellular Component
Saccharomyces cerevisiae (S288c)
PREY
PRP43
DEAH-box ATP-dependent RNA helicase PRP43, JA1, L000003359, YGL120C
RNA helicase in the DEAH-box family; functions in both RNA polymerase I and polymerase II transcript metabolism; catalyzes removal of U2, U5, and U6 snRNPs from the postsplicing lariat-intron ribonucleoprotein complex; required for efficient biogenesis of both small- and large-subunit rRNAs; acts with Sqs1p to promote 20S to 18S rRNA processing catalyzed by endonuclease Nob1p
GO Process (7)
GO Function (2)
GO Component (3)
Gene Ontology Biological Process
- 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]
- maturation of SSU-rRNA [IGI]
- maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) [IMP]
- rRNA processing [IMP]
- ribosomal large subunit biogenesis [IMP]
- spliceosomal complex disassembly [IDA, IGI]
Gene Ontology Molecular Function
Gene Ontology Cellular Component
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
Inhibition of a spliceosome turnover pathway suppresses splicing defects.
Defects in assembly are suggested to signal the dissociation of faulty splicing complexes. A yeast genetic screen was performed to identify components of the putative discard pathway. Weak mutant alleles of SPP382 (also called NTR1) were found to suppress defects in two proteins required for spliceosome activation, Prp38p and Prp8p. Spp382p is shown necessary for cellular splicing, with premRNA and, ... [more]
Proc. Natl. Acad. Sci. U.S.A. Sep. 12, 2006; 103(37);13700-5 [Pubmed: 16945917]
Throughput
- Low Throughput
Ontology Terms
- phenotype: vegetative growth (APO:0000106)
Related interactions
| Interaction | Experimental Evidence Code | Dataset | Throughput | Score | Curated By | Notes |
|---|---|---|---|---|---|---|
| PRP38 PRP43 | Dosage Lethality Dosage Lethality A genetic interaction is inferred when over expression or increased dosage of one gene causes lethality in a strain that is mutated or deleted for another gene. | Low | - | BioGRID | 351810 |
Curated By
- BioGRID