BAIT
AIR1
S000028413, YIL079C
Zinc knuckle protein; involved in nuclear RNA processing and degradation as a component of the TRAMP complex; stimulates the poly(A) polymerase activity of Pap2p in vitro; AIR1 has a paralog, AIR2, that arose from the whole genome duplication; although Air1p and Air2p are homologous TRAMP subunits, they have nonredundant roles in regulation of substrate specificity of the exosome
GO Process (7)
GO Function (1)
GO Component (2)
Gene Ontology Biological Process
- ncRNA polyadenylation [IDA]
- nuclear mRNA surveillance of mRNA 3'-end processing [IGI]
- nuclear polyadenylation-dependent CUT catabolic process [IGI]
- nuclear polyadenylation-dependent rRNA catabolic process [IGI]
- nuclear polyadenylation-dependent snRNA catabolic process [IGI]
- nuclear polyadenylation-dependent snoRNA catabolic process [IGI]
- nuclear polyadenylation-dependent tRNA catabolic process [IDA]
Gene Ontology Molecular Function
Gene Ontology Cellular Component
Saccharomyces cerevisiae (S288c)
PREY
ISW1
SGN2, chromatin-remodeling ATPase ISW1, L000004447, YBR245C
ATPase subunit of imitation-switch (ISWI) class chromatin remodelers; with Ioc3p forms Isw1a complex involved in repression of transcription initiation; with Ioc2p and Ioc4p forms Isw1b complex involved in regulation of transcription elongation; Isw1b recruited to ORFs by H3K36 methylation and acts with Chd1p to prevent trans-histone exchange over coding regions; Isw1p import into nucleus depends on C-terminal bipartite nuclear targeting signal KRIR X19 KKAK
GO Process (11)
GO Function (4)
GO Component (4)
Gene Ontology Biological Process
- DNA-templated transcription, elongation [IDA, IMP]
- chromatin organization involved in regulation of transcription [IMP]
- chromatin remodeling [IGI, IMP, IPI]
- heterochromatin maintenance involved in chromatin silencing [IGI, IMP]
- negative regulation of histone exchange [IMP]
- nucleosome positioning [IGI, IMP]
- positive regulation of transcription from RNA polymerase II promoter [IMP]
- regulation of chromatin organization [IMP]
- regulation of transcriptional start site selection at RNA polymerase II promoter [IGI]
- termination of RNA polymerase I transcription [IGI]
- termination of RNA polymerase II transcription [IGI]
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
A yeast exosome cofactor, Mpp6, functions in RNA surveillance and in the degradation of noncoding RNA transcripts.
A genome-wide screen for synthetic lethal (SL) interactions with loss of the nuclear exosome cofactors Rrp47/Lrp1 or Air1 identified 3'-->5' exonucleases, the THO complex required for mRNP assembly, and Ynr024w (Mpp6). SL interactions with mpp6Delta were confirmed for rrp47Delta and nuclear exosome component Rrp6. The results of bioinformatic analyses revealed homology between Mpp6 and a human exosome cofactor, underlining the ... [more]
Mol. Cell. Biol. Sep. 01, 2008; 28(17);5446-57 [Pubmed: 18591258]
Throughput
- Low Throughput
Ontology Terms
- phenotype: inviable (APO:0000112)
Curated By
- BioGRID