BAIT
CYC8
CRT8, SSN6, transcription regulator CYC8, [OCT], [OCT1+], L000000452, YBR112C
General transcriptional co-repressor; acts together with Tup1p; also acts as part of a transcriptional co-activator complex that recruits the SWI/SNF and SAGA complexes to promoters; can form the prion [OCT+]
GO Process (7)
GO Function (3)
GO Component (2)
Gene Ontology Biological Process
- chromatin remodeling [IGI]
- negative regulation of dipeptide transport by negative regulation of transcription from RNA polymerase II promoter [IMP]
- negative regulation of transcription from RNA polymerase II promoter [IMP]
- negative regulation of transcription from RNA polymerase II promoter during mitosis [IMP]
- nucleosome positioning [IDA]
- regulation of fatty acid biosynthetic process by regulation of transcription from RNA polymerase II promoter [IMP]
- regulation of response to DNA damage stimulus [IMP]
Gene Ontology Molecular Function- RNA polymerase II transcription factor binding transcription factor activity involved in negative regulation of transcription [IDA, IPI]
- RNA polymerase II transcription factor binding transcription factor activity involved in positive regulation of transcription [IDA, IGI, IPI]
- histone deacetylase binding [IDA]
- RNA polymerase II transcription factor binding transcription factor activity involved in negative regulation of transcription [IDA, IPI]
- RNA polymerase II transcription factor binding transcription factor activity involved in positive regulation of transcription [IDA, IGI, IPI]
- histone deacetylase binding [IDA]
Gene Ontology Cellular Component
Saccharomyces cerevisiae (S288c)
PREY
SIN3
CPE1, GAM2, RPD1, SDI1, SDS16, UME4, transcriptional regulator SIN3, L000001695, YOL004W
Component of both the Rpd3S and Rpd3L histone deacetylase complexes; involved in transcriptional repression and activation of diverse processes, including mating-type switching and meiosis; involved in the maintenance of chromosomal integrity
GO Process (13)
GO Function (2)
GO Component (4)
Gene Ontology Biological Process
- double-strand break repair via nonhomologous end joining [IMP]
- histone deacetylation [IMP]
- negative regulation of chromatin silencing at rDNA [IMP]
- negative regulation of chromatin silencing at silent mating-type cassette [IMP]
- negative regulation of chromatin silencing at telomere [IMP]
- negative regulation of transcription during meiosis [IMP]
- negative regulation of transcription from RNA polymerase I promoter [IMP]
- negative regulation of transcription from RNA polymerase II promoter [IMP]
- positive regulation of transcription from RNA polymerase II promoter [IMP]
- positive regulation of transcription from RNA polymerase II promoter in response to heat stress [IMP]
- regulation of DNA-dependent DNA replication initiation [IMP]
- regulation of transcription involved in G2/M transition of mitotic cell cycle [IGI]
- transfer RNA gene-mediated silencing [IMP]
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
Pleiotropic corepressors Sin3 and Ssn6 interact with repressor Opi1 and negatively regulate transcription of genes required for phospholipid biosynthesis in the yeast Saccharomyces cerevisiae.
Repressor protein Opi1 is required to negatively regulate yeast structural genes of phospholipid biosynthesis in the presence of precursor molecules inositol and choline (IC). Opi1 interacts with the paired amphipathic helix 1 (PAH1) of pleiotropic corepressor Sin3, leading to recruitment of histone deacetylases (HDACs). Mutational analysis of the Opi1-Sin3 interaction domain (OSID) revealed that hydrophobic OSID residues L56, V59 and ... [more]
Mol. Genet. Genomics Nov. 23, 2010; 0(0); [Pubmed: 21104417]
Throughput
- Low Throughput
Ontology Terms
- phenotype: inviable (APO:0000112)
Curated By
- BioGRID