SIR2
Gene Ontology Biological Process
- chromatin silencing [IMP]
- chromatin silencing at centromere [IMP]
- chromatin silencing at silent mating-type cassette [IGI, IMP]
- chromatin silencing at telomere [IMP]
- histone H3 deacetylation [IDA]
- histone H3-K9 modification [IDA]
- histone H4 deacetylation [IDA]
- histone deacetylation [IDA]
- negative regulation of transcription from RNA polymerase II promoter [IEP]
- positive regulation of heterochromatin assembly [EXP]
- protein localization to chromosome, telomeric region [IMP]
- regulation of histone H3-K9 methylation [IMP]
Gene Ontology Molecular Function- NAD+ binding [IDA]
- NAD-dependent histone deacetylase activity (H3-K9 specific) [IDA]
- NAD-dependent histone deacetylase activity (H4-K16 specific) [IDA]
- histone deacetylase activity [IDA]
- histone deacetylase activity (H3-K14 specific) [IDA]
- histone deacetylase activity (H3-K4 specific) [IDA]
- histone deacetylase activity (H3-K9 specific) [IDA]
- histone deacetylase activity (H4-K16 specific) [IDA]
- NAD+ binding [IDA]
- NAD-dependent histone deacetylase activity (H3-K9 specific) [IDA]
- NAD-dependent histone deacetylase activity (H4-K16 specific) [IDA]
- histone deacetylase activity [IDA]
- histone deacetylase activity (H3-K14 specific) [IDA]
- histone deacetylase activity (H3-K4 specific) [IDA]
- histone deacetylase activity (H3-K9 specific) [IDA]
- histone deacetylase activity (H4-K16 specific) [IDA]
Gene Ontology Cellular Component
CLR3
Gene Ontology Biological Process
- chromatin silencing at centromere [IMP]
- chromatin silencing at rDNA [IMP]
- chromatin silencing at silent mating-type cassette [IMP]
- chromatin silencing at telomere [IMP]
- histone H3 deacetylation [IMP]
- histone deacetylation [IDA, IMP]
- maintenance of chromatin silencing at silent mating-type cassette [NAS]
- negative regulation of transcription from RNA polymerase II promoter [IGI, IMP]
- nucleosome positioning [IMP]
- regulation of histone methylation [IMP]
Gene Ontology Molecular Function
Gene Ontology Cellular Component
Synthetic Growth Defect
A genetic interaction is inferred when mutations in separate genes, each of which alone causes a minimal phenotype, result in a significant growth defect under a given condition when combined in the same cell.
Publication
Distinct roles for Sir2 and RNAi in centromeric heterochromatin nucleation, spreading and maintenance.
Epigenetically regulated heterochromatin domains govern essential cellular activities. A key feature of heterochromatin domains is the presence of hypoacetylated nucleosomes, which are methylated on lysine 9 of histone H3 (H3K9me). Here, we investigate the requirements for establishment, spreading and maintenance of heterochromatin using fission yeast centromeres as a paradigm. We show that establishment of heterochromatin on centromeric repeats is initiated ... [more]
Throughput
- Low Throughput
Ontology Terms
- phenotype: resistance to chemicals (APO:0000087)
- phenotype: vegetative growth (APO:0000106)
Additional Notes
- double mutants show increased sensitivity to TBZ CID: 5430 CHEBI: 45979
Related interactions
| Interaction | Experimental Evidence Code | Dataset | Throughput | Score | Curated By | Notes |
|---|---|---|---|---|---|---|
| SIR2 CLR3 | Negative Genetic Negative Genetic Mutations/deletions in separate genes, each of which alone causes a minimal phenotype, but when combined in the same cell results in a more severe fitness defect or lethality under a given condition. This term is reserved for high or low throughput studies with scores. | High | -3.2099 | BioGRID | 525629 | |
| CLR3 SIR2 | Phenotypic Enhancement Phenotypic Enhancement A genetic interaction is inferred when mutation or overexpression of one gene results in enhancement of any phenotype (other than lethality/growth defect) associated with mutation or over expression of another gene. | Low | - | BioGRID | 871652 | |
| SIR2 CLR3 | Phenotypic Enhancement Phenotypic Enhancement A genetic interaction is inferred when mutation or overexpression of one gene results in enhancement of any phenotype (other than lethality/growth defect) associated with mutation or over expression of another gene. | Low | - | BioGRID | 862519 |
Curated By
- BioGRID