BAIT
HST4
L000003043, YDR191W
Member of the Sir2 family of NAD(+)-dependent protein deacetylases; involved along with Hst3p in silencing at telomeres, cell cycle progression, radiation resistance, genomic stability and short-chain fatty acid metabolism
GO Process (3)
GO Function (1)
GO Component (2)
Gene Ontology Biological Process
Gene Ontology Molecular Function
Saccharomyces cerevisiae (S288c)
PREY
MRE11
NGS1, RAD58, XRS4, MRX complex nuclease subunit, L000004732, L000001149, L000004275, YMR224C
Nuclease subunit of the MRX complex with Rad50p and Xrs2p; complex functions in repair of DNA double-strand breaks and in telomere stability; Mre11p associates with Ser/Thr-rich ORFs in premeiotic phase; nuclease activity required for MRX function; widely conserved; forms nuclear foci upon DNA replication stress
GO Process (11)
GO Function (9)
GO Component (3)
Gene Ontology Biological Process
- DNA double-strand break processing involved in repair via synthesis-dependent strand annealing [IMP]
- DNA repair [IMP]
- ascospore formation [IMP]
- base-excision repair [IMP]
- double-strand break repair via break-induced replication [IGI, IMP]
- double-strand break repair via nonhomologous end joining [IMP]
- meiotic DNA double-strand break formation [TAS]
- meiotic DNA double-strand break processing [TAS]
- mitochondrial double-strand break repair via homologous recombination [IMP]
- reciprocal meiotic recombination [IMP]
- regulation of transcription during meiosis [IMP]
Gene Ontology Molecular Function- 3'-5' exonuclease activity [IDA]
- G-quadruplex DNA binding [IDA]
- adenylate kinase activity [IDA]
- double-stranded telomeric DNA binding [IDA]
- endodeoxyribonuclease activity [IDA]
- endonuclease activity [IDA]
- protein complex scaffold [IGI, IMP]
- single-stranded telomeric DNA binding [IDA]
- telomeric DNA binding [IDA]
- 3'-5' exonuclease activity [IDA]
- G-quadruplex DNA binding [IDA]
- adenylate kinase activity [IDA]
- double-stranded telomeric DNA binding [IDA]
- endodeoxyribonuclease activity [IDA]
- endonuclease activity [IDA]
- protein complex scaffold [IGI, IMP]
- single-stranded telomeric DNA binding [IDA]
- telomeric DNA binding [IDA]
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
Histone H3 K56 hyperacetylation perturbs replisomes and causes DNA damage.
Deacetylation of histone H3 K56, regulated by the sirtuins Hst3p and Hst4p, is critical for maintenance of genomic stability. However, the physiological consequences of a lack of H3 K56 deacetylation are poorly understood. Here we show that cells lacking Hst3p and Hst4p, in which H3 K56 is constitutively hyperacetylated, exhibit hallmarks of spontaneous DNA damage, such as activation of the ... [more]
Genetics Aug. 01, 2008; 179(4);1769-84 [Pubmed: 18579506]
Throughput
- Low Throughput
Ontology Terms
- phenotype: inviable (APO:0000112)
Additional Notes
- deletion is lethal in a hst3/hst4 mutant background
- genetic complex
Curated By
- BioGRID