TOP2
Gene Ontology Biological Process
- DNA strand elongation involved in mitotic DNA replication [ISO]
- DNA topological change [IDA, IGI, IMP]
- chromatin organization [IGI]
- mitotic chromosome condensation [IMP]
- resolution of meiotic recombination intermediates [IMP]
- transcription of nuclear large rRNA transcript from RNA polymerase I promoter [IGI]
Gene Ontology Molecular Function
Gene Ontology Cellular Component
CHK1
Gene Ontology Biological Process
- mitotic DNA damage checkpoint [IGI]
- mitotic G2 DNA damage checkpoint [IMP]
- negative regulation of transcription from RNA polymerase II promoter by transcription factor localization involved in response to DNA damage checkpoint signaling [IMP]
- peptidyl-serine phosphorylation [IDA]
- signal transduction involved in DNA damage checkpoint [IMP]
Gene Ontology Molecular Function
Gene Ontology Cellular Component
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
DNA topoisomerase 2 mutant allele mildly delays the mitotic progression and activates the checkpoint protein kinase Chk1 in fission yeast Schizosaccharomyces pombe.
SummaryDNA topoisomerases are specialized nuclear enzymes that perform topological modifications on double-stranded DNA (dsDNA) and hence are essential for DNA metabolism such as replication, transcription, recombination, condensation and segregation. In a genetic screen, we identified a temperature-sensitive mutant allele of topoisomerase 2 that exhibits conditional synthetic lethality with a chk1 knockout strain. The mutant allele of topoisomerase 2 is defective ... [more]
Throughput
- Low Throughput
Ontology Terms
- phenotype: survival rate in stationary phase (APO:0000109)
Additional Notes
- survival after arrest in G2
Related interactions
| Interaction | Experimental Evidence Code | Dataset | Throughput | Score | Curated By | Notes |
|---|---|---|---|---|---|---|
| CHK1 TOP2 | 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. | High | - | BioGRID | 557157 | |
| TOP2 CHK1 | Phenotypic Suppression Phenotypic Suppression A genetic interaction is inferred when mutation or over expression of one gene results in suppression of any phenotype (other than lethality/growth defect) associated with mutation or over expression of another gene. | Low | - | BioGRID | 557163 | |
| CHK1 TOP2 | Synthetic Lethality 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. | Low/High | - | BioGRID | 557148 |
Curated By
- BioGRID