BAIT

TOP2

TOR3, TRF3, DNA topoisomerase 2, L000002320, YNL088W
Topoisomerase II; relieves torsional strain in DNA by cleaving and re-sealing the phosphodiester backbone of both positively and negatively supercoiled DNA; cleaves complementary strands; localizes to axial cores in meiosis; required for replication slow zone (RSZ) breakage following Mec1p inactivation
Saccharomyces cerevisiae (S288c)
PREY

FOB1

HRM1, replication fork barrier binding protein FOB1, L000003959, YDR110W
Nucleolar protein that binds the rDNA replication fork barrier site; required for replication fork blocking, recombinational hotspot activity, condensin recruitment to replication fork barrier (RFB), and rDNA repeat segregation; related to retroviral integrases
Saccharomyces cerevisiae (S288c)

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.

Publication

Top2 and Sgs1-Top3 Act Redundantly to Ensure rDNA Replication Termination.

Mundbjerg K, Jorgensen SW, Fredsoe J, Nielsen I, Pedersen JM, Bentsen IB, Lisby M, Bjergbaek L, Andersen AH

Faithful DNA replication with correct termination is essential for genome stability and transmission of genetic information. Here we have investigated the potential roles of Topoisomerase II (Top2) and the RecQ helicase Sgs1 during late stages of replication. We find that cells lacking Top2 and Sgs1 (or Top3) display two different characteristics during late S/G2 phase, checkpoint activation and accumulation of ... [more]

PLoS Genet. Dec. 01, 2015; 11(12);e1005697 [Pubmed: 26630413]

Throughput

  • Low Throughput

Ontology Terms

  • phenotype: protein/peptide modification (APO:0000131)

Additional Notes

  • Figure 2D
  • checkpoint activation
  • genetic complex
  • sgs1 top2-ts defect is FOB1-dependent

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
TOP2 FOB1
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-0.1722BioGRID
2008811

Curated By

  • BioGRID