BAIT

SGS1

ATP-dependent DNA helicase SGS1, L000001877, YMR190C
RecQ family nucleolar DNA helicase; role in genome integrity maintenance; regulates chromosome synapsis and meiotic joint molecule/crossover formation; stimulates DNA catenation/decatenation activity of Top3p; potential repressor of a subset of rapamycin responsive genes; rapidly lost in response to rapamycin in Rrd1p-dependent manner; similar to human BLM and WRN proteins implicated in Bloom and Werner syndromes; forms nuclear foci upon DNA replication stress
Saccharomyces cerevisiae (S288c)
PREY

SIZ1

ULL1, SUMO ligase SIZ1, S000007589, YDR409W
SUMO/Smt3 ligase; promotes attachment of small ubiquitin-related modifier sumo (Smt3p) to proteins; regulates Rsp5p ubiquitin ligase activity and is in turn itself regulated by Rsp5p; binds Ubc9p and may bind septins; specifically required for sumoylation of septins in vivo; localized to the septin ring; SIZ1 has a paralog, NFI1, that arose from the whole genome duplication
GO Process (3)
GO Function (1)
GO Component (2)

Gene Ontology Biological Process

Gene Ontology Molecular Function

Gene Ontology Cellular Component

Saccharomyces cerevisiae (S288c)

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.

Publication

Sgs1 helicase is required for efficient PCNA monoubiquitination and translesion DNA synthesis in Saccharomyces cerevisiae.

Li F, Ball LG, Fan L, Hanna M, Xiao W

DNA-damage tolerance (DDT) is employed by eukaryotes to deal with replication blocks on the template strand, and is divided into two parallel pathways that are activated by sequential ubiquitination of proliferating cell nuclear antigen (PCNA) at the Lys164 residue. Rad6-Rad18-mediated PCNA monoubiquitination promotes translesion DNA synthesis (TLS) and the monoubiquitinated PCNA can be further polyubiquitinated by an Mms2-Ubc13-Rad5 complex, leading ... [more]

Curr. Genet. Sep. 16, 2017; (); [Pubmed: 28918480]

Throughput

  • Low Throughput

Ontology Terms

  • phenotype: resistance to chemicals (APO:0000087)

Additional Notes

  • double mutants show increased sensitivity to DNA damaging agents

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
SGS1 SIZ1
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-BioGRID
2896079
SGS1 SIZ1
Synthetic Growth Defect
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.

Low-BioGRID
855732
SGS1 SIZ1
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-BioGRID
239667

Curated By

  • BioGRID