BAIT
DOA4
DOS1, MUT4, NPI2, SSV7, UBP4, L000000514, YDR069C
Ubiquitin hydrolase; deubiquitinates intralumenal vesicle (ILVs) cargo proteins; required for recycling ubiquitin from proteasome-bound ubiquitinated intermediates, acts at the late endosome/prevacuolar compartment to recover ubiquitin from ubiquitinated membrane proteins destined for the vacuole; DOA4 has a paralog, UBP5, that arose from the whole genome duplication
GO Process (7)
GO Function (1)
GO Component (3)
Gene Ontology Biological Process
- endocytosis [IMP]
- free ubiquitin chain depolymerization [IDA]
- intralumenal vesicle formation [IGI]
- regulation of DNA replication [IMP]
- ubiquitin homeostasis [IMP]
- ubiquitin-dependent protein catabolic process [IMP]
- ubiquitin-dependent protein catabolic process via the multivesicular body sorting pathway [IMP]
Gene Ontology Molecular Function
Gene Ontology Cellular Component
Saccharomyces cerevisiae (S288c)
PREY
RAD9
chromatin-binding protein RAD9, L000001562, YDR217C
DNA damage-dependent checkpoint protein; required for cell-cycle arrest in G1/S, intra-S, and G2/M, plays a role in postreplication repair (PRR) pathway; transmits checkpoint signal by activating Rad53p and Chk1p; hyperphosphorylated by Mec1p and Tel1p; multiple cyclin dependent kinase consensus sites and the C-terminal BRCT domain contribute to DNA damage checkpoint activation; Rad9p Chk1 Activating Domain (CAD) is phosphorylated at multiple sites by Cdc28p/Clb2p
GO Process (8)
GO Function (3)
GO Component (2)
Gene Ontology Biological Process
Gene Ontology Molecular Function
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
The deubiquitinating enzyme Doa4p protects cells from DNA topoisomerase I poisons.
DNA topoisomerase I (Top1p) catalyzes changes in DNA topology via the formation of an enzyme-DNA covalent complex that is reversibly stabilized by the antitumor drug, camptothecin (CPT). During S-phase, collisions with replication forks convert these complexes into cytotoxic DNA lesions that trigger cell cycle arrest and cell death. To investigate cellular responses to CPT-induced DNA damage, a yeast genetic screen ... [more]
J. Biol. Chem. May. 14, 2004; 279(20);21271-81 [Pubmed: 14990574]
Throughput
- Low Throughput
Ontology Terms
- resistance to chemicals (APO:0000087)
Additional Notes
- in presence of camptothecin
Related interactions
Curated By
- BioGRID