BAIT
DPB11
protein kinase activating protein DPB11, L000003001, YJL090C
DNA replication initiation protein; loads DNA pol epsilon onto pre-replication complexes at origins; checkpoint sensor recruited to stalled replication forks by the checkpoint clamp complex where it activates Mec1p; along with Rfa1p, binds to ultrafine anaphase bridges in mitotic cells and prevents accumulation of chromatin bridges by stimulating the Mec1p kinase and suppressing homologous recombination; ortholog of human TopBP1; forms nuclear foci upon DNA replication stress
GO Process (11)
GO Function (2)
GO Component (4)
Gene Ontology Biological Process
- DNA replication checkpoint [IMP]
- DNA replication initiation [IMP]
- double-strand break repair via break-induced replication [IMP]
- lagging strand elongation [TAS]
- leading strand elongation [TAS]
- mating type switching [IMP]
- mismatch repair [NAS]
- mitotic G2 DNA damage checkpoint [IGI]
- nucleotide-excision repair [TAS]
- positive regulation of protein phosphorylation [IDA]
- recombinational repair [IDA, IGI]
Gene Ontology Molecular Function
Gene Ontology Cellular Component
Saccharomyces cerevisiae (S288c)
PREY
RFA1
BUF2, FUN3, RPA1, RPA70, replication factor A subunit protein RFA1, L000000204, L000001620, YAR007C
Subunit of heterotrimeric Replication Protein A (RPA); RPA is a highly conserved single-stranded DNA binding protein involved in DNA replication, repair, and recombination; RPA protects against inappropriate telomere recombination, and upon telomere uncapping, prevents cell proliferation by a checkpoint-independent pathway; role in DNA catenation/decatenation pathway of chromosome disentangling; relocalizes to the cytosol in response to hypoxia
GO Process (14)
GO Function (4)
GO Component (6)
Gene Ontology Biological Process
- DNA repair [IMP]
- DNA replication [IMP]
- DNA topological change [IDA]
- DNA unwinding involved in DNA replication [IDA]
- double-strand break repair via homologous recombination [IGI]
- establishment of protein localization [IPI]
- heteroduplex formation [IDA]
- mitotic recombination [IMP]
- nucleotide-excision repair [IDA]
- protein ubiquitination [IMP, IPI]
- reciprocal meiotic recombination [IMP]
- telomere maintenance via recombination [IGI]
- telomere maintenance via telomerase [IPI]
- telomere maintenance via telomere lengthening [IMP]
Gene Ontology Molecular Function
Gene Ontology Cellular Component
Saccharomyces cerevisiae (S288c)
Reconstituted Complex
An interaction is detected between purified proteins in vitro.
Publication
Dpb11 may function with RPA and DNA to initiate DNA replication.
Dpb11 is required for the initiation of DNA replication in budding yeast. We found that Dpb11 binds tightly to single-stranded DNA (ssDNA) or branched DNA structures, while its human homolog, TopBP1, binds tightly to branched-DNA structures. We also found that Dpb11 binds stably to CDK-phosphorylated RPA, the eukaryotic ssDNA binding protein, in the presence of branched DNA. A Dpb11 mutant ... [more]
PLoS ONE May. 04, 2017; 12(5);e0177147 [Pubmed: 28467467]
Throughput
- Low Throughput
Related interactions
| Interaction | Experimental Evidence Code | Dataset | Throughput | Score | Curated By | Notes |
|---|---|---|---|---|---|---|
| DPB11 RFA1 | 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 | -0.3587 | BioGRID | 1939186 |
Curated By
- BioGRID