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
Saccharomyces cerevisiae (S288c)
PREY

DOT1

PCH1, histone methyltransferase DOT1, KMT4, L000004390, L000004273, YDR440W
Nucleosomal histone H3-Lys79 methylase; methylation is required for telomeric silencing, meiotic checkpoint control, and DNA damage response
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

Dpb11 coordinates Mec1 kinase activation with cell cycle-regulated Rad9 recruitment.

Pfander B, Diffley JF

Eukaryotic cells respond to DNA damage by activating checkpoint signalling pathways. Checkpoint signals are transduced by a protein kinase cascade that also requires non-kinase mediator proteins. One such mediator is the Saccharomyces cerevisiae Dpb11 protein, which binds to and activates the apical checkpoint kinase, Mec1. Here, we show that a ternary complex of Dpb11, Mec1 and another key mediator protein ... [more]

Unknown Sep. 23, 2011; 0(0); [Pubmed: 21946560]

Throughput

  • Low Throughput

Ontology Terms

  • phenotype: cell cycle progression through the g2/m phase transition (APO:0000257)

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
DPB11 DOT1
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-0.1604BioGRID
1992966
DPB11 DOT1
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
567442
DOT1 DPB11
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
334171

Curated By

  • BioGRID