BAIT

YKU70

HDF1, NES24, KU70, L000000759, YMR284W
Subunit of the telomeric Ku complex (Yku70p-Yku80p); involved in telomere length maintenance, structure and telomere position effect; required for localization of telomerase ribonucleoprotein to nucleus via interaction with the TLC1 guide RNA; relocates to sites of double-strand cleavage to promote nonhomologous end joining during DSB repair
Saccharomyces cerevisiae (S288c)
PREY

MRC1

YCL060C, chromatin-modulating protein MRC1, YCL061C
S-phase checkpoint protein required for DNA replication; couples DNA helicase and DNA polymerase; interacts with and stabilizes Pol2p at stalled replication forks during stress, where it forms a pausing complex with Tof1p and is phosphorylated by Mec1p; with Hog1p defines a novel S-phase checkpoint that permits eukaryotic cells to prevent conflicts between DNA replication and transcription; protects uncapped telomeres; degradation via Dia2p help cells resume cell cycle
Saccharomyces cerevisiae (S288c)

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.

Publication

Mrc1, a non-essential DNA replication protein, is required for telomere end protection following loss of capping by Cdc13, Yku or telomerase.

Grandin N, Charbonneau M

Proteins involved in telomere end protection have previously been identified. In Saccharomyces cerevisiae, Cdc13, Yku and telomerase, mainly, prevent telomere uncapping, thus providing telomere stability and avoiding degradation and death by senescence. Here, we report that in the absence of Mrc1, a component of the replication forks, telomeres of cdc13 or yku70 mutants exhibited increased degradation, while telomerase-negative cells displayed ... [more]

Mol. Genet. Genomics Jun. 01, 2007; 277(6);685-99 [Pubmed: 17323081]

Throughput

  • Low Throughput

Ontology Terms

  • phenotype: vegetative growth (APO:0000106)
  • phenotype: heat sensitivity (APO:0000147)

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
YKU70 MRC1
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-0.6684BioGRID
809126
YKU70 MRC1
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
239814

Curated By

  • BioGRID