BAIT

POL2

DUN2, DNA polymerase epsilon catalytic subunit, L000001461, YNL262W
Catalytic subunit of DNA polymerase (II) epsilon; a chromosomal DNA replication polymerase that exhibits processivity and proofreading exonuclease activity; participates in leading-strand synthesis during DNA replication; also involved in DNA synthesis during DNA repair; interacts extensively with Mrc1p
Saccharomyces cerevisiae (S288c)
PREY

APN2

ETH1, DNA-(apurinic or apyrimidinic site) lyase APN2, L000004434, YBL019W
Class II abasic (AP) endonuclease involved in repair of DNA damage; homolog of human HAP1 and E. coli exoIII
GO Process (1)
GO Function (3)
GO Component (1)

Gene Ontology Biological Process

Gene Ontology Molecular Function

Gene Ontology Cellular Component

Saccharomyces cerevisiae (S288c)

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.

Publication

Apn2 resolves blocked 3' ends and suppresses Top1-induced mutagenesis at genomic rNMP sites.

Li F, Wang Q, Seol JH, Che J, Lu X, Shim EY, Lee SE, Niu H

Ribonucleoside monophosphates (rNMPs) mis-incorporated during DNA replication are removed by RNase H2-dependent excision repair or by topoisomerase I (Top1)-catalyzed cleavage. The cleavage of rNMPs by Top1 produces 3' ends harboring terminal adducts, such as 2',3'-cyclic phosphate or Top1 cleavage complex (Top1cc), and leads to frequent mutagenesis and DNA damage checkpoint induction. We surveyed a range of candidate enzymes from Saccharomyces ... [more]

Nat. Struct. Mol. Biol. Feb. 18, 2019; (); [Pubmed: 30778235]

Throughput

  • Low Throughput

Ontology Terms

  • phenotype: inviable (APO:0000112)

Additional Notes

  • apn2 is synthetic lethal in pol2-M644G/rnh201 cells
  • genetic complex

Curated By

  • BioGRID