Dna2 is a DNA replication factor with single-stranded DNA-dependent ATPase, ATP-dependent nuclease, ( 5'-flap endonuclease) and helicase activities. It is required for Okazaki fragment processing and is involved in DNA repair pathways [1].

1: Genetic analyses of Schizosaccharomyces pombe dna2(+) reveal that dna2 plays an essential role in Okazaki fragment metabolism. Kang HY, Choi E, Bae SH, Lee KH, Gim BS, Kim HD, Park C, MacNeill SA, Seo YS; Genetics. 2000;155:1055-1067. PMID:10880469