This family contains OB-fold domains that bind to nucleic acids. The family includes a domain found in Cell division control protein 24 (Cdc24). Cdc24 plays an essential role in the progression of normal DNA replication and is required to maintain genomic integrity [1]. Cdc24 has been reported to interact with replication factor C (RFC) as well as proliferating cell nuclear antigen (PCNA), and has been suggested to act as a target for the regulation of damage repair DNA synthesis [2].

1: Fission yeast cdc24(+) encodes a novel replication factor required for chromosome integrity. Gould KL, Burns CG, Feoktistova A, Hu CP, Pasion SG, Forsburg SL; Genetics. 1998;149:1221-1233. PMID:9649516

2: Fission yeast cdc24 is a replication factor C- and proliferating cell nuclear antigen-interacting factor essential for S-phase completion. Tanaka H, Tanaka K, Murakami H, Okayama H; Mol Cell Biol. 1999;19:1038-1048. PMID:9891039