Maternal DCAF2 is crucial for maintenance of genome stability during the first cell cycle in mice.

-null oocytes were able to develop and mature normally, the embryos derived from them were arrested at one- to two-cell stage, owing to prolonged DNA replication and accumulation of massive DNA damage. These results indicate that DCAF2 is a previously unrecognized maternal factor that safeguards zygotic genome stability. Maternal DCAF2 protein is crucial for prevention of DNA re-replication in the first and unique mitotic cell cycle of the zygote.This article has an associated First Person interview with the first author of the paper.

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