The proteins that copy DNA are not perfect. Luckily, our cells can fix broken DNA via a process called homologous recombination repair, which involves proteins like RAD51. RAD51 helps protect DNA from being degraded by cell enzymes as it is copied.
, PhD, and colleagues聽聽last month in the journal聽Cell Reports聽that another protein they identified, RADX, is a modulator of RAD51. They found that RADX helps keep RAD51 in check in order to make sure exactly the correct amount of DNA repair occurs.