Rad3-related protein

Rad3-related protein (ATR) is a crucial enzyme in cells that helps maintain DNA stability. It detects and responds to DNA damage or stress, especially when DNA is partially damaged or during cell division. Once activated, ATR triggers repair processes and halts cell division to prevent errors from spreading. This function is essential for preventing mutations and maintaining healthy cells. ATR plays a vital role in protecting genetic information, and its proper functioning is important for preventing diseases like cancer.