Ku protein

The Ku protein is a crucial component in the process of repairing DNA damage, specifically when DNA strands break. It functions as a DNA-binding protein that recognizes and attaches to the broken ends of DNA, preventing them from deteriorating or causing errors. By doing so, Ku helps facilitate the repair process, especially through a pathway called non-homologous end joining (NHEJ), which quickly reconnects broken DNA strands. This function is essential for maintaining genetic stability, preventing mutations, and ensuring proper cell function and survival.