53BP1

53BP1 (Tumor Protein p53 Binding Protein 1) is a protein involved in the cell’s response to DNA damage, particularly double-strand breaks. When DNA is injured, 53BP1 quickly localizes to the damage site, helping to regulate the repair process by influencing the choice between different repair pathways. It promotes accurate repair and prevents improper rejoining that could lead to mutations or cancer. Additionally, 53BP1 plays a role in maintaining genomic stability, ensuring that cells preserve their genetic information correctly. Overall, it acts as a guardian, helping cells fix DNA damage and protect against genetic errors.