p53 (Tumor Suppressor Protein)

p53 is a crucial protein in the body that acts as a tumor suppressor, helping to prevent cancer. It monitors the health of cells and can trigger repairs if DNA is damaged or induce cell death if the damage is too severe. Often called the "guardian of the genome," p53 plays a vital role in controlling cell growth and ensuring that cells do not proliferate uncontrollably, which can lead to tumors. When p53 is mutated or malfunctioning, it can lose its protective functions, contributing to the development of various cancers.