Polycomb repressive complex

Polycomb repressive complex (PRC) is a group of proteins that help control gene activity by turning certain genes off when needed. They do this by modifying the DNA or its associated structures, making it less accessible for gene activation. This process is vital during development, maintaining cell identity, and preventing unwanted gene expression. PRC acts as an epigenetic regulator, ensuring genes are expressed only when appropriate, thereby supporting proper growth and function of cells. It is a key component in gene regulation, essential for healthy development and preventing diseases like cancer.