Polycomb group proteins

Polycomb group proteins are a family of proteins that play a crucial role in regulating gene expression in cells. They help control which genes are turned on or off, ensuring that cells develop correctly and maintain their specific functions. By modifying the structure of DNA and the proteins associated with it, Polycomb proteins keep certain genes silenced, which is essential for processes like development, cell differentiation, and maintaining the identity of various cell types. Their activity is vital for proper growth and functioning, and their dysregulation can lead to various diseases, including cancer.