Peripheral membrane proteins

Peripheral membrane proteins are proteins that are temporarily attached to the surface of cell membranes, which are the protective layers surrounding cells. They do not span the entire membrane like integral proteins but instead associate loosely with the outer or inner surfaces, often through interactions with other membrane proteins or lipids. These proteins play important roles in cell signaling, maintaining the cell's structure, and facilitating communication between the cell's internal and external environments. They can be released from the membrane without damaging it, allowing them to perform dynamic functions essential for cell activity.