ERK (Extracellular Regulated Kinase)

ERK, or Extracellular Signal-Regulated Kinase, is a protein involved in transmitting signals from the outside of a cell to its interior. It plays a key role in controlling cell functions such as growth, division, and survival. When a cell receives a specific signal, ERK gets activated through a chain of events, then moves into the nucleus to influence gene activity. This process helps the body respond appropriately to various stimuli, such as healing injuries or developing tissues. Proper ERK function is essential for healthy cellular activity, while abnormal ERK signaling can contribute to diseases like cancer.