Epac (Exchange Protein directly Activated by cAMP)

Epac, or Exchange Protein directly Activated by cAMP, is a protein inside cells that helps transmit signals from a molecule called cAMP. When cAMP levels rise, Epac acts as a messenger to activate other proteins, leading to changes in cell functions such as growth, movement, or communication. It plays a key role in how cells respond to hormones and other signals, especially in processes like heart function, insulin release, and cell development. Essentially, Epac is a specialized switch that helps cells interpret and respond to specific chemical messages.