Phosphatidylinositol

Phosphatidylinositol is a type of lipid (fat) found in cell membranes. It plays a crucial role in cellular signaling, acting as a precursor for important molecules involved in processes like cell growth, movement, and communication. When certain signals are received, phosphatidylinositol can be modified to produce second messengers that transmit messages inside the cell, helping regulate various biological functions. It is essential for maintaining cell structure and facilitating responses to external stimuli, making it vital for healthy cell activity and communication.