ligand-receptor interaction

Ligand-receptor interactions occur when a molecule called a ligand binds specifically to a receptor, which is often a protein on or inside a cell. This binding is like a key fitting into a lock, where the ligand’s shape matches the receptor’s binding site. Once the ligand attaches, it can trigger a response in the cell, such as activating or inhibiting certain functions. These interactions are fundamental to many biological processes, including how our cells communicate, respond to signals, and maintain health. The precision of this binding ensures that signals are accurately transmitted to control cellular activities.