G-Protein Coupled Receptors (GPCRs) are a large family of proteins found on the surface of cells. They play a crucial role in transmitting signals from outside the cell to the inside, helping the cell respond to various stimuli like hormones, neurotransmitters, and environmental changes. When a molecule binds to a GPCR, it activates a G-protein inside the cell, which then triggers a series of reactions that lead to a specific response. These receptors are essential for many bodily functions, including vision, taste, and smell. They are also important in the field of medicine, as many drugs target GPCRs to treat conditions such as asthma, depression, and high blood pressure. Understanding GPCRs can help scientists develop new therapies and improve existing treatments