G Protein Beta is a component of G proteins, which are molecular switches that play a crucial role in transmitting signals from outside the cell to its interior. These proteins are involved in various cellular processes, including growth, immune responses, and sensory perception. G proteins consist of three subunits: alpha, beta, and gamma, with the beta subunit being essential for the proper functioning of the entire complex. The G Protein Beta subunit helps regulate the activity of the alpha subunit and interacts with other proteins to facilitate signal transduction. When a receptor on the cell surface is activated, the G protein undergoes a conformational change, allowing it to relay signals that can lead to various cellular responses. This process is vital for maintaining normal physiological functions.