G-protein Signaling

Pathway The G-protein signaling pathway is a cellular signaling system involved in many cellular processes, such as growth, metabolism, and responding to external stimuli. It delivers signals from outside the cell, such as hormones, to the inside of the cell, triggering changes in gene expression and enzyme activity. G-proteins are proteins on the surface of the cell that are composed of three subunits: an alpha, beta and gamma subunit. When a signal molecule binds to the beta and gamma subunit, the alpha subunit is released, activating a series of pathways inside the cell. G-protein signaling is highly regulated and essential for many cellular processes, and disruption of it can lead to diseases such as cancer and diabetes. Therefore, more research is needed to understand how the G-protein signaling pathway works in order to develop better treatments for these diseases.