G protein subunits gamma
g protein subunits gamma
Guanine nucleotide binding proteins (G proteins) are membrane-associated, heterotrimeric proteins composed of three subunits: alpha, beta and gamma. The specific combination of subunits in heterotrimeric G proteins affects not only which receptor it can bind to, but also which downstream target is affected, providing the means to target specific physiological processes in response to specific external stimuli. G proteins carry lipid modifications on one or more of their subunits to target them to the plasma membrane and to contribute to protein interactions. This entry represents the G protein gamma subunit.