GGTase (香叶酰基香叶转移酶)

GGTase belongs to the family of isoprenyltransferases. It can transfer the geranylgeranyl group of GGPP to the cysteine residues of specific proteins. This post-translational modification can change the properties and functions of proteins, affecting their intracellular localization, stability, and interactions with other molecules, etc. GGTase is involved in cell signal transduction. By geranylgeranylating small G proteins, it can activate downstream signaling pathways, thus regulating processes such as cell proliferation and differentiation. In addition, GGTase is also involved in vesicle transport and the regulation of the cytoskeleton organization, which can alter cell morphology and migration ability. Abnormalities in its function or changes in its expression are closely related to tumors, neurodegenerative diseases, and cardiovascular diseases^[1][2].