Where is glucose from UDP-glucose transferred to so that the initiation of glycogen synthesis occurs?

Question

Quizplus · Accepted Answer

Glucose from UDP-glucose is transferred to the tyrosine-OH group of glycogenin to initiate glycogen synthesis. This forms a glucose-tyrosine bond, which serves as the primer for further glycogen synthesis. Option B is incorrect as the 4-position of glucose is involved in branching during glycogen synthesis. Option C is incorrect as it refers to fructose instead of glucose. Option D is incorrect as glycogen synthase adds glucose units to an existing glycogen chain rather than initiating glycogen synthesis.

Where Is Glucose from UDP-Glucose Transferred to So That the Initiation