Target intelligence / Profile preview

Glycogen Synthase

Molecular classification
Enzyme, Glycosyltransferase
01

Overview

Glycogen synthase (UDP-glucose:glycogen 4-α-D-glucosyltransferase; EC 2.4.1.11) is a key enzyme in glycogenesis, the metabolic pathway that converts glucose into glycogen for storage in animals and humans. It catalyzes the transfer of glucose from UDP-glucose to a growing chain of glycogen, forming α(1→4) glycosidic bonds. There are two main isozymes: GYS1 (muscle and other tissues) and GYS2 (liver). It is regulated by phosphorylation/dephosphorylation and allosterically activated by glucose-6-phosphate. Dysregulation can contribute to metabolic diseases such as diabetes or certain forms of hypoglycemia.

02

Mechanism of action

Inhibition of glycogen synthase

03

Biological functions

GlycogenesisGlucose metabolismEnergy storageRegulation of blood glucose levels
04

Disease associations

DiabetesHypoglycemiaGlycogen storage diseasesIschemia/Hypoxia
05

Safety considerations

Excessive glycogen storageInsufficient glycogen storage

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