Glycogen [starch] synthase, liver

GYS2 - Glycogen [starch] synthase, liver - Homo sapiens (Human) - GYS2 gene & protein

Names & Taxonomyi

Protein namesi
Recommended name:
Glycogen [starch] synthase, liver (EC:2.4.1.11)
Gene namesi
Name:GYS2

Function

Transfers the glycosyl residue from UDP-Glc to the non-reducing end of alpha-1,4-glucan.
Catalytic activity
UDP-alpha-D-glucose + ((1->4)-alpha-D-glucosyl)(n) = UDP + ((1->4)-alpha-D-glucosyl)(n+1).
Enzyme regulationi
Allosteric activation by glucose-6-phosphate. Phosphorylation reduces the activity towards UDP-glucose. When in the non-phosphorylated state, glycogen synthase does not require glucose-6-phosphate as an allosteric activator; when phosphorylated it does (By similarity).