Quick Biochemistry - Carbohydrates And Carbohydrate Metabolism (Section 4 - No. 10)

Which enzyme does *not* have an impact on the conversion of glycogen synthase a to b?

Glycogen synthase kinases 3, 4, 5

Ca2+ calmodulin phosphorylase kinase

Ca2+ calmodulin dependent protein kinase

Glycogen phosphorylase a