Differential regulations
Please see the main text for explanation. The hormones or metabolites that positively or negatively affect the activities of Glycogen Synthase (GS) or Glycogen Phosphorylase (GP) are indicated as (+) and (-), respectively. Abbreviations: G6P, Glucose 6-Phosphate; ATP, Adenosine Triphosphate.
Figure 1: Differential regulations of glycogen metabolism in the liver (A) and skeletal muscle (B).