GLYCOGEN METABOLISM

GLYCOGEN BREAKDOWN (or Glycogenolysis)

1. Glycogen Phosphorylase

2. Glycogen Debranching Enzyme (Fig. 15-6)

3. Phosphoglucomutase

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GLYCOGEN SYNTHESIS

1. UDP-Glucose Pyrophosphorylase

2. Glycogen Synthase

3. Branching Enzyme (Fig. 15-11)

REGULATION

1. Allosteric (Fig. 15-13)

2. Covalent Modification (Protein Phosphorylation & Dephosphorylation

     (A) Phosphorylase a and b

(B)  Summary of Cascade Regulation (replacing Figs. 15-20, 21)