Glycogen regulation

Insulin signaling stimulation PTEN, Glycogen regulation 4,GSK3, fGS Gluconeogenesis inhibitors, P-cell restoration... 

Role of glycogen synthase kinase in glycogen regulation (Chapter 21)... 

PHOSPHOPROTEINS. These proteins have phosphate groups esterified to the hydroxyls of serine, threonine, or tyrosine residues. Casein, the major protein of milk, contains many phosphates and serves to bring essential phosphorus to the growing infant. Many key steps in metabolism are regulated between states of activity or inactivity, depending on the presence or absence of phosphate groups on proteins, as we shall see in Chapter 15. Glycogen phospho-rylase a is one well-studied example. 

Glycogen Phosphorylase Allosteric Regulation and Covalent Modification 473... 

Storage and utilization of tissue glycogen, maintenance of blood glucose concentration, and other aspects of carbohydrate metabolism are meticulously regulated by hormones, including insulin, glucagon, epinephrine, and the glucocorticoids. 

The principal enzymes controlling glycogen metabolism—glycogen phosphorylase and glycogen synthase— are regulated by allosteric mechanisms and covalent modifications due to reversible phosphorylation and... 

Glycogen Synthase Phosphorylase Activity Are Reciprocally Regulated (Figure 18-7)... 

REGULATION OF GLYCOGEN METABOLISM IS EFFECTED BY A BALANCE IN ACTIVITIES BETWEEN GLYCOGEN SYNTHASE PHOSPHORYLASE (Figure 18-8)... 

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