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Regulacja syntezy i degradacji glikogenu

FIGURĘ 15-24 Regulation of muscle glycogen phosphorylase by covalent modification. In the morę active form of the enzyme, phosphorylase a, Ser¹⁴ residues, one on each subunit, are phosphorylated. Phosphorylase a is converted lo the less active form, phosphorylase b, by enzymatic loss of these phosphoryl groups, catalyzed by phosphorylase a phosphatase (PP1). Phosphorylase b can be reconverted (reactivated) to phosphorylase a by the action of phosphorylase b kinase.

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