Which of the following reactions IS NOT INVOLVED in regulation of the phosphorylase kinase cascade?

Question

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Proteolysis is not involved in regulation of the phosphorylase kinase cascade. The other choices are involved in regulation: A) cyclic AMP activates protein kinase A, which phosphorylates and activates phosphorylase kinase. B) Activation of protein kinase A leads to phosphorylation and activation of phosphorylase kinase. C) Phosphorylation of certain amino acids of phosphorylase kinase also leads to its activation. E) Phosphatases can remove phosphate groups from phosphorylase kinase, inactivating it.

Which of the Following Reactions IS NOT INVOLVED in Regulation