knowledge of these steps led to the establishment of the glycogenolytic cascade in which adenosine 3',5'-cyclic phosphate , formed as a result of hormone action , first activates the adenosine 3',5'-cyclic phosphate-dependent protein kinase , which in turn activates phosphorylase kinase , which then converts inactive phosphorylase to its active form .
C0033640
protein kinase
C0031713
phosphorylase kinase