How is phosphorylase b converted into phosphorylase a?
A) through the addition of a phosphate to a serine residue
B) through dimerization, which forms the active-site pocket
C) through cleavage of 10 amino acids from the N-terminal end of the protein
D) All of the above.
E) None of the above.

Question

Quizplus · Accepted Answer

Phosphorylase b is converted into phosphorylase a through the addition of a phosphate group to a serine residue. This phosphorylation activates the enzyme, enabling it to catalyze the breakdown of glycogen into glucose-1-phosphate.

How Is Phosphorylase B Converted into Phosphorylase A