Insulin binding to the insulin receptor activates a that act

Insulin binding to the insulin receptor activates a that activates glycogen synthase and deactivates glycogen phosphorylase.

Solution

1.When insulin binds to its receptor then it activates insulin -stimulated kinase.
2.Activated insulin-stimulated kinase phosphorylates the G-subunit of phosphoprotein phosphatase (PP-1), and activates it.
3.Activated PP-1 dephosphorylates glycogen synthase, and activates it.
4. PP-1 dephosphorylates glycogen phosphorylase and deactivates it to reduce glycogen breakdown.

So answer is phosphoprotein phosphatase-1