Answer: Option D
Explanation:
The main function of PTEN is that it acts as a inhibitor which inhibits the signaling of P13K. Phosphatase are responsible for the dephosphorylation so PTEN is most likely to be function as a phosphatase.
The PTEN acts as the tumor suppressor geneand works by its phosphatase protein product.
It is involved in the regulation of the cell cycle, which prevents the cells from growing and dividing too rapidly.
It is the target of most of the anticancer drugs.
