A phospholipid phosphatase complex that catalyses the hydrolysis of the second messenger PtdIns (3,4,5)P3. Will also dephosphorylate PtdIns(3,4)P2, PtdIns3P, and Ins(1,3,4,5)P4. Dimerization is critical for its lipid phosphatase function.
phosphatase and tensin homolog