PHLPP2: Proteins and Enzymes

PHLPP2 contains 21 LRR (leucine rich) repeats, 1 PH domain and 1 PP2C like domain. It is a protein phosphatase that specifically mediates dephosphorylation of AKT1 Ser 473, a protein that regulates the balance between cell survival and apoptosis through a cascade that primarily alters the function of transcription factors that regulate pro and antiapoptotic genes. Dephosphorylation of Ser 473 of AKT1 triggers apoptosis and decrease cell proliferation. PHLPP2 also controls the phosphorylation of AKT3. It binds 2 manganese ions per subunit. There are 3 named isoforms produced by alternative splicing.