Source:http://linkedlifedata.com/resource/umls/id/C1514560
NCI: Any substance that inhibits a protein phosphatase, especially those that inhibit the serine/threonine protein phosphatases 1 and 2A, enzymes that regulate entry of the cell into the cell cycle, mitosis and apoptosis. Inhibition of protein phosphatases 1 and 2A can cause cell cycle arrest and apoptosis.