Description_x000D_ General description_x000D_ Protein phosphatase 2C (PP2C) is a member of protein phosphatases, Mg2+/Mn2+ dependent (PPM) family. PP2C is a monomeric enzymes found in both prokaryotes and eukaryotes._x000D_ Biochem/physiol Actions_x000D_ In Arabidopsis, protein phosphatase 2C (PP2C) negatively regulates plant hormone, abscisic acid (ABA) signal transduction. In eukaryotes, this protein modulates the cell cycle by reversing the activating phosphorylation of cyclin-dependent protein kinases (CDKs). PP2C acts as a crucial physiological regulators of cell growth and of cellular stress signaling._x000D_ Unit Definition_x000D_ One unit will release 1.0 nanomole of phosphate from 32P-labeled myelin basic protein at pH 7.0 at 30 °C_x000D_ Physical form_x000D_ Solution in 50 mM Tris-HCl, pH 7.0, containing 14 mM 2-mercaptoethanol, 1 mM benzamidine, 0.1 mM PMSF, 1 mM EDTA, and 50% glycerol