Description_x000D_ Biochem/physiol Actions_x000D_ AMPK is a heterotrimer protein kinase consisting of a α catalytic subunit, and non-catalytic β and γ subunits. AMPK is an important energy-sensing enzyme that monitors cellular energy status. In response to cellular metabolic stresses, AMPK is activated and phosphorylates and inactivates acetyl-CoA carboxylase (ACC) and 3-hydroxy-3-methylglutaryl-CoA reductase (HMGCR), key enzymes involved in regulating biosynthesis of fatty acid and cholesterol._x000D_ Physical form_x000D_ Supplied in 50mM NaPhosphate pH 7.0, 300 mM NaCl, 150 mM imidazole, 0.1mM PMSF, 0.2 mM DTT, 25% glycerol._x000D_ Legal Information_x000D_ PRECISIO is a registered trademark of Sigma-Aldrich Co. LLC