Description_x000D_ General description_x000D_ Protein kinase C-α (PKC-α) is a member of the PKC family of serine- and threonine-specific protein kinases that can be activated by calcium and the secondary messenger diacylglycerol. The protein is expressed in the dorsal ectoderm of Xenopus._x000D_ Biochem/physiol Actions_x000D_ Protein kinase C-α (PKC-α) has been reported to play roles in many different cellular processes, such as cell adhesion, cell transformation, cell cycle checkpoint and cell volume control. It has been identified as a fundamental regulator of cardiac contractility and Ca2+ handling in myocytes._x000D_ Physical form_x000D_ Supplied in 50 mM Tris-HCl, pH 7.5, 150 mM NaCl, 10 mM glutathione, 0.1 mM EDTA, 0.25 mM DTT, 0.1 mM PMSF, 25% glycerol._x000D_ Preparation Note_x000D_ After opening, aliquot into smaller quantities and store at -70 °C. Avoid repeating handling and multiple freeze/thaw cycles._x000D_ Legal Information_x000D_ PRECISIO is a registered trademark of Sigma-Aldrich Co. LLC