Description_x000D_ General description_x000D_ TSSK3 is a serine/threonine kinase belonging to the subfamily of testis-specific kinases 3 which expressed exclusively in the testis that is thought to play a main role in either germ cell differentiation or mature sperm function._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.