Store at -20℃. This product is stable at -20℃ up to 3 years from the date of receipt . After reconstitution, the solution is stable at -20℃ for 6 months, at -80℃ for up to 1 year.未开盖的干粉蛋白在 -20°C至-80°C可保存12个月； 复溶之后，蛋白溶液在-20°C及以下可保存3个月，在2-8℃可保存1周。
激酶实验/Kinase Assay: All protein kinase activities were linear with respect to time in every incubation. Assays were performed either manually for 10 min at 30°C in 50 μL incubations using [γ-32P]ATP or with a Biomek 2000 Laboratory Automation Workstation in a 96-well format for 40 min at ambient temperature in 25 μL incubations using [γ-32P]ATP. The concentrations of ATP and magnesium acetate were 0.1 mM and 10 mM respectively, unless stated otherwise. This concentration of ATP is 5–10-fold higher than the Km for ATP of most of the protein kinases studied in the present paper, but lower than the normal intracellular concentration, which is in the millimolar range. All assays were initiated with MgATP. Manual assays were terminated by spotting aliquots of each incubation on to phosphocellulose paper, followed by immersion in 50 mM phosphoric acid. Robotic assays were terminated by the addition of 5 μl of 0.5 M phosphoric acid before spotting aliquots on to P30 filter mats. All papers were then washed four times in 50 mM phosphoric acid to remove ATP, once in acetone (manual incubations) or methanol (robotic incubations), and then dried and counted for radioactivity [1].
