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- May 2019
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sg.inflibnet.ac.in sg.inflibnet.ac.in
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10 mg phosphatidylinositol-sodium salt(from Glycine max)was dissolved in 2 ml chloroform to prepare a 5 mg/ml stock solution. This solution was prepared in a small glass vial aschloroformis known to reactwith polypropylene. Small aliquots of stock solution were madeand stored at -20ºC till further use. To avoid spillage due to vapor pressure, vials containing phosphatidylinositol-sodium salt solutionwereopened very carefully.To prepare sonicated phosphatidylinositolfor one PI-3 kinase reaction, 2 μlof the stock phosphatidylinositolsolution (10 μg) wastransferredtoanew1.5 ml microcentrifuge tube. Using vacuum evaporator apparatus, chloroformwas evaporated from the solution and phosphatidylinositol-sodium saltwas resuspended in 5 μl sonication buffer.For sonication, a total of 20 pulses, each of 30 sec with30 sec resting time weregiven on ice
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