Buffer
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Nuclear extracts are supplied in dilution buffer (20?mM Hepes (?pH 7.9), 100 mM KCl, 1?mM MgCl2, 20?% glycerol, 0.5 mM PMSF and 0.5 mM DTT). Cells were cultured in medium supplemented with 50?ng/mL TPA (phorbol, 12-myristate, 13 acetate) and 0.5 μM calcium ionophore A23187 (CI) for two hours at 37?°C immediately prior to harvesting.
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