1.14.13.128 | stabilization can be achieved by addition of either glycerol (20%), bovine serum albumin (10 mg/ml), dithiothreitol (1 mM) or the substrate 7-methylxanthine (1 mM). Storage under nitrogen atmosphere has a stabilizing influence. The addition of caffeine (1 mM), dimethylxanthines (1 mM) and protease inhibitors (pepstatin A, PMSF, 0.1 mM) is without influence on stability |
707235 |