1.4.3.16 after 96 h of incubation, 82% of the initial enzymatic activity is maintained in the presence of 1 or 10 mM H2O2 vs. 86% in the absence of hydrogen 742229 1.4.3.16 stable at 4°C for at least 2 months without loss of activity 391765 1.4.3.16 urea, 7 M, denaturation 391756