1.1.1.71 additional information - thermal denaturation is fully irreversible and follows first-order kinetics 726699 1.1.1.71 4 60 the enzyme is thermally stable when incubated for 30 min between 4 and 40°C. Incubation for 30 min at temperatures between 10 and 30 °C slightly increases the catalytic activity. Recombinant enzyme is completely inactivated at 50 and 60°C 737536 1.1.1.71 8 25 the enzyme has a half-life of 80 h at 25°C and stability optimum between 8 and 15°C in the presence of 0.8 mM CaCl2 (half-life of 130 h) 740200 1.1.1.71 30 - no loss of activity after 15 min, complete loss of activity at 60°C 287280 1.1.1.71 41 - melting temperature T1/2 of wild-type enzyme ADHA 760769 1.1.1.71 48 - melting temperature T1/2 of mutant ADHA-0278 760769 1.1.1.71 53 - melting temperature T1/2 of mutant ADHA-0279 760769 1.1.1.71 65 - melting temperature T1/2 of mutant ADHA-0391 760769 1.1.1.71 66 - melting temperature T1/2 of mutant ADHA-0384 760769 1.1.1.71 67 - melting temperature T1/2 of mutant ADHA-0398 and of mutant ADHA-0381 760769