Figure 5From: Cloning and constitutive expression of Deschampsia antarctica Cu/Zn superoxide dismutase in Pichia pastorisThermostability of recombinant SOD. The activity of recombinant SOD was measured by spectrophotometry (see Methods). Previous to the activity measurement, samples were incubated at -20, 0, 20, 25, 40, 60 and 80°C for 20 minutes. The activity is expressed as the percentage of activity compared to the untreated sample at 25°C.Back to article page