Fig. 7From: Heterologous expression of nattokinase from B. subtilis natto using Pichia pastoris GS115 and assessment of its thrombolytic activityEffect of pH and temperature on the stability of NK-Bs. A pH stability of NK-Bs. B Thermostability of NK-Bs at 50–75 °C, at increments of 5 °CBack to article page