Fig. 3From: Engineering a diaphorase via directed evolution for enzymatic biofuel cell applicationThe residual activity of GsDI wild type and the mutants at a pH 5.4 and the room temperature and at b 60 °C and pH 7.3. Black line: WT; red line: mutant 1–8; blue line: mutant 2–12; green line: mutant 3–8Back to article page