Fig. 3
From: Identification of bacterial laccase cueO mutation from the metagenome of chemical plant sludge
Relative laccase activity of single-point mutants of CueO compared to wild type at pH 4.5 and 60 °C. The activity of the G276R mutant was about sevenfold higher than that of the wild-type enzyme. The relative laccase activity in the supernatants was determined using standard enzyme assays and shown on the y-axis. Enzyme activity is expressed as the mean of three samples, and error bars indicate standard deviation