3.2.1.86 C195G the mutant shows significantly enhanced activity towards salicin compared to the wild type enzyme 750963 3.2.1.86 E170Q catalytic mutant -, 750522 3.2.1.86 E171A site-directed mutagenesis, inactive mutant 732101 3.2.1.86 E171Q site-directed mutagenesis, inactive mutant 732101 3.2.1.86 E173S site-directed mutagenesis -, 705622 3.2.1.86 E173S/I174V site-directed mutagenesis -, 705622 3.2.1.86 E179A site-directed mutagenesis, inactive mutant 731178 3.2.1.86 E182A inactive mutant 666900 3.2.1.86 E364A site-directed mutagenesis, inactive mutant 732101 3.2.1.86 E364Q site-directed mutagenesis, inactive mutant 732101