1.14.11.43 E69A exhibits 30.8% of wild-type enzyme activity with (S)-2-(4-chloro-2-methylphenoxy)propanoate. kcat/Km is 42% compared to the wild-type value 723719 1.14.11.43 G97I/N98G exhibits 3.8% of wild-type enzyme activity with (S)-2-(4-chloro-2-methylphenoxy)propanoate. kcat/Km is 0.6% compared to the wild-type value 723719 1.14.11.43 G97N/N98G exhibits 0.3% of wild-type enzyme activity with (S)-2-(4-chloro-2-methylphenoxy)propanoate 723719 1.14.11.43 H208A exhibits about 1.4% of wild-type enzyme activity with (S)-2-(4-chloro-2-methylphenoxy)propanoate. kcat/Km is 0.1% compared to the wild-type value 723719 1.14.11.43 H272A exhibits about 1.2% of wild-type enzyme activity with (S)-2-(4-chloro-2-methylphenoxy)propanoate 723719 1.14.11.43 Q162F exhibits about 4.8% of wild-type enzyme activity with (S)-2-(4-chloro-2-methylphenoxy)propanoate 723719 1.14.11.43 R207A exhibits about 17.3% of wild-type enzyme activity with (S)-2-(4-chloro-2-methylphenoxy)propanoate. kcat/Km is 2% compared to the wild-type value 723719 1.14.11.43 R207V exhibits about 2.8% of wild-type enzyme activity with (S)-2-(4-chloro-2-methylphenoxy)propanoate 723719 1.14.11.43 R274A inactive mutant enzyme 723719