2.1.1.41 A193L no activity 685376 2.1.1.41 A193L no enzyme activity 685376 2.1.1.41 A193S 95% relative enzyme activity 685376 2.1.1.41 A193S relative activity: 95% 685376 2.1.1.41 A196L 73% relative enzyme activity 685376 2.1.1.41 A196L relative activity: 73% 685376 2.1.1.41 A200L 4% relative enzyme activity 685376 2.1.1.41 A200L relative activity: 4% 685376 2.1.1.41 A221L 25% relative enzyme activity 685376 2.1.1.41 A221L relative activity: 25% 685376