1.13.12.3 C339A slight decrease in activity with tryptophan or methionine 439346 1.13.12.3 C511S high decrease in activity with tryptophan or methionine 439346 1.13.12.3 H338N slight decrease in activity with tryptophan or methionine 439346 1.13.12.3 K365M mutation decreases the kcat and kcat/Km (L-tryptophan) values by 60000- and 2 millionfold compared to wild-type, respectively 727017 1.13.12.3 R98A decrease in Vmax, increase in Km-value of tryptophan 654682 1.13.12.3 R98K decrease in Vmax, increase in Km-value of tryptophan 654682 1.13.12.3 W466F mutation decreases the kcat value less than 2fold and the kcat/Km (L-tryptophan) value only 5fold compared to wild-type 727017 1.13.12.3 W466M mutation results in an enzyme lacking flavin and detectable activity 727017 1.13.12.3 Y413A 200fold reduction in first-order rate constant for reduction, 33fold decrease in rate constant for oxidation, conversion of enzyme to oxidase 654683 1.13.12.3 Y413F 35fold reduction in first-order rate constant for reduction, 11fold decrease in rate constant for oxidation, conversion of enzyme to oxidase 654683