2.7.7.39 C106A mutant with kinetic constants similar to wild-type enzyme 645247 2.7.7.39 D11A mutant with low kcat value 645247 2.7.7.39 D11E mutant with low kcat value 645247 2.7.7.39 D38A mutant with high Km value 645247 2.7.7.39 D38E kcat similar to wild-type enzyme 645247 2.7.7.39 D66A mutant with low kcat value, defective in overall structure 645247 2.7.7.39 D66E mutant with low kcat value 645247 2.7.7.39 D87A mutant with kinetic constants similar to wild-type enzyme 645247 2.7.7.39 D92A mutant with kinetic constants similar to wild-type enzyme 645247 2.7.7.39 D94A initial binding constant is similar to wild-type enzyme 645249