3.4.24.84 L362F 1.3% of wild-type activity 735044 3.4.24.84 L438F 1.0% of wild-type activity 735044 3.4.24.84 L94P 2.8% of wild-type activity 735044 3.4.24.84 N265S 4.3% of wild-type activity 735044 3.4.24.84 P248L 4.6% of wild-type activity 735044 3.4.24.84 T159/L209del no residual activity 735044 3.4.24.84 W340R 13.7% of wild-type activity 735044 3.4.24.84 W450X 0.3% of wild-type activity 735044 3.4.24.84 H335A the mutant shows 1.5% of wild type activity 753395 3.4.24.84 H339A the mutant shows 1.9% of wild type activity 753395