EC Number |
Protein Variants |
Reference |
---|
2.5.1.75 | D153A |
at least 25% of wild-type activity |
696197 |
2.5.1.75 | D164A |
increase in Km for both substrates |
696197 |
2.5.1.75 | D42A |
20fold decrease in kcat |
696197 |
2.5.1.75 | D55G |
site-directed mutagenesis, the mutant shows 50% reduced specific activity compared to the wild-type enzyme |
737635 |
2.5.1.75 | E173A |
at least 25% of wild-type activity |
696197 |
2.5.1.75 | E229A |
substantial increase in Km for RNA, dimethylallyl diphosphate becomes inhibitory at higher concentrations |
696197 |
2.5.1.75 | F84A |
at least 25% of wild-type activity |
696197 |
2.5.1.75 | H67F |
25fold increase in Km for dimethylallyl diphosphate |
696197 |
2.5.1.75 | K127D |
activity similar to wild-type |
723760 |
2.5.1.75 | K181H |
selective disproportionate decrease in activity toward several substrates |
723760 |