Table 1. Titration of mETXs compared with rETX.
| Mutation | Titration |
|---|---|
| H106P | 1:102 |
| S111H | 1:103 |
| S111Y | 1:103 |
| F199H | 1:103 |
| F199E | 1:103 |
| S111YF199E | 1:103 |
| rETX | 1:103 |
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