Table 3.
Nature and number of identified RifR (rpoB) mutations in nrdAB mutator strains either proficient or deficient in DNA mismatch repair (mutS)
| Mutation | WT | WT mutS | A301T | A301T mutS | A301V | A301V mutS | G295S | G295S mutS |
| Transitions | ||||||||
| A·T → G·C | 24 | 57 | 69 | 83 | 96 | 89 | 99 | 71 |
| G·C → A·T | 42 | 41 | 5 | 16 | 0 | 10 | 1 | 28 |
| Transversions | ||||||||
| G·C → T·A | 4 | 1 | 2 | 0 | 0 | 0 | 0 | 0 |
| A·T → T·A | 27 | 0 | 23 | 1 | 1 | 1 | 0 | 0 |
| A·T → C·G | 1 | 0 | 0 | 0 | 1 | 3 | 0 | 0 |
| G·C → C·G | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 |
| Total | 99 | 99 | 101 | 100 | 98 | 103 | 100 | 99 |