| Name | Mutations | Genotype |
|---|
| WP2 | 3 | F-, lon-11, sulA1, trpE65(Oc) |
| CM1320 | 4 | F-, lon-11, sulA1, trpE65(Oc), mutM102::kan |
| E. coli B/r | 4 | F-, lon-11, sulA1, Mal(ts), λR |
| F26 | 4 | F-, lon-11, sulA1, his-222, thyA751 |
| WP2 hcr- | 4 | F-, lon-11, sulA1, trpE65(Oc), uvrA155 |
| WU38 | 4 | F-, lon-11, sulA1, tyrA14, recA1 |
| BS21 | 5 | F-, lon-11, sulA1, his-222, thyA751, adc-1 |
| HB4 | 8 | F-, thr-11, leuB19, lac-12, lon-11, sulA1, rpsL56(strR), pro-19, gal-13 |
| HB45 | 13 | F-, thr-11, leuB19, lac-11, lon-11, sulA1, trp-25, rpsL56(strR), rbs-20, gal-11, met-55, his-47, pro-19, arg-28 |
| WM437 | 14 | F-, leuB19, lac-11, lon-11, sulA1, trp-25, dnaI208(ts), thyA59, rpsL56(strR), deoB23, met-55, his-47, pro-19, gal-11, arg-28 |