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E. coli Lab Strains for Studying the Lac-Operon
| Strain ID | Genotype |
|---|---|
| This Group: Historic Laboratory Strains from 1928 | |
| K-12 | lac+ |
| CSH57 | lac+ |
| CSH58 | lacZ- |
| W3110 | lac+ |
| gal+ | lac+ |
| gal- | lac+ |
| C600 | lacY- |
| This Group: Truly Wild Strains | |
| O2:K5 (Portugal) | lac?- |
| 04 | lac+ |
| O9 | lac+ |
| O12 | lacleaky |
| O16:K1 (Denmark) | lac?- |
| O18ac:K1 ("Bort") | lac+ |
| O75:K1 (Denmark) | lac+ |
| O88 | lac+ |
| O111:B7 | lac+ |