| Name | Mutations | Genotype | 
|---|
| HF4733 | 7 | F-, lac-61, gal-44, λ-, thyA48, endA1, deo-43 or deo-29, φXs | 
| HF4735 | 8 | F-, lac-61, glnX44(AS), λ-, uvrB5, thyA48, endA1, deo-27, φXs | 
| JC5170 | 8 | F-, lac-61, gal-44, λ-, sbcA4(Rac), recC22, endA1, deo-43 or deo-29, φXs | 
| JC5174 | 8 | F-, lac-61, gal-44, λ-, sbcA1(Rac), recB21, endA1, deo-43 or deo-29, φXs | 
| NH5033 | 9 | F-, lac-61, glnX44(AS), gal-44, λ-, sbcB15, recB21, endA1, thiE1, deo-27 or deo-43 | 
| NH5050 | 10 | F-, lac-61, glnX44(AS)?, gal-44, λ-, sbcB15, recA1, recB21, endA1, thiE1?, deo-27 or deo-43 |