TABLE 3.
Restoration of nystatin production in cross-complementation experiments with the regulatory mutantsa
| Mutant | Nystatin production (% of WT)b with complementation by:
|
|||
|---|---|---|---|---|
| pNRE2 (ermE*p::nysRI) | pC3A1 (ermE*p::nysRII) | pNRT3 (ermE*p::nysRIII) | pNR4EL (ermE*p::nysRIV) | |
| SR12 (ΔnysRI) | 60 | 58 | 68 | 62 |
| SR34 (ΔnysRII) | 5.4 | 100 | 5.6 | 77 |
| SR56 (ΔnysRIII) | 8.5 | 11 | 98 | 87 |
| NR4K (nysRIV::Kmr) | 2.5 | 2.0 | 2.5 | 60 |
a
See the text for details.
b
Values are means from two independent experiments. Variations were within 11% of the mean.