Table 1.
Non-inducers of liaI Expression and Inducers of liaI Expression.
| Compound | liaI Expression | Disk diffusion assay response |
|---|---|---|
| Kanamycin | Non-inducer | Negative |
| Rifampicin | Non-inducer | Negative |
| Tetracycline | Non-inducer | Negative |
| Chloramphenicol | Non-inducer | Negative |
| Spectinomycin | Non-inducer | Negative |
| Streptomycin | Non-inducer | Negative |
| SDS | Non-inducer | Negative |
| Triton | Non-inducer | Negative |
| DNP | Non-inducer | Negative |
| Lysozyme | Non-inducer | Negative |
| Ampicillin | Inducer | Negative |
| Bacitracin | Inducer | Positive |
| Cepaholsporin | Inducer | Negative |
| D-cycloserine | Inducer | Negative |
| Moenomycin | Inducer | Negative |
| Nisin | Inducer | Positive |
| Penicillin G | Inducer | negative |
| Polymyxin B | Inducer | negative |
| Ramoplanin | Inducer | Positive |
| Tunicamycin | Inducer | Positive |
| Vancomycin | Inducer | Positive |
Activity was assessed by the appearance of a blue ring around the edge of the zone of inhibition on LB agar plates supplemented with X-Gal. (Compounds were tested in a range concentration of 50–0.5 mg/mL).