TABLE 4.
AcrB protein or substitution(s)a | MIC (μg/ml)b |
|||||
---|---|---|---|---|---|---|
Ery | Nov | Min | Nal | Cip | SDS | |
AcrB-WT | 128 | 128 | 1 | 4 | 0.032 | 800 |
F610A | 4 | 16 | 0.25 | 1–2 | 0.008 | 400 |
G288D | 64 | 64 | 0.5 | 4 | 0.032 | 400 |
F610A, G288D | 64 | 64 | 1 | 4 | 0.032 | 800 |
The G288D substitution involved changing the GGT codon to GAT.
Ery, erythromycin; Nov, novobiocin; Min, minocycline; Nal, nalidixic acid; Cip, ciprofloxacin; SDS, sodium dodecyl sulfate.