Figure 4. AIB transport by Rlv3841 and AA031 (Δnpr) and AA031 complemented with the empty vector pRK415 (EV), NPr, expressed from the constitutive lac promoter in multi-copy (+NPr) or a non-phosphorylatable variant (+NPrH17A).

Data are averages (± SEM) from ≥3 independent cultures and rates are nmol min⁻¹ mg protein⁻¹.