Fig. 6.

Engineering BCAA permeases, YvbW and BraB, for enhancement production of bacitracin. A: Strengthening YvbW and BraB expressions improved bacitracin production. B: The concentrations of intracellular BCAAs, C: The concentrations of extracellular BCAAs. Each experiment was repeated at least three times, and data are represented as the means of three replicates and bars represent the standard deviations, ∗, P ​< ​0.05; and ∗∗, P ​< ​0.01 indicate the significance levels between recombinant strains and control strain.