Fig. 3From: Improving the production of AHL lactonase AiiO-AIO6 from Ochrobactrum sp. M231 in intracellular protease-deficient Bacillus subtilisGrowth curve of intracellular protease-deficient strains. CK, pWB980/BS1A751, wild-type (WT), pWB980-AIO6BS/BS1A751; ∆ymfH,∆yrrN, ∆ywpE, ∆tepA: intracellular protease-deficient mutants harboring the expression vector pWB980-AIO6BSBack to article page