Fig. 3: Effect of amino acid substitutions in the acyl ligase (AL) domain on iturin production.

The relative abundance and productivity of iturin. Values and error bars represent the mean and the standard deviation, respectively, of four independent experiments. a Mutant strains containing F208L, K287R, and/or A332T mutation(s). b Mutant strains with mutations at F208. The number of atoms in the amino acid side chain is listed to the left of the strain name.