Fig. 4From: Module and individual domain deletions of NRPS to produce plipastatin derivatives in Bacillus subtilisa LC–ESI–MS total chromatogram of crude extract from mutant strain BA6. b Chromatogram corresponding to m/z 1327.7401. c Chromatogram corresponding to m/z 923.5341. d Chromatogram corresponding to m/z 1036.6182. e High-resolution ESI–MS of parent ions from compound 1, 2 and 3Back to article page