Fig. 6From: Module and individual domain deletions of NRPS to produce plipastatin derivatives in Bacillus subtilisMS/MS analysis of pentapeptide produced by mutant strain BA6. a The sequence of pentapeptide and seven characteristic product ions b1 ~ b4 and y2 ~ y4. b MS/MS spectrum of pentapeptide ion [M + H]+ at m/z 923.5330 and assignment of key product ionsBack to article page