Fig. 10
From: Identification of lipopeptides in Bacillus megaterium by two-step ultrafiltration and LC–ESI–MS/MS
LC-ESI–MS/MS spectrum of the linear fengycin precursors. a Linear fengycin A precursors ion [M + H]+ at m/z 1495 containing a Glu1-Orn2-Tyr3-Thr4-Glu5-Ala6-Pro7-Gln8-Tyr9-Ile10 peptide and a C17 β-hydroxy fatty acid chain with a double bond. b Linear fengycin B precursors ion [M + H]+ at m/z 1495 containing a Glu1-Orn2-Tyr3-Thr4-Glu5-Val6-Pro7-Gln8-Tyr9-Ile10 peptide and a C15 β-hydroxy fatty acid chain with a double bond