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. 2018 Jul 18;38(6):545–554. doi: 10.3343/alm.2018.38.6.545

Fig. 2. Mass spectrometry of lipid A extracted from colistin-susceptible isolates and CR-AB. (A) ATCC 17978, wild type CS-AB. (B) CR-AB18, Group non-CT. (C) CR-AB14, Group CT. The mass (m/z) of peaks only detected in CR-AB strains is indicated in bold.

Fig. 2

Abbreviations: Hexa, hexa-acylated lipid A; Hepta, hepta-acylated lipid A; Octa, octa-acylated lipid A; PE, phosphoethanolamine; C, carbon; CS-AB, colistin-susceptible Acinetobacter baumannii; CR-AB, colistin-resistant Acinetobacter baumannii.