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. 2013 Nov;79(22):6874–6884. doi: 10.1128/AEM.02169-13

Fig 4.

Fig 4

(A) High-resolution accurate-mass quadrupole OT/MS2 mass spectrum of T. sphagniphila lipid extract group II dimethylornithine m/z 651.5666. The chemical formulas represent neutral losses and products after MS2 fragmentation. (B) Proposed gas phase fragmentation pathway of dimethylornithine m/z 651.5666.