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. 2015 Jul 31;197(17):2850–2858. doi: 10.1128/JB.00401-15

FIG 6.

FIG 6

LC-MS/MS analysis of APMF-Glu in the positive ion mode. (A and B) Extracted ion chromatographs of MH+ = 376.2 m/z ion from the control experiment (A) (incubation of F1-P with γ-glutamyltyramine in the presence of MfnF) and from the reaction mixture of MfnF containing F1-PP generated from the MfnE reaction and γ-glutamyltyramine (B). (C) MS/MS spectrum of MH+ = 376.2 m/z ion with the expected fragments at 110, 213, 230, and 267 m/z. The proposed structures of observed fragments are shown at the bottom of the figure.