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. 2018 May 3;59(7):1190–1204. doi: 10.1194/jlr.M082784

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Copyright © 2018 by the American Society for Biochemistry and Molecular Biology, Inc.

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Fig. 4. — Comparison of the relative abundances of IM and OM lipids in C. glutamicum WT and the Δtmat mutant bacteria. The relative abundance of 185 species, identified by LC-MS/MS profiling, in the IM and OM fractions of C. glutamicum WT and the ΔtmaT mutant bacteria. Lipid abundances (based on ion intensities) represent the mean value of six replicates. The relative abundance of DAG and TAG based lipid classes (A), PG and CL-based lipid classes (B), PI/PIM and Gl glycolipid classes (C), hTMCM species (D), other trehalose and glucose corynemycolates (E) and h2TDCM species (F) are shown. The most abundant lipids of WT IM were the DAGs, Ala-DAGs, PGs, CLs, Gl-As, hTMCMs, and ketoTMCMs, and for the WT OM, the hTMCMs, h2TDCMs, Gl-As, PGs, and CLs. Compared with WT bacteria, the IM fraction of the ΔtmaT mutant was deficient in AcTMCM, Acyl-AcTMCM, and Acyl-PG-like species and had decreased amounts of PGs, Acyl-PGs, Ala-DAGs, and h2TDCMs, while the OM fraction was deficient in Acyl-PG, decreased in PG, hTMCM, AcTMCM, and h2TDCM and increased in hGMM and Acyl-hTMCM.

Fig. 4. — Comparison of the relative abundances of IM and OM lipids in C. glutamicum WT and the Δtmat mutant bacteria. The relative abundance of 185 species, identified by LC-MS/MS profiling, in the IM and OM fractions of C. glutamicum WT and the ΔtmaT mutant bacteria. Lipid abundances (based on ion intensities) represent the mean value of six replicates. The relative abundance of DAG and TAG based lipid classes (A), PG and CL-based lipid classes (B), PI/PIM and Gl glycolipid classes (C), hTMCM species (D), other trehalose and glucose corynemycolates (E) and h2TDCM species (F) are shown. The most abundant lipids of WT IM were the DAGs, Ala-DAGs, PGs, CLs, Gl-As, hTMCMs, and ketoTMCMs, and for the WT OM, the hTMCMs, h2TDCMs, Gl-As, PGs, and CLs. Compared with WT bacteria, the IM fraction of the ΔtmaT mutant was deficient in AcTMCM, Acyl-AcTMCM, and Acyl-PG-like species and had decreased amounts of PGs, Acyl-PGs, Ala-DAGs, and h2TDCMs, while the OM fraction was deficient in Acyl-PG, decreased in PG, hTMCM, AcTMCM, and h2TDCM and increased in hGMM and Acyl-hTMCM.