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. 2019 Mar 6;9:3660. doi: 10.1038/s41598-019-40051-5

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© The Author(s) 2019

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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UPLC-MS analysis of total lipids from MTB in the positive-ion mode. The intensities of the 164 lipids identified, which were present across all the conditions analyzed, are plotted. Fatty acyls - mycolic acids: alpha (a), carboxy (b), epoxy (c), keto (d), methoxy(e) and W1-methoxy (f); mycolipodienic acid (g), mycoserosoic acid (h) and mycolactones (i). The elemental formulae and degree of unsaturation (in brackets) are given. Error bars represent standard deviations from three biological replicates.