RT Journal Article SR Electronic(1) A1 Garcia-Morales, Lazaro A1 Leon-Solis, Lizbel A1 Monroy-Muñoz, Irma E. A1 Talavera-Paulin, Moises A1 Serafin-López, Jeanet A1 Estrada-Garcia, Iris A1 Rivera-Gutierrez, Sandra A1 Cerna-Cortes, Jorge F. A1 Helguera-Repetto, Addy C. A1 Gonzalez-y-Merchand, Jorge A.YR 2017 T1 Comparative proteomic profiles reveal characteristic Mycobacterium tuberculosis proteins induced by cholesterol during dormancy conditions JF Microbiology, VO 163 IS 8 SP 1237 OP 1247 DO https://doi.org/10.1099/mic.0.000512 PB Microbiology Society, SN 1465-2080, AB Cholesterol has been reported to play an important role during Mycobacterium tuberculosis infection and during its dormant state inside the host. We present the determination of proteomic profiles of M. tuberculosis H37Rv in the presence of cholesterol as the sole carbon source under exponential growth and in two in vitro dormancy phases (NRP1 and NRP2). Using 2D-PAGE, we detected that M. tuberculosis expressed a high diversity of proteins in both exponential and non-replicative phases. We also found that cholesterol was involved in the overexpression of some proteins related to sulfur metabolism (CysA2), electron transport (FixB), cell wall synthesis (Ald), iron storage (BfrB), protein synthesis (Tig and EF-Tu) and dormancy maintenance (HspX and TB 31.7). According to our results we propose that proteins Ald, BfrB, FadA5 and TB31.7 are likely to play a fundamental role during in vitro dormancy of M. tuberculosis in the presence of cholesterol, helping to counteract its intracellular hostile microenvironment., UL https://www.microbiologyresearch.org/content/journal/micro/10.1099/mic.0.000512