Figure 4A. v-WAT iTRAQ ratio of proteins from BCAA catabolism (wt, n= 4; LowOXPHOS, n= 4). Higher intensities of blue colors represent lower LowOXPHOS/wt expression ratios. B. Odd chain FAs in Skm and WAT from wt (n= 8) or LowOXPHOS (n= 8) mice. Data information: Bars are the mean ± s.e.m. of the indicated (n) mice/genotype. *p <0.05 when compared to wt by Student's t-test. Representative WB expression (C) of v-WAT proteins from lipid metabolism. Each sample contains extracts from 3 mice. The histogram shows the quantifications (wt, n= 6; LowOXPHOS, n= 6). Data information: Bars are the mean ± s.e.m. of the indicated (n) mice/genotype. *p <0.05 when compared to wt by Student's t-test. iTRAQ analysis (D) of v-WAT proteins from lipid metabolism. Each sample contains extracts from 3 mice. The histogram shows the quantifications (wt, n= 6; LowOXPHOS, n= 6). E. v-WAT weight expressed as a percentage of the wt (wt, n= 12; LowOXPHOS, n= 12). F. Quantitative lipidomics in v-WAT. The color scale (brown to blue) in the heat map represents LowOXPHOS/wt amounts of specific lipid species. A p-value ≤ 0.05 was considered statistically significant (red). Each sample is a pool from 4 mouse extracts, n= 8/genotype. Data information: Bars are the mean ± s.e.m. of the indicated (n) mice/genotype. *p <0.05 when compared to wt by Student's t-test. G. v-WAT amounts of triacylglycerides (TAGs) and diacylglycerides (DAGs) (wt, n= 8; LowOXPHOS, n= 8). Data information: Bars are the mean ± s.e.m. of the indicated (n) mice/genotype. *p <0.05 when compared to wt by Student's t-test. H. Higher saturated lipid species in LowOXPHOS mice compared to wt (wt, n= 8; LowOXPHOS, n= 8). Data information: Bars are the mean ± s.e.m. of the indicated (n) mice/genotype. *p <0.05 when compared to wt by Student's t-test. I. MitoSox staining in myocytes expressing or not ATPIF1H49K. The right histogram shows the quantification of mitochondrial ROS. Bars are the mean ± s.e.m. of n= 3 experiments, 12 replicas/condition. Data information: Bars are the mean ± s.e.m. of the indicated (n) mice/genotype. *p <0.05 when compared to wt by Student's t-test. J. Representative WB of Skm lipid peroxidation and redox system proteins. Two samples per condition are shown. Each sample contains extracts from 3 mice. Histograms represent quantification (wt, n= 6; LowOXPHOS, n= 6). 4-Hydroxynonenal (4HN), peroxiredoxin 2, 3 and 6 (PRX), superoxide dismutase 1 and 2 (SOD), catalase (CATA) and glutathione reductase (GSR) immunoblots are shown. βF1 is presented as a loading control. Data information: Bars are the mean ± s.e.m. of the indicated (n) mice/genotype. *p <0.05 when compared to wt by Student's t-test. K. Representative WB of Skm OXPHOS and related system proteins. Two samples per condition are shown. Each sample contains extracts from 3 mice. Histograms represent quantification (wt, n= 6; LowOXPHOS, n= 6). NDUFA9 (CI), SDHA and B (CII), ETF subunits A and B, ETFDH, CoreII (CIII), subunit 1 (CIV), βF1(CV) and hATPIF1 immunoblots are shown. Tubulin is presented as a loading control. Data information: Bars are the mean ± s.e.m. of the indicated (n) mice/genotype. *p <0.05 when compared to wt by Student's t-test. L. Skm iTRAQ ratio of FADH2-binding proteins (wt, n= 12; LowOXPHOS, n= 12). A higher intensity of red color represents a higher LowOXPHOS/wt expression ratio. M. Oxidized FAD levels and the reduced/oxidized FAD ratio in Skm extracts (wt, n= 8; LowOXPHOS n= 8). Data information: Bars are the mean ± s.e.m. of the indicated (n) mice/genotype. *p <0.05 when compared to wt by Student's t-test.