Skip to main content
. 2020 Aug 3;295(48):16207–16216. doi: 10.1074/jbc.RA120.013899

Figure 4.

Figure 4.

Flux through NNT contributes to energy expenditure during ΔGATP clamped respiration. A, JO2 versus clamped free energy of ATP hydrolysis (ΔGATP; increasing ATP/ADP free concentration ratio) in skeletal muscle mitochondria isolated from C57BL/6N (which express NNT) and C57BL/6J (which do not express NNT), supported by PCoA (20 μm) and carnitine (5 mm) −/+ BCNU/auranofin (0.1 μm/100 μm). B, ΔΨm versus clamped free energy of ATP hydrolysis (ΔGATP) measured under the same conditions. C, JH2O2 versus clamped free energy of ATP hydrolysis (ΔGATP) measured under the same conditions. D, pairwise comparison of JO2 between groups from A at the most negative ΔGATP (highest ATP/ADP ratio). E, pairwise comparison of ΔΨm between groups from A at the most negative ΔGATP. F, pairwise comparison of JH2O2 between groups from A at the most negative ΔGATP. All data are means ± S.E. (error bars); *, p < 0.05 compared with B6N using two-way ANOVA (repeated measures for A–C); n = 8 mice/group (JO2/JH2O2); n = 4 mice/group (ΔΨm).