p53 aerobics: The major tumor suppressor fuels your workout

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p53 aerobics: The major tumor suppressor fuels your workout Jan-Philipp Kruse, Wei Gu  Cell Metabolism  Volume 4, Issue 1, Pages 1-3 (July 2006) DOI: 10.1016/j.cmet.2006.06.004 Copyright © 2006 Elsevier Inc. Terms and Conditions

Figure 1 Mice that are wild-type for p53 primarily use aerobic respiration for the production of ATP, a more efficient way to generate energy for physical activity than glycolysis p53 regulates the energy metabolism by transcription of SCO2, promoting the assembly of the cytochrome c oxidase complex (COXII). In mice with homozygous deletion of p53, the level of SCO2 is low, thereby preventing COXII assembly and concomitant decreased aerobic respiration, promoting the switch to glycolysis. Glycolytic energy production is not sufficient to generate ATP for prolonged exercise, resulting in premature exhaustion. Cell Metabolism 2006 4, 1-3DOI: (10.1016/j.cmet.2006.06.004) Copyright © 2006 Elsevier Inc. Terms and Conditions