Figure 3

Abundance of mitochondrial proteins in gastrocnemius muscle. Iron-containing proteins of the electron transport chain are expected to decrease with iron deficiency. A. Cytochrome c protein levels decreased dramatically with iron deficiency (p<0.01). B. COX1 protein levels decreased dramatically with iron deficiency (p<0.01). C. Succinate dehydrogenase protein levels were undetectable in tissues of ID animals. Since below 2 arbitrary units would have been considered to be significantly different, it can be concluded that the reduction in succinate dehydrogenase was statistically significant.