Figure 1

(A) Structure of complex 1. (B) Cellular uptake data for complex 1. The cellular copper levels are shown for whole cells, intact nuclei (Int. Nuc.), cytoplasm, soluble fraction of nuclei (Sol. Nuc.), and insoluble residue (Insol. Res.) remaining after extracting the cytoplasm and soluble nuclear fractions. Quantification data are represented as mean (n = 4).