The α-ND6 N-term antibody, which specifically recognizes an epitope at the N-terminal, besides revealing the signal of the full-length protein (ND6-WT), showed only in the tumor sample the presence of a lower molecular weight band compatible with the truncated ΔND6 protein (Fig. 1A and Supplementary S1-A). The gene discussed is MT-ND6; the disease is neoplasm.