As additional evidence for the contribution of mitochondrial autoimmunity to breast carcinogenesis, autoantibodies in BC sera were found to target coding and noncoding regions of the COX7A2 gene (Figure 3A) and 3′-UTR of COA4 (Figure 5A; Table 1; Supplementary Table S1). Here, COX7A2 is linked to Autoimmunity.