Finally, CG10664, a strong MG hit with BC phenotype, which appears to inhibit protein synthesis/transport (Figure 4D) and G1/S transition (Figure 4A–B), exhibits a C-terminal KKxKx motif and is predicted to encode a 182 aa putative Drosophila homologue of cytochrome C oxidase subunit IV. This evidence concerns the gene COX4I1 and breast cancer.