Interestingly, several of these genes were present on 8q, a recurrently amplified region in MBCs and TNBCs, including COX6C, YWHAZ, and ATP6V1C1 on 8q22 (Fig. 4a) and RAD21, NDUFB9, and MYC on 8q24 (Fig. 4b). This evidence concerns the gene ATP6V1C1 and maternal uniparental disomy of chromosome 20.