Figure 4A shows the mutation rate of TACC3 and its protein positions in breast cancer. We found that the TACC3 protein had the highest mutation rate at positions 670–671. On the contrary, the mutation rate of the TACC3 protein was the lowest at 0–42 and 545–587. Additionally, the CNVs squares indicate the CNVs gain or loss for TACC3 in breast cancer (Figure 4B). We found that the distribution of CNVs primarily included gain, loss, none, and normal, and was positively correlated with the expression of TACC3 in breast cancer (cor = 0.112, p = 0.0021). This evidence concerns the gene TACC3 and breast cancer.