Firstly, we compared the gene expression of AKT2 (Fig. 9A) and DAPK1 (Fig. 9B) in pan-cancer, among which Merkel cell carcinoma and Skin cutaneous melanoma (SKCM) ranked the highest AKT2 and DAPK1 expression, respectively. Here, DAPK1 is linked to Merkel cell skin cancer.