According to the gene expression level of GGT5, the TCGA stomach adenocarcinoma samples (https://www.cancer.gov/tcga/) were stratified into a high-expression group (N = 203) and a low-expression group (N = 204) with a total number of uni-genes of 56,493 (Supplementary Table S2). This evidence concerns the gene GGT5 and gastric adenocarcinoma.