NAT1 and colon adenocarcinoma: Next, we constructed a novel gene-based signature consisting of 13 genes (FXYD3, MIER3, LINC01133, CHGA, TSPAN1, HRCT1, FRMD3, NR3C2, SLC41A2, NAT1, NAT2, ZG16, and PPARGC1A) for predicting the OS of COAD patients.