Figure 2. mRNA and protein levels of and genetic alterations in the 11 identified ERGs. (A) mRNA levels between tumor and normal tissues in the training set. (B) Protein levels between tumor and normal tissues obtained from the Human Protein Atlas database (HCFC2 and GADD45A are not available). (C) Genetic alterations in the 11 LUAD-related ERGs according to data obtained from the cBioPortal for Cancer Genomics.