For this classification, class discriminability sdis is highest between class toLGG (cases that are most similar to low-grade glioma cases by their mutation profile) and class toPRAD for low-grade glioma (LGG) (sdis = − 3.26; p = 0.0; srand = − 6.1e−5; characteristic protein profiles increased in toLGG: p70S6K_pT389; increased in ToPRAD: YAP_pS127, HER2_pY1248, HER2, EGFR_pY1068, EGFR_pY1173, Src_pY416, and Cyclin_D1). The gene discussed is ERBB2; the disease is central nervous system cancer.