These findings based on microarray gene expression data were confirmed by directly assessing STK17A mRNA and protein expression which demonstrated substantial overexpression (up to 20-fold) of STK17A in GBM cell lines compared to non-GBM cancer cell lines originating from other organs and normal brain (Figure 1B, Figure 2 and Figure S2). The gene discussed is STK17A; the disease is glioblastoma.