After a 2-week exposure to 200 nM DAC, 30,915 probes (corresponding to 9996 unique genes) were hypomethylated in IDH1 mutant TS603 glioma cells and 130,017 probes (corresponding to 17,182 unique genes) were hypomethylated in TS667 cells (Δβ value < -0.4) (Supplemental Table 1). The gene discussed is IDH1; the disease is central nervous system cancer.