For enhancer C, identified by Chen et al. [30], located 560 kb upstream of the MGMT promoter, we obtained a significant negative correlation between mean methylation and methylation of individual CpGs 05–08, 11–14, and 37–39 with MGMT protein levels for glioblastoma samples expressing MGMT [15]. The gene discussed is MGMT; the disease is glioblastoma.