High expression of MTTP also shows a worse prognosis in GBM patient (Fig. 7k)48, and single-cell analysis in published data sets9 suggest MTTP is more expressed in stem cell or mesenchymal subtype of tumor cells (Supplementary Fig. 7e), which is consistent with our previous observation of activation of glycerol metabolism in BTSCs30. The gene discussed is MTTP; the disease is glioblastoma.