With the exception of one sample, all GBM samples expressed IL-13Rα2 to varying degree (~64-kDa and detectable levels of both wtEGFR (~170kDa) and mutant EGFRvIII (~145kDa) proteins (Fig. 1d), suggesting that these receptors may play a role in gliomagenesis. The gene discussed is IL13RA2; the disease is glioblastoma.