GPT and glioma: However, correspondence analysis showed that the telomerase group consisted predominantly of wtATRX/mutTERTp/wtIDH gliomas, while the ALT group consisted predominantly of ATRXloss/wtTERTp/wtIDH, wtATRX/wtTERTp/mutIDH, and wtATRX/wtTERTp/wtIDH gliomas (Fig. 1d).