ATRX and neoplasm: In contrast to tumor tissues, NATs did not show many gene amplifications, whereas deletions of X-chromosome genes such as lysine demethylase 5C (KDM5C), lysine demethylase 5C (KDM6A), ATRX chromatin remodeler (ATRX), and BCL6 corepressor (BCOR) were commonly observed.