Likewise, 96% (43/45) of oligodendrogliomas and 37% (11/30) of astrocytomas had retained ATRX staining, with a statistically significant differential expression between the two IDH Mut glioma lineages (P ≤ 0.05) (Fig. 1o). The gene discussed is ATRX; the disease is astrocytoma (excluding glioblastoma).