AKT1 and meningioma: The most frequent coding changes identified in non-NF2 meningiomas were missense mutations in TNF Receptor Associated Factor 7 (TRAF7), Kruppel-like factor 4 (KLF4), and RAC(Rho family)-alpha serine/threonine-protein kinase 1 (AKT1) (7, 8).