MAML2 and meningioma: Previous studies have shown the transforming activity of the YM fusion in mouse 3T3 cells6 and its potential to induce meningioma-like tumors when a truncated form of the fusion (lacking portions of MAML2 sequences equivalent to amino acids (aa) 321–569 or 885–1141 of wild-type MAML2) is introduced into mouse p16-null newborn pup brains.19