BTG2 and Mobius syndrome: This is also consistent with the large Btg2 deregulation observed in human MBs in ONCOMINE database6, where in classic and desmoplastic medulloblastoma samples there is large decrease or increase (from 0.5 to 5.5 log2 median intensity) of Btg2 expression, relative to control cerebellum samples (average 3.5 log2 median intensity), thus indicating ample deregulation of expression.