MECP2 and Seizure: Seizures manifest in 100% of Mecp2–/y, 100% of Dlx5/6-Cre;Mecp2fx/y, 52.9% of SStCre/+;Mecp2–/y, 35.0% of PVCre/+;Mecp2–/y, and 37.5% of VIPCre/+;Mecp2fx/y mutants.