Encephalopathy Due to Defective Mitochondrial and Peroxisomal Fission 2, also known as empf2, is related to congenital hemidysplasia with ichthyosiform erythroderma and limb defects and spasticity. An important gene associated with Encephalopathy Due to Defective Mitochondrial and Peroxisomal Fission 2 is MFF (Mitochondrial Fission Factor). Affiliated tissues include brain, and related phenotypes are seizure and spasticity