Genotyping data from one patient with unexplained mental retardation and a deletion in 15q13

Recurrent deletions on 15q13.3 have been identified as a predisposition to mental retardation, epilepsy and psychiatric disease. We report compound heterozygous deletions on 15q13.3 in one patients with severe encephalopathy and seizures. We analysed two independent patients with severe encephalopathy and seizures and found heterozygous deletions on 15q13.3 in both patients.