We report here a new family with X-linked mental retardation due to mutation in OPHN1 and present unpublished data about two families previously reported , concerning the facial and psychological phenotype of affected males and carrier females .
O O O O O O O B-DiseaseOrPhenotypicFeature I-DiseaseOrPhenotypicFeature I-DiseaseOrPhenotypicFeature O O O O B-GeneOrGeneProduct O O O O O O O O O O O O O O O O O O O O O O O