TP63 and ankyloblepharon-ectodermal defects-cleft lip/palate syndrome: The most prominent of these disorders is the Ectrodactyly Ectodermal dysplasia and Cleft lip/palate syndrome (EEC, OMIM 604292) which combines all of the three phenotypic hallmarks and is almost invariably caused by missense mutations in the DNA binding domain of p63. Ankyloblepharon Ectodermal defects Cleft lip/palate syndrome (AEC, OMIM 106260) is caused by mutations in the SAM domain of the p63 that is involved in protein interaction.