Davis et al. identified in a patient with aniridia, autism and intellectual disability a 1.3 Mb deletion, situated approximately 35 kb downstream of the PAX6 gene, comprising the ELP4, DPH4, DCDC1, DCDC5, MPPED2, and IMMP1L genes (Davis et al. 2008). This evidence concerns the gene DCDC1 and Intellectual disability.