SLC1A2 and isolated aniridia: Recently, chromosomal microdeletions of GLAST and GLT1 were linked to schizophrenia [26]–[28] and Wilms tumor, Aniridia, Genitourinary malformations and mental Retardation (WAGR) syndrome [29], respectively, and GLT1 (on 11p12-p13) was located near an autism risk locus [30].