Non-syndromic mental retardation, X-linked – AP1S2 ARX ATRX BRWD3 CASK CUL4B CLCN4 DLG3 FTSJ1 GDI1 HCFC1 IL1RAPL1 IQSEC2 MECP2 NEXMIF NLGN4X PAK3 RAB39B RLIM SLC16A2 SYP THOC2 TSPAN7 USP9X ZNF711