NAIP and Intellectual disability: These were NAIP (neuronal apoptosis inhibitory protein), SLC6A13 (gamma-aminobutyric acid (GABA) transporter), KIAAA0738 (zinc-finger transcription factor, expressed in brain), CHRFAM7A (fusion of acetylcholine receptor gene and FAM7), ARHGEF5 (guanine exchange factor), ROCK1 (Rho-dependent protein kinase), and also members of the gene families: ARHGEF, PAK, RhoGAP and USP10 (ubiquitin-specific protease) associated with various forms of mental retardation.