Although we did not find evidence for rs3735951 acting as cis-eQTL in preexisting datasets of cortical gene expression (GSE8919 and GSE30272)35, 36, that could explain the RNF122 expression differences identified in ADHD (See Supplementary Table S3), functional prediction revealed that rs3735951 may lie within a partially overlapped exonic splicing enhancer (ESE) site and an exonic splicing silencer (ESS) site (See Supplementary Table S4). Here, RNF122 is linked to attention deficit-hyperactivity disorder.