Because of the genomic location of the schizophrenia rs138880 risk variant immediately upstream of exon 1C (Fig 1a) and the observation that it is associated with reduce BRD1 expression [14], we decided to investigate if it is also associated with increased methylation in its vicinity in a public available dataset including Ilumina 450K adipose methylome data from 648 twins (the Multiple Tissue Human Expression Resource (MuTHER)) [27]. Here, BRD1 is linked to schizophrenia.