Protein Arginine Methyltransferase 3, PRMT3 (chromosome 11p15.1) variant rs74761974 (A-allele) related to SRE measures in a preliminary analysis of a recent GWAS (1.4×10−8) (Wetherell et al., 2017). A nearby gene of interest is the glycine neurotransmitter transporter, SLC6A5.