Our differential expression analyses of gene-related probes showed nominal upregulation in depression for PPP3R1, which was replicated in both GSE53987 (prefrontal cortex) (Supplementary Table S7) and GSE64930 (whole blood) (Supplementary Table S8), consistent with the upregulation observed in the PSY cohort. Here, PPP3R1 is linked to depressive symptom measurement.