CHST11 and post-traumatic stress disorder: Finally, cg04130728 in the carbohydrate (chondroitin 4) sulfotransferase 11 gene (CHST11) was among the top 10 most strongly associated CpG sites in the Discovery Cohort and this probe associated with PTSD in the PFC at a level that withstood correction for the 100 probes that were examined for replication in the Brain Bank Cohort.