CTCF and familial hyperaldosteronism: Based on Roadmap Epigenomics data rs79747906 does not appear to map to a regulatory region in normal UGI tissues or blood, but the C allele, which was positively associated with FH, overlapped with a weak CTCF binding function in ENCODE cells including Human Esophageal Epithelial Cells (HEEpiC) (Table 3 and SI Figure 1).